Systems and methods for determining pelvic floor dysfunction
By combining machine learning algorithms and patient questionnaire data and behavioral data, pelvic floor muscle dysfunction and bladder dysfunction are quickly and accurately diagnosed, solving the complex and time-consuming problems in the existing technology, and achieving efficient and accurate diagnosis and treatment.
Patent Information
- Application Number
- JP2023123746
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-07-28
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2043-07-28
AI Technical Summary
The prior art has problems such as complex, time-consuming, high cost, low efficiency and inaccurate diagnosis of pelvic floor muscle dysfunction and bladder dysfunction, resulting in poor treatment results and low patient satisfaction.
A device and method is adopted to use machine learning algorithms, especially neural networks, to combine patient questionnaire data and behavioral data to quickly and accurately diagnose pelvic floor muscle dysfunction and bladder dysfunction. By dynamically updating and verifying diagnostic results, it reduces irrelevant data collection and improves diagnostic efficiency and accuracy.
It significantly shortens the time from the onset of symptoms to the correct diagnosis, reduces the treatment cycle, improves the accuracy and efficiency of diagnosis, reduces medical costs, enhances the safety and effectiveness of treatment, and reduces patient dissatisfaction.
Smart Images

Figure 2025019872000001_ABST
Abstract
Description
[Technical field]
[0001] The present invention relates to an apparatus and method for determining pelvic floor dysfunction in a patient. [Background technology]
[0002] Diagnosing pelvic floor and bladder dysfunction is a complex process. Different pelvic floor and bladder symptoms can have a variety of overlapping symptoms and different causes. For example, two patients may present with the same symptoms (such as the onset of incontinence), but the underlying causes of those symptoms may be different (e.g., one patient may have overactive bladder (OAB) and another may have stress urinary incontinence (SUI)).
[0003] Correct diagnosis is essential because treatments for OAB are ineffective for SUI-related incontinence and vice versa.
[0004] Current methods for diagnosing patients with pelvic floor and bladder dysfunction are time-consuming and complex, requiring a series of trial-and-error treatment approaches until adequate results are achieved, resulting in longer treatment times, increased costs, reduced safety and efficacy of treatment, and patient dissatisfaction.
[0005] It usually takes months, and sometimes years, from when a patient first exhibits symptoms until they are correctly diagnosed. Early diagnosis leads to better outcomes, as many pelvic floor and bladder conditions have a treatment window where early intervention can help halt the progression of symptoms. Therefore, a correct diagnosis is essential for effective and timely treatment.
[0006] However, identifying and diagnosing pelvic floor and bladder dysfunction presents challenges in terms of accuracy, consistency, and efficiency.
[0007] The present invention has been made with the above in mind. Summary of the Invention
[0008] According to a first aspect, there is provided an apparatus for determining a pelvic floor dysfunction symptom of a patient. The apparatus may comprise a processor. The processor may be configured to receive patient data. The patient data may be or include at least one of patient questionnaire data and behavioral data. The processor may be configured to use a machine learning algorithm to provide a determination of one or more pelvic floor dysfunction symptoms of the patient based on the received patient data.
[0009] Known approaches to identifying and adjudicating such conditions are time-consuming and resource-intensive, requiring patients to answer numerous questions, undergo extensive data recording exercises, or undergo invasive diagnostic procedures. Moreover, known approaches to identifying and adjudicating such conditions have low accuracy and consistency because patients often exhibit a wide range of variability that is difficult to understand and classify.
[0010] The device can enable the provision of an efficient, accurate and reliable determination of one or more pelvic floor dysfunction symptoms or bladder symptoms of a patient, compared to the slow, inefficient and often inaccurate traditional approach of manually assessing questionnaire data alone. The device can also use population-based data to provide an inherent validation of the questionnaire data (which may be subjective) and / or the patient's behavioral data, thanks to a machine learning algorithm trained using previous patient data and corresponding diagnoses. This can further improve the accuracy and reliability of the determination. Population-based data allows the machine learning algorithm to be sensitive to variations that a patient may exhibit.
[0011] Efficient determinations also enable the device to more easily and quickly provide repeat determinations at different points in time based on new, different, or changing patient data, allowing a physician to more quickly determine if their current symptom determination is correct and / or if their current treatment plan is improving the patient's symptoms, thereby shortening the time between when a patient first exhibits symptoms and being correctly diagnosed, helping to prevent the progression of pelvic floor dysfunction or bladder symptoms and improving the patient's health.
[0012] The machine learning algorithm may be or may comprise a neural network, which may have an input layer comprising a number of neurons, each of which may correspond to a different possible answer to a question or an indication of behavioral data.
[0013] This may enable the device to provide a call for one or more symptoms based on incomplete data or different subsets of data. For example, the device may be able to provide a call based on questionnaire data, behavioral data, or both, using the same underlying approach. This may greatly increase the flexibility and applicability of the device compared to traditional diagnostic approaches for such symptoms. This may allow the patient's potentially subjective questionnaire data to be validated using the patient's behavioral data, further improving the accuracy and efficiency of the call.
[0014] The processor may be configured to provide an initial determination of the one or more symptoms based on the survey data received at the first time. The processor may also be configured to provide an updated or verifying determination of the one or more symptoms based on at least the behavioral data received at a second time after the first time. The updated or verifying determination may be based on both the behavioral data and the survey data received at the second time.
[0015] The flexibility of the device to efficiently provide an accurate assessment based on patient questionnaire and / or behavioral data may enable the device to more easily and quickly provide repeat assessments at different points in time based on new, different, or changing patient data, thereby allowing a physician to quickly determine whether a current symptom assessment is correct and / or whether a current treatment plan is improving the patient's symptoms.
[0016] The processor may be further configured to train or update the machine learning algorithm based on the received patient data.
[0017] Training or updating the algorithm based on received patient data can improve the reliability and accuracy of the determination as the size of the training dataset for the machine learning algorithm increases over time. In this way, the machine learning algorithm may be updated substantially continuously to take into account the outcomes of a population, rather than relying on a fixed approach as in traditional diagnostic approaches.
[0018] The device may further comprise a memory configured to store a plurality of questions. The plurality of questions may relate to a plurality of different symptoms. The processor may be further configured to select a question related to one or more symptoms for presentation to the user. The processor may be configured to select a next question based on patient data received in response to one or more previous questions.
[0019] Known approaches to identifying and assessing such pelvic floor dysfunction or bladder symptoms include lengthy, symptom-specific questionnaires. However, patients may present with one or more of several possible conditions, and reliance on one subset of questions may reduce sensitivity and specificity in assessing a patient's symptoms.
[0020] By selecting a next question from a plurality of questions related to a plurality of different symptoms based on patient data received in response to one or more previous questions, the device can more efficiently extract the most clinically relevant data from the questionnaire data. The clinically relevant data may include questionnaire data related to a plurality of symptoms while minimizing the number of questions presented to the patient. Irrelevant questionnaire data may also be reduced or eliminated, which may reduce burden on both the patient and the physician. Furthermore, only relevant questionnaire data is provided to the machine learning algorithm, further improving the efficiency and accuracy of the determination of the one or more symptoms.
[0021] The memory may be configured to store a ranking of a plurality of different symptoms in order of symptom prevalence. The processor may be configured to select an initial question related to the most common symptom.
[0022] The processor may be configured to determine whether the patient data received in response to the one or more preceding questions is indicative of a symptom associated with the one or more preceding questions. If the patient data is not indicative of a symptom associated with the one or more preceding questions, the processor may be configured to select a next question associated with the next most prevalent or likely symptom.
[0023] As a result, only the most clinically relevant data is extracted from the question and fed into the machine learning algorithm, further improving the efficiency and accuracy of determining one or more symptoms.
[0024] The processor may be configured to select the next question using branching logic, which may be predetermined or fixed.
[0025] The behavioral data may include one or more of the amount of fluid ingested, the amount of fluid voided, the amount of caffeine consumed, the amount of alcohol consumed, the number of incontinence episodes, the number of nocturia episodes, the number of bladder empties, and the number of incontinence episodes with urgency.
[0026] The behavioral data may be provided for at least one time period. Each time period may be 24 hours. The behavioral data may be an average or may include behavioral data provided for multiple time periods.
[0027] The processor may be configured to generate a digital user interface for the user electronic device. The digital user interface may enable input of patient data into the device. This may reduce or minimize anxiety for patients who are confused about their symptoms. This may also increase patient engagement and improve patient health.
[0028] The processor may be configured to implement the determination of one or more symptoms on a web application on the user electronic device, via a server backend, or in a native application on the user electronic device.
[0029] The processor may be configured to determine a targeted treatment program based on the processor's determination of the one or more symptoms, thereby allowing for a substantially personalized treatment for the patient. The processor may be further configured to determine an updated targeted treatment program based on the processor's updated determination of the one or more symptoms, thereby allowing for a quick and easy update of the treatment approach if a previous treatment program did not have the desired effect on improving the patient's symptoms.
[0030] According to a second aspect, there is provided a method of determining a pelvic floor dysfunction symptom of a patient. The method may comprise obtaining or receiving patient data. The patient data may be or comprise at least one of patient questionnaire data and behavioral data. The method may also comprise using a machine learning algorithm to provide a determination of one or more pelvic floor dysfunction symptoms of the patient based on the received patient data.
[0031] The method of the second aspect may be performed on or using the apparatus of the first aspect. The method of the second aspect may comprise one or more optional features corresponding to optional features of the apparatus of the first aspect.
[0032] According to a third aspect, there is provided a non-transitory computer program comprising instructions which, when executed by a processor, cause the processor to perform the method of the second aspect.
[0033] According to a fourth aspect, there is provided a computer readable medium having stored thereon the computer program of the third aspect.
[0034] Features described in the context of separate aspects and embodiments of the invention can be used together and / or interchangeable where possible. Similarly, where features are described in the context of a single embodiment for brevity, those features may be provided individually or in any subcombination. Features described in the context of an apparatus of the first aspect can have corresponding features definable in the context of the method of the second aspect, the computer program of the third aspect, or the computer-readable medium of the third aspect, and vice versa, and those embodiments are specifically envisaged. [Brief description of the drawings]
[0035] The invention will now be described, by way of example only, with reference to the accompanying drawings, in which:
[0036] [Figure 1] FIG. 1 illustrates an embodiment of a device for assessing one or more pelvic floor dysfunction or bladder symptoms in a patient according to the present invention. [Diagram 2] FIG. 2 illustrates an embodiment of a method for assessing one or more pelvic floor dysfunction or bladder symptoms in a patient according to the present invention. [Diagram 3] FIG. 3 illustrates another embodiment of a device for determining one or more pelvic floor dysfunction or bladder symptoms of a patient, comprising a memory configured to store a plurality of questions, in accordance with the present invention. [Figure 4A] FIG. 4A shows a flow chart illustrating how the processor of the device shown in FIG. 3 is configured to select a question from a plurality of questions in a memory. [Figure 4B] FIG. 4B shows a flow chart illustrating how the processor of the device shown in FIG. 3 is configured to select a question from a plurality of questions in a memory. [Figure 4C] FIG. 4C shows a flow chart illustrating how the processor of the device shown in FIG. 3 is configured to select a question from a plurality of questions in a memory. [Figure 4D] FIG. 4D shows a flow chart illustrating how the processor of the device shown in FIG. 3 is configured to select a question from a plurality of questions in a memory. [Figure 4E] FIG. 4E shows a flow chart illustrating how the processor of the device shown in FIG. 4A is configured to select a question from a plurality of questions in a memory. [Figure 4F] FIG. 4F shows a flow chart illustrating how the processor of the device shown in FIG. 3 is configured to select a question from a plurality of questions in a memory. [Diagram 5] FIG. 5 illustrates a neural network used by the processor of the device shown in FIG. 3 to provide a determination of one or more pelvic floor dysfunction symptoms or bladder symptoms. [Figure 6]FIG. 6 illustrates another embodiment of a method for determining one or more pelvic floor dysfunction or bladder symptoms of a patient using the device shown in FIG. [Figure 7A] FIG. 7A shows the conventional diagnostic and treatment pathway. [Figure 7B] FIG. 7B illustrates a diagnosis and treatment pathway according to the present invention.
[0037] Like reference numbers and designations in the various drawings indicate like elements. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0038] FIG. 1 illustrates a device 100 for determining a patient's pelvic floor dysfunction symptoms according to an embodiment of the present invention. The device 100 comprises a processor 105. The processor 105 is configured to receive patient data, in particular questionnaire data relating to one or more potential pelvic floor dysfunction symptoms of the patient, and patient behavioral data. In the illustrated embodiment, the device 100 comprises a data receiving module 110 through which the patient data is received by the processor 105, although this is not required. The processor 105 is further configured to determine the patient's one or more pelvic floor dysfunction symptoms based on the received patient data using a machine learning (ML) algorithm 115. In the illustrated embodiment, the ML algorithm 115 is or includes a neural network, although this is not required.
[0039] The processor 105 may be configured to perform the determination of one or more pelvic floor dysfunction symptoms on the user electronic device, via a server backend, or in a native application, on a web application on the user electronic device (e.g., a personal computer or smartphone). The apparatus 100 may be configured to generate a digital user interface for the user electronic device. The digital user interface may allow user input of patient data into the apparatus 100 (e.g., via a keyboard or touch screen) and / or may display output of the determination of one or more pelvic floor dysfunction symptoms by the processor 105.
[0040] 2 shows a method 200 for determining a patient's pelvic floor dysfunction symptoms, according to one embodiment of the present invention. Method 200 may be performed using device 100 described above.
[0041] Step 202 of method 200 comprises obtaining patient data, in particular questionnaire data and patient behavioral data relating to the patient's one or more potential pelvic floor dysfunction symptoms. Step 204 of method 200 comprises determining the patient's one or more pelvic floor dysfunction symptoms using a machine learning algorithm.
[0042] Figure 3 shows an apparatus 300 for assessing a patient's pelvic floor dysfunction symptoms according to another embodiment of the invention. The apparatus 300 comprises a processor 305 and a machine learning algorithm 315 as described above with respect to the apparatus 100 shown in Figure 1, with like reference numbers indicating like elements.
[0043] In the illustrated embodiment, the device 300 further comprises a memory 325. The memory 325 is configured to store a plurality of questions relating to a plurality of different pelvic floor dysfunction symptoms. The processor 305 is configured to select one or more symptom questions from the memory 325 for presentation to a user (e.g. via a digital user interface generated by the device 300, as described above) to obtain questionnaire data relating to the patient's one or more pelvic floor dysfunction symptoms.
[0044] Current methods for diagnosing pelvic floor dysfunction conditions utilize symptom-specific questionnaires. Because patients may have one or more of several possible symptoms, the clinical outcomes of such symptom-specific questionnaires may be less than ideal. Reliance on one subset of questionnaire questions may result in suboptimal sensitivity and specificity for the pelvic floor / bladder dysfunction being examined. Furthermore, many patients have two or more associated symptoms. Because each questionnaire is different for each symptom, patients with multiple symptoms must complete multiple questionnaires. Thus, evaluation of patients using multiple symptom-specific questionnaires can be time-consuming, inconvenient, and logistically challenging.
[0045] The memory 325 is configured to store a ranking of the plurality of symptoms in order of symptom prevalence. The processor 305 is configured to select a first question regarding the most common symptom (e.g., stress urinary incontinence, SUI).
[0046] The plurality of questions stored in the memory 325 relate to a plurality of different symptoms. The questions comprise clinically validated symptom-specific questions, particularly relating to quality of life, symptoms, bothersomeness index, and impact on quality of life. The questions are selected from one or more conventional clinically validated symptom-specific questionnaires, such as MESA (Medical, Epidemiological and Social Aspects of Age-Related Urinary Incontinence Questionnaire), POPDI (Pelvic Organ Prolapse Distress Inventory), PFDI (Pelvic Floor Distress Inventory), PGI-I (Patient Global Impression of Improvement), ICIQ-OAB (International Consultation on Incontinence Questionnaire Overactive Bladder), ICIQ-OAB-QOL (International Consultation on Quality of Life of Incontinence Questionnaire Overactive Bladder), QUID (Questionnaire for Urinary Incontinence Diagnosis), SARC-F (Strength, Walking, Chair Rising, Stair Climbing, Fall History), etc.
[0047] However, rather than presenting the user with all questions related to each of the multiple symptoms to obtain patient data, in the illustrated embodiment, the processor 305 is configured to select a next question based on the patient data received in response to the one or more preceding questions. The processor 305 is configured to determine whether the patient data received in response to the one or more preceding questions indicates a symptom associated with the one or more preceding questions. If the patient data does not indicate a symptom associated with the one or more preceding questions, the processor 305 is configured to select a next question related to one or more next most likely symptoms. The next most likely symptom may be the next most common symptom, which allows the most likely symptoms to be evaluated first to avoid obtaining potentially irrelevant data, although this is not required.
[0048] FIG. 4 shows a flowchart or algorithm 400 illustrating one example of how the processor 305 may be configured to select a next question based on patient data received in response to one or more previous questions.
[0049] Below are listed the questions that may be selected in flowchart 400 and the clinically validated questionnaires from which they are derived. It should be appreciated that in addition to or instead of the questions shown in flowchart 400, other questions from the same or other clinically validated questionnaires regarding pelvic floor dysfunction symptoms and / or bladder symptoms may be stored in memory 325.
[0050] MESA (presenting symptoms): 1. Does gentle coughing stop you from urinating? (SUI) 2. Do you find it difficult to urinate when you cough violently? (SUI) 3.Does sneezing stop you from urinating? (SUI) 4. Does lifting prevent you from urinating? (SUI) 5. Will bending it stop me from urinating? (ISD) 6. Does laughing make you stop urinating? (MUI) 7. Does brisk walking / jogging cause urinary retention? (ISD) 8. When you are constipated, does straining cause you to not be able to urinate? (SUI) 9. Do you lose urine flow when you stand up from a standing position? (ISD MUI) 10. Have you noticed that some people experience sudden, uncontrollable urination or near-elimination with little or no warning? How often does this happen? Never, rarely, sometimes, or often? (UUI) 11. If you cannot find a toilet or the toilet is empty and you feel the need to urinate, how often do you experience urinary retention or wet yourself? Never, rarely, sometimes, or often? (UUI) 12. Do you suddenly feel like your bladder is very full and are unable to urinate? (UUI) 13. Does washing your hands stop you from urinating? (UUI) 14. Do you stop urinating when it's cold? (UUI) 15. Do cold drinks cause you to stop urinating? (UUI)
[0051] POPDI: 1. Do you usually feel pressure in your lower abdomen? If yes, how bothersome is it (0-4)? 2. Do you usually feel a heaviness or dullness in your pelvic area? If yes, how bothersome is it (0-4)? 3. Do you usually see or feel any swelling or shedding in your vaginal area? If yes, how bothersome is it (0-4)? 4. Do you usually have to push around your vagina or rectum to have a bowel movement or complete a bowel movement? If yes, how bothersome is it (0-4)? 5. Do you usually experience the sensation that your bladder is not completely empty? If yes, how bothersome is it (0-4)? 6. Do you ever have to use your fingers to push up against the bulge in your vaginal area to initiate or complete urination? If yes, how bothersome is it (0-4)? 19. Do you usually find it difficult to empty your bladder? If yes, how bothersome is it (0-4)?
[0052] PGI-I: 1. Identify the number / choice that best describes how you are now after treatment compared to how you were before treatment (much better, much better, slightly better, no change, slightly worse, much worse, very worse).
[0053] ICIQ-OAB: 1. How often during the day do you urinate? 1-6, 7-8, 9-10, 11-12, 13 or more? How bothersome is this? Please ring a number from 0 (not at all) to 10 (a lot). 2. On average, how many times during the night do you have to get up to urinate? None, 1, 2, 3, 4, or more? How bothersome is this? Please ring a number from 0 (not at all) to 10 (a great deal). 3. Do you have to rush to the bathroom to urinate? Never, occasionally, sometimes, most of the time, all the time? How bothersome is this? Please ring a number from 0 (not at all) to 10 (very much). 4. Do you leak urine before you can get to the toilet? Never, occasionally, sometimes, most of the time, all the time? How bothersome is this? Please ring a number from 0 (not at all) to 10 (very much).
[0054] ICIQ-OAB-QoL (symptoms presented): 3. Have you carefully planned your trip? 4. Do you feel sleepy or drowsy during the day? (Nocturia) 5. Do you plan an “escape route” to a restroom in a public place? (urgency) 6.Are you suffering? 7. Were you annoyed? 8.Did you feel like there was something wrong? 9. Does it interfere with your sleep at night? (Nocturia) 10. Have you become less physically active? 11. Do you feel rested when you wake up in the morning? (Nocturia) 12. Are you frustrated with family or friends? 13. Did you have any fears or worries? 14. Are you spending more time at home than you thought you would? 15. Do you adjust your travel plans to always be near a toilet? (Urgency) 16. Have you started avoiding activities that are far from the toilet (walking, running, hiking, etc.)? (Urgency) 17. Have you ever felt frustrated or annoyed about the time you spent in the bathroom? (frequency) 18. Did you wake up while sleeping? (Nocturia) 19. Were you concerned about odors or hygiene? 20. When traveling with other people, have you had to stop to use the bathroom and felt uncomfortable? (How often) 21.Have your relationships with family and friends been affected? 22. Have you reduced your participation in social gatherings, such as parties or visits with family or friends? 23. Are you embarrassed? 24. Does it prevent you from getting the amount of sleep you need? (Nocturia) 25. Have you had problems with your partner or spouse? 26. Have you started planning your activities more carefully? 27. When you arrive somewhere new, do you find yourself immediately searching for the nearest toilet? (Urgency) 28. Overall, how much do your urinary symptoms interfere with your quality of life? Please rate from 0 (not at all) to 10 (a lot).
[0055] QUID (symptoms presented): Do you leak urine (even a small amount), wet your body, or wet your napkins or underwear when: 1. What should I do when I cough or sneeze? (SUI) 2. What should I do when bending over or lifting something? (SUI / ISD) 3. When you walk briskly, jog, or exercise? (SUI) 4. While you are undressing to go to the toilet? (UUI) 5. Do you have a very strong and unpleasant urge to urinate, causing you to leak urine (even a small amount) before you can get to the toilet? (UUI) 6. Do you have a sudden, strong need to urinate and have to rush to the bathroom? (urgency) Each question is scored from 0 to 5: 0=never, 1=seldom, 2=sometimes, 3=frequently, 4=most of the time, and 5=all of the time. The scores for questions 1, 2, and 3 are summed for a stress score, and the scores for questions 4, 5, and 6 are summed for a urgency score.
[0056] SARC-F: 1. How difficult is it to cross a room? 2. How difficult is it to climb one flight of stairs (10 steps)? 3. How many falls have you had in the past year? 4.How difficult is it to lift or carry a 10 pound (4.5 kg) load? 5. How difficult is it to transfer from a chair to a bed? Each question is scored from 0 to 2, with 0=none, 1=some, and 2=a lot / use of aids or no use of aids.
[0057] In FIG. 4A, QUID1 is asked as the initial question of algorithm 400. If the answer to QUID1 is greater than one (>1), the next step of algorithm 400 is shown in FIG. 4E, where a dotted line is used to indicate the next step not shown in FIG. 4A. If the answer to QUID1 is less than or equal to one (≦1), the next question is ICIQ OAB3. If the answer to ICIQ OAB3 is never or occasionally, the next step of algorithm 400 is shown in FIG. 4E. If the answer to ICIQ OAB3 is sometimes or more frequently than sometimes (e.g., most of the time, all the time), QUIDs 6, 4, and 5 are asked and all three must be answered. A total score for QUIDs 6, 4, and 5 is then calculated. Each QUID question has six possible answers. Each possible answer is assigned a value of 0, 1, 2, 3, 4, or 5 (the lowest value / severity answer to each question is assigned a value of 0 and the highest value / severity answer is assigned a value of 5). If the total score is 3 or less, the next step of algorithm 400 is shown in FIG. 4E. If the total score is greater than 3, the score for QUID4 is confirmed. If the score for QUID4 is greater than 1, an initial label of UUI (urge urinary incontinence) is applied to the patient. If the score for QUID4 is 1 or less, the score for QUID5 is confirmed. If the score for QUID5 is greater than 1, an initial label of UUI is applied to the patient. If the score for QUID5 is 1 or less, an initial label of OAB (overactive bladder) is applied to the patient. If an initial label of OAB or UUI is applied, the next step of algorithm 400 is shown in FIG. 4B.
[0058] After an initial label of OAB or UUI is applied to the patient, FIG. 4B shows that ICIQ OAB3, 2, 1 are asked and all three are answered. ICIQ OAB3, 2, and 1 may be used to further refine the initial label of OAB or UUI. If none of the answers to ICIQ OAB3, 2, and 1 exceed a threshold, the next step of the algorithm 400 is shown in FIG. 4C. If the answers to one or more of ICIQ OAB3, 2, and 1 exceed a threshold (e.g., more than sometimes for ICIQ OAB3, greater than 2 (>2) for ICIQ OAB2, greater than 7 (>7) for ICIQ OAB1, although a different threshold may be used instead), the bothersome score of the associated question is checked. If the bothersome score does not exceed a threshold (e.g., greater than 4 (>4), although a different threshold may be used), the next step of the algorithm is shown in FIG. 4C. If only one bothersome score exceeds the threshold, the initial label of OAB or UUI applied to the patient is checked and updated to include one of urgency, nocturia, or frequency corresponding to the bothersome score exceeding the threshold (e.g., to indicate the primary symptom associated with the patient's OAB or UUI). If multiple bothersome scores exceed the threshold, the bothersome scores are compared to each other. If the bothersome scores are not equal, the highest bothersome score is selected and the initial label of OAB or UUI is confirmed and updated to include one of urgency, nocturia, or frequency corresponding to the highest bothersome score. If the bothersome scores are equal, the bothersome scores are selected in the order of priority: urgency, frequency, nocturia. The bothersome score that exceeds the threshold and corresponds to the highest priority is selected and the initial label of OAB or UUI is confirmed and updated to include one of urgency, nocturia, and frequency corresponding to the selected bothersome score. The next step of the algorithm 400 after updating the initial label applied to the patient is shown in FIG. 4F.
[0059] In FIG. 4C, POPDI 3, 6, and 5 are asked and all three must be answered. If none of POPDI 3, 6, and 5 are answered "yes", the next step of algorithm 400 is shown in FIG. 4D. If one or more of POPDI 3, 6, and 5 are answered "yes", the bother scores of POPDI 3, 6, and 5 are confirmed. If any of POPDI 3, 6, and 5 bother scores exceed a threshold (e.g., greater than (>2), although other thresholds may be used), the initial label of OAB or UUI is confirmed and updated to include POP (pelvic organ prolapse). If none of POPDI 3, 6, and 5 bother scores exceed a threshold, a check is performed to determine whether POPDI 5 is answered "yes" and POPDI 3 and 6 are answered "no". If the check is positive, no further questions are asked and the updated label of overflow VD (voiding dysfunction) is applied. If the verification is negative, the next step of the algorithm 400 is shown in FIG. 4D.
[0060] In Figure 4D, the patient's age is requested. If the patient is under 60 years old, no further questions are asked. If the patient is over 60 years old, SARC-F1 is asked. If the answer to SARC-F1 is 1 or greater, no further questions are asked and the updated label for the feature UI (urinary incontinence) is applied. If the answer to SARC-F1 is 0, the next SARC-F question is asked. If the answer to the subsequent SARC-F question is 1 or greater, no further questions are asked. If the answer to the subsequent SARC-F question is 0, the next SARC-F question is asked and so on until either the answer to the subsequent SARC-F question is 1 or greater (in which case no further questions are asked and the updated label for the feature UI is applied) or until the answers to all SARC-F questions are 0 (in which case no further questions are asked and the updated label for the overflow VD is applied).
[0061] Following one of the three branches leading from FIG. 4A to FIG. 4E (see FIG. 4A), in FIG. 4E, QUID6 is asked. If the answer to QUID6 is greater than one (>1), QUIDs 4 and 5 are asked and both are answered. Then, scores are obtained for QUIDs 1, 6, 4, and 5. If the total score of QUIDs 6, 4, and 5 (related to UUI) is greater than the score of QUID1 (related to SUI), an initial label of MUI / UUI (mixed, predominantly urge incontinence) is applied. If an initial label of MUI / UUI is applied, the next step of algorithm 400 is shown in FIG. 4F. If the total score of QUIDs 6, 4, and 5 is less than the score of QUID1, an initial label of MUI / SUI (mixed, predominantly stress incontinence) is applied. If the initial label of MUI / SUI is applied, no further questions are asked.
[0062] If QUID6 is answered ≤ 1, then QUID3 and 2 are asked and both must be answered. If both QUID3 and 2 are answered ≤ 1, then no further questions are asked and the initial label of "unknown" is applied. If one or both of QUID3 and 2 are answered > 1, then the patient's age is requested. If the patient is 60 years of age or older, then no further questions are asked and the label of SUI ISD (predominant stress urinary incontinence with risk factors for intrinsic sphincter deficiency) is applied. If the patient is under 60 years of age, then the patient is asked if he or she has had previous UI (urinary incontinence) surgery. If the patient has had previous UI surgery, then no further questions are asked and the initial label of SUI ISD is applied. If the patient has not had previous UI surgery, then no further questions are asked and the initial label of SUI is applied.
[0063] Any of the question branches shown in Figures 4A through 4E that provide an initial label including OAB, UUI, or MUI / UUI lead to Figure 4F. In Figure 4F, an overall ICIQ OAB score is determined for the ICIQ OAB questions in each branch. There are five possible answers to each ICIQ OAB question. Each possible answer is assigned a value of 0, 1, 2, 3, or 4 (the lowest value / intensity answer to each question is assigned a value of 0 and the highest value / intensity answer is assigned a value of 4), with a total possible score of 16 for the four questions. The bothersomeness score is not taken into account in determining the overall ICIQ OAB score. If the overall ICIQ OAB score for the answered questions is less than or equal to 3 (≦3), no further questions are asked. If the overall ICIQ OAB score is greater than 3 (>3), the ICIQ OAB QoL questions are asked. In the algorithm 400, ICIQ OAB QoL 3, 6-8, 10, 12-14, 19, 21-23, and 25 are asked and must all be answered. Then, ICIQ OAB QoL 5, 15, 16, and 27 (hereafter referred to as urgency QoL questions) are asked and must all be answered. The answers to the urgency QoL questions are combined to generate a score that is compared to a threshold. There are six possible answers to each ICIQ OAB QoL (never, a little, sometimes, quite a bit, most of the time, all of the time). Each possible answer is assigned a value of 1, 2, 3, 4, 5, or 6 (the least severe answer to each question is assigned a value of 1, and the most severe answer is assigned a value of 6). Thus, the maximum possible score for the urgency QoL questions combined is 24. For example, the threshold is a score of 12 out of 24, although a different threshold may be used instead. Next, ICIQ OAB QoL 4, 9, 11, 18, and 24 (hereafter referred to as the nocturia QoL questions) are asked and must be answered in full. The responses to the nocturia QoL questions are combined to generate a score that is compared to a threshold (e.g., 15 out of a possible 30). Next, ICIQ OAB QoL 17 and 20 (hereafter referred to as the frequency QoL questions) are asked and must be answered in full.The responses to the frequency QoL questions are taken together to generate a score that is compared to a threshold (e.g., 6 out of 12). A total score for the ICIQ OAB QoL questions asked is then calculated, at which point the branch of algorithm 400 ends and no further questions are asked. A check is then performed to see if the total score for any of the urgency QoL questions, nocturia QoL questions, and frequency QoL questions is equal to or greater than the respective threshold. If no, the label provided before answering the ICIQ OAB QoL questions is maintained. If yes, a check is performed to see how many of the urgency QoL questions, nocturia QoL questions, and frequency QoL questions have a total score equal to or greater than the threshold. If the total score for only one of the urgency QoL questions, nocturia QoL questions, and frequency QoL questions is equal to or greater than the respective threshold, the label is updated to include either urgency, nocturia, or frequency. If the sum scores of two or more of the urgency QoL questions, nocturia QoL questions, and frequency QoL questions are equal to or greater than their respective thresholds, the relative sum scores of each group of questions are compared. For example, 18 out of 24 (18 / 24 or 3 / 4) for the urgency QoL questions is relatively higher than 20 out of 30 (20 / 30 or 2 / 3) for the nocturia QoL questions, even though the absolute score is higher for nocturia. If the relative sum scores are unequal, the label is updated to include only the one of urgency, frequency, and nocturia with the highest relative sum score. If the relative sum scores are equal for two or more of urgency, frequency, and nocturia, the scores are ranked in the order urgency, frequency, and nocturia, and the label is updated to include the one with the highest rank for urgency, frequency, and nocturia.
[0064] As can be seen from the flowchart or algorithm 400, the processor 305 is configured to present the user with a series of clinically validated questions related to one or more pelvic floor dysfunction symptoms or bladder symptoms that are optimal based on the answers to one or more preceding questions. In the illustrated embodiment, the processor 305 is configured to do so using pre-programmed branching logic, for example according to the flowchart 400 described above, although this is not required. This allows one or more pelvic floor dysfunction symptoms or bladder symptoms to be determined with the fewest number of questions, and can increase the sensitivity and specificity of the determination with fewer questions and less irrelevant data.
[0065] The processor 305 is configured to provide a determination of one or more symptoms based on the obtained patient questionnaire data using a machine learning algorithm 315. In the illustrated embodiment, the machine learning algorithm 315 is or comprises a neural network, although other machine learning algorithm structures may alternatively be used.
[0066] When a branch of the algorithm 400 ends and no further questions are asked, the answer to the question asked in the selected branch is input to the machine learning algorithm. It can also be seen that some branches of the algorithm end with a label (e.g., overflow VD, functional UI, etc.). When the machine learning algorithm 315 is not available (e.g., before the machine learning algorithm 315 is trained for the intended purpose), the label may serve as a preliminary diagnosis or initial determination based on the answers provided to the clinically validated questions in the algorithm 400. The label may be based on a clinical evaluation of previous patient responses to symptom-specific questionnaires. If the label is followed by a recommendation for further workup, the preliminary diagnosis or initial determination may indicate a more invasive medical procedure than the questionnaire required to confirm or provide sufficient information for an accurate diagnosis (e.g., urodynamics, etc.).
[0067] An embodiment of the machine learning algorithm 315 is shown in more detail in FIG. 5. In the illustrated embodiment, the machine learning algorithm 315 is a neural network comprising multiple layers, neurons, and connections. The neural network comprises an input layer or primary layer 316 comprising multiple neurons 316a. Each possible answer to a question selected by the processor 305 to be asked of the user is represented by a separate neuron 316a. The primary layer 316 may further comprise additional neurons 316a representing behavioral data inputs (described further below) and may also comprise additional neurons 316a representing physiological data inputs (e.g., the patient's measured pelvic floor strength). The number of neurons in the primary layer 316 may vary depending on the number of possible questions and / or behavioral data inputs, possible branching of questions during selection of the next question by the processor 305, etc. Each neuron 316a is assigned an activation value A ranging from 0 to 1 (e.g., to two decimal points). The neuron activation value is specified by the question answers and / or behavioral data inputs that are pre-determined based on the likelihood of exhibiting a symptom. The particular neuron activation values shown in FIG. 5 are for illustrative purposes only and do not represent answers to the questions posed in algorithm 400 above.
[0068] The primary layer 316 is connected to a secondary or hidden layer 318 by a series of connections 317, although the neural network may alternatively comprise multiple secondary or hidden layers 318. The number of hidden layers and the number of neurons in each hidden layer may be determined by the variability of the acquired data set, and each hidden layer 318 may comprise multiple neurons 318a. The connections 317 between the neurons 316a of the primary layer 316 and the neurons 318a of the hidden layer 318 are each assigned a weight W (which may be positive or negative) indicating the level of importance of the primary layer neuron 316a to the diagnosis of the condition. The particular weights shown in FIG. 5 are for illustrative purposes only. In the illustrated embodiment, each neuron 316a of the primary layer 316 is connected to each neuron 318a of the hidden layer 318, although this is not required.
[0069] The activation value of a neuron 318a in the hidden layer 318 is then calculated by multiplying the weighted sum of the activation values of each neuron 316a in the primary layer 316 by the weight W of the respective connection to the neuron 318a in the hidden layer 318 (e.g., W1·A1+W2·A2+W3·A3+···WN·AN, where A represents the activation value of the Nth neuron 316a in the primary layer 316 and W represents the weight of the connection between the Nth neuron 316a in the primary layer 316 and the target neuron 318 in the hidden layer 318).
[0070] An activation function is then applied to the weighted sum to generate an activation value for neuron 318a having a value between 0 and 1. In the illustrated embodiment, a sigmoid function (S(x)=1 / (1+e^(-X)) is used as the activation function, as shown below:
[0071] S(x)·(W1·A1+W2·A2+W3·A3+···WN·AN)
[0072] It should be appreciated that other activation functions, such as a step function, a linear function, a hyperbolic tangent function, a ReLU function, a Leaky ReLU function, a SoftMax function, a Swish self-gating function, etc. may be used instead.
[0073] To increase the sensitivity of the neural network, a bias value B may be added to the above calculation for each neuron 318a of the hidden layer 318, as shown below.
[0074] S(x)·(W1·A1+W2·A2+W3·A3+···WN·AN+B)
[0075] The weights W and bias values B determine the function of the neural network 315 as a whole.
[0076] In the illustrated embodiment, the hidden layer 318 connects to the output layer 320 via a series of weighted connections, also as described above. The output layer 320 comprises a number of neurons 320a. Each neuron 320a in the output layer 320 represents a different symptom determination or classification, including but not limited to stress urinary incontinence, prolapse, overactive bladder, etc. The number of neurons 320a in the output layer 320 may depend on the number of symptoms the neural network is configured or trained to determine. In the illustrated embodiment, the output layer 320 comprises 14 neurons 320a (only three shown), each representing a different symptom -SUI ISD, SUI, MUI / SUI, MUI / UUI, OAB urgency, UUI urgency, OAB nocturia, UUI nocturia, OAB frequency, UUI frequency, OAB POP, UUI POP, overflow VD, functional UI. The neurons 320a in the output layer 320 with the highest activation levels correspond to the pelvic floor dysfunction or bladder symptoms that the neural network determines the patient is most likely to suffer from. For example, in the example shown in Figure 5, the neuron 320a corresponding to UUI urgency has the highest activation value, indicating that UUI urgency is the symptom the patient is most likely to suffer from.
[0077] In addition to the questionnaire data, the patient data may include behavioral data. For example, the behavioral data may include metrics such as the amount of fluid ingested (e.g., in L or mL), the amount of fluid voided (e.g., in L or mL), the amount of caffeine consumed (e.g., in mg), the amount of alcohol consumed (e.g., in units), the number of incontinent episodes, the number of nocturia episodes, the number of bladder empties, and the number of incontinent episodes associated with urgency. Each behavioral metric of interest may be represented by a separate neuron 316a in the primary layer 316, as described above with respect to possible question answers.
[0078] By constructing the primary layer 316 of the neural network as described above, the neural network 315 can provide a determination of one or more pelvic floor dysfunction symptoms or bladder symptoms based on questionnaire data, behavioral data, or both (and optionally also based on physiological data in combination with questionnaire data and / or behavioral data, if available). This allows the device 300 to provide a determination of one or more symptoms even with incomplete patient data or different subsets of data for each patient. Furthermore, in conjunction with the processor 305 configured to select questions based on patient data received in response to one or more preceding questions, the device 300 can be configured to improve efficiency and accuracy of decisions by providing the neural network 315 with information most relevant to each patient (irrelevant information is reduced or removed).
[0079] This may enable device 300 to provide an initial determination at a first time (e.g. based on questionnaire data) and then provide an updated or verifying determination at a second time (e.g. based on behavioral data and optionally additional / repeated questionnaire data). Thus, device 300 may be particularly suitable for longitudinal (e.g. repeated) monitoring and determination of one or more pelvic floor dysfunction or bladder symptoms.
[0080] The neural network 315 is trained to provide a decision by adjusting weights and bias values within the neural network 315 to achieve an accurate decision. In the illustrated embodiment, the neural network 315 is trained using backpropagation, which uses gradient descent to reduce the value of a cost function, although this is not required.
[0081] The training data used to train the network comprises patient questionnaire data, behavioral data, and corresponding decisions or diagnoses for each of a plurality of patients. This allows the neural network to be trained on a large data set (taking into account population-level results) to increase the accuracy of the decisions provided to new patients. Additionally, the training data may be augmented for each new patient for which the device 300 is used to provide a decision. By training the neural network using the patient data received for each new patient and an external decision or diagnosis based on that patient data (e.g., not determined by the device 300), the neural network may be continually updated and improved based on an increasingly large training data set over time. In this way, the neural network may be configured to adjust and provide more accurate decisions rather than maintaining a fixed approach as in conventional diagnostic approaches to pelvic floor dysfunction symptoms or bladder symptoms.
[0082] 6 shows a method 500 for determining a patient's pelvic floor dysfunction symptoms or bladder symptoms according to another embodiment of the invention. The method 500 may be performed using the device 300 described above and will be described with reference thereto.
[0083] Step 502 of method 500 comprises obtaining or receiving patient questionnaire data, for example using device 300 as described above with respect to flowchart 400. The questionnaire data may include personal and / or demographic patient data, as well as patient data related to pelvic floor dysfunction symptoms or bladder symptoms. Device 300 is configured to generate (e.g. using processor 305) a digital patient interface for a user electronic device, as described above, through which a user may input patient data into device 300. In the illustrated embodiment, device 300 is also configured to generate (e.g. using processor 305) a digital physician interface that may display a determination of one or more pelvic floor dysfunction symptoms or bladder symptoms to a physician.
[0084] Step 504 of method 500 comprises providing an initial determination of one or more pelvic floor dysfunction symptoms or bladder symptoms based on the received patient data, the initial determination being provided using a machine learning algorithm, for example via the neural network 315 of the processor 305 as described above.
[0085] Step 506 comprises delivering an initial treatment program to the patient. In the illustrated embodiment, the initial treatment program is delivered to the patient in the form of video and / or audio content via a digital patient interface on the user electronic device. In the illustrated embodiment, the initial treatment program is common to every patient, regardless of which symptom or symptoms the initial decision relates to. The initial treatment program is designed to encourage patient engagement and may include tasks, assignments and classes. The initial treatment program is delivered for a first period of time. In the illustrated embodiment, the first period of time comprises one week, although this is not required and the initial treatment program may comprise a shorter or longer period of time.
[0086] At least a portion of the initial treatment program comprises inputting patient behavioral data via a digital patient interface (e.g., completing a bladder diary that includes recording daily fluid intake and toilet visits).
[0087] Step 508 of method 500 comprises providing a first updated determination of one or more pelvic floor dysfunction symptoms or bladder symptoms based on the received patient data. The first updated determination is provided using a machine learning algorithm, for example via the neural network 315 of the processor 305 as described above. In the illustrated embodiment, the first updated determination is based on patient behavioral data provided or input during the initial treatment program. Alternatively, the first updated determination may be based on both the patient behavioral data and further questionnaire data. The further questionnaire data may be obtained, for example, using the device 300 as described above with respect to flowchart 400. However, the further questionnaire data may not include data that is not directly related to personal and / or demographic patient data, to avoid repeated collection of patient data that does not change.
[0088] In either case, the first updated determination may verify or confirm the initial determination or provide a different determination depending on the additional patient data received. For example, the patient's behavioral data (and optionally further questionnaire data) may match the questionnaire data provided in connection with the initial determination, in which case the first updated determination may verify the initial determination. Alternatively, the behavioral data (and optionally further questionnaire data) may at least partially not match the questionnaire data provided in connection with the initial determination, in which case the first updated determination may provide a different, more relevant determination of one or more symptoms for the patient.
[0089] The flexibility of the neural network 315 to receive patient questionnaire and / or behavioral data may enable the same approach and device 300 to provide an efficient, rapid and accurate re-evaluation of the initial determination. As more patient data is collected, the device 300 may be able to rapidly respond to new or changing patient data to provide an updated determination of one or more pelvic floor dysfunction symptoms or bladder symptoms, allowing for selection of an appropriate and / or treatment program for future patients.
[0090] The first updated determination may be displayed to the physician on the digital physician interface, as described above. This may significantly reduce the physician's workload of having to manually make a determination based on the received patient data, reducing the efficiency, speed, and possibly accuracy of the determination. Optionally, the processor 305 may be configured to determine a recommended workup (e.g., urodynamic testing for determining SUI ISD, pelvic exam for determining OAB / UUI POP, postvoid residual and uroflowmetry for determining overflow VD, or further tests such as frailty testing for determining functional UI) and / or a targeted treatment program corresponding to one or more symptoms of the first updated determination, which may also be displayed on the digital physician interface. This may further reduce the burden on the physician. The raw questionnaire data and / or behavioral data may be available for display to the physician on the digital physician interface, if desired.
[0091] Step 510 of the method 500 comprises delivering to the patient a first targeted treatment program corresponding to the first updated determination. The device 300 is configured to determine the first targeted treatment program based on the first updated determination. The first targeted treatment program is delivered to the patient in the form of video and / or audio content via a digital patient interface on the user electronic device as described above. The first targeted treatment program is delivered over a second period of time. In the illustrated embodiment, the second period of time is four weeks, but this is not required and the first targeted treatment program may comprise a shorter or longer period of time. The second period of the first targeted treatment program may be or may comprise a longer period of time than the first period of the initial treatment program.
[0092] The first targeted treatment program includes appropriate treatment content related to one or more symptoms of the first updated determination. For example, for each of the one or more symptoms, there may be a pool of treatment approaches from which the first targeted treatment program can be constructed. The pool of treatment approaches comprises a plurality of treatments. The treatments may be combined in various orders and / or combinations to provide a targeted treatment program for each symptom. To further tailor the treatment program, the amount and / or intensity of each selected treatment may be modified depending on the symptom. Some treatments may be universal for all symptoms, while others may be specific for only a selected number of symptoms (e.g., one, two, three symptoms, etc.). The flexibility may make it possible to simply and easily tailor the first targeted treatment program to the symptoms of the first updated determination and provide an individualized patient treatment plan as needed. The combination of treatments and treatment amounts / intensities of the first targeted treatment program may be pre-determined for each symptom.
[0093] For a first targeted treatment program lasting four weeks, the combination of treatments and / or the amount or intensity of one or more of the treatments may vary each week of the four weeks, allowing the patient to work with each combination of treatments long enough to alleviate symptoms while also allowing for continued progression to treatments that are increasingly relevant to the particular condition.
[0094] The treatment may include informational or educational content to help the patient better understand their condition and align to a targeted treatment program, for example, providing background on a particular treatment approach or details regarding bladder anatomy and / or bladder symptoms. The treatment may include tasks or exercises (completed by the patient) aimed at alleviating symptoms of one or more symptoms of the first updated determination and / or gathering further data from the patient (e.g., behavioral data and / or questionnaire data).
[0095] At least a portion of the first targeted treatment program comprises inputting patient behavioral data via a digital patient interface (e.g., completing a bladder diary including recording daily fluid intake and toilet visits).
[0096] Step 512 of method 500 comprises providing a second updated determination of one or more pelvic floor dysfunction symptoms or bladder symptoms based on the received patient data. The second updated determination is provided using machine learning algorithm 315, for example via a neural network in processor 305 as described above. In the illustrated embodiment, the second updated determination is based on patient behavioral data provided or input during the first targeted treatment program. Alternatively, the second updated determination may be based on both patient behavioral data and further questionnaire data. The further questionnaire data may be obtained, for example, using device 300 as described above with respect to flowchart 400. The further questionnaire data may also include responses to a PGI-I (Patient Global Impression of Improvement) question, which provides feedback regarding the patient's impression of how the first targeted treatment program improved their symptoms. However, to avoid repeated collection of unaltered patient data, the further questionnaire data may not include data that is not directly related to personal and / or demographic patient data.
[0097] In either case, the second updated determination may verify or confirm the initial determination or the first updated determination, or provide a different determination, depending on the additional patient data received. For example, the patient's behavioral data (and optionally further questionnaire data) may indicate that the first targeted treatment program is effective in improving the symptoms of one or more symptoms of the first updated determination. The second updated determination may therefore validate the previous determination. Alternatively, the behavioral data (and optionally further questionnaire data) may indicate that the first targeted treatment program was ineffective in improving the symptoms of one or more symptoms of the first updated determination. The second updated determination may therefore provide a different, more relevant determination of the patient's one or more symptoms.
[0098] The second updated determination may be displayed to the physician on the digital physician interface, as described above. The processor 305 may also be configured to determine a recommended workup and / or targeted treatment program corresponding to one or more symptoms of the second updated determination, which may also be displayed on the digital physician interface, as described above. The raw questionnaire data and / or behavioral data may be utilized for display to the physician on the digital physician interface, as desired.
[0099] Step 514 of the method 500 comprises delivering a second targeted treatment program to the patient, the second targeted treatment program corresponding to the second updated determination. The device 300 is configured to determine the second targeted treatment program based on the second updated determination. The second targeted treatment program is delivered to the patient in the form of video and / or audio content via a digital patient interface on the user electronic device, as described above. The second targeted treatment program is delivered over a third period of time. In the illustrated embodiment, the third period of time is four weeks, although this is not required and the second targeted treatment program may comprise a shorter or longer period of time. The third period of the second targeted treatment program may be or may comprise a longer period of time than the first period of the initial treatment program or the second period of the first targeted treatment program.
[0100] The second targeted treatment program may be constructed in a manner substantially similar or identical to the first targeted treatment program. For example, if the second updated assessment is substantially similar or identical to the first updated assessment, it may indicate that the first updated assessment is correct and the first targeted treatment program was appropriate for the patient. Therefore, it may be beneficial for the patient to continue the same or similar treatment approach (e.g., proceed to increasingly relevant treatments and / or treatment doses / intensities) in the second targeted treatment program to improve symptoms.
[0101] In contrast, if the second updated assessment is different from the first updated assessment, it may indicate that the first updated assessment is incorrect and the first targeted treatment program was not appropriate for the patient (e.g., the patient's symptoms did not improve or may even worsen). Therefore, it may be beneficial for the patient to switch to a different treatment approach (e.g., a different combination of treatments and / or treatment dose / intensity) that is more suitable for the symptoms of the second updated assessment in the second targeted treatment program to improve symptoms.
[0102] At least a portion of the second targeted treatment program comprises inputting patient behavioral data via a digital patient interface (e.g., completing a bladder diary including recording daily fluid intake and toilet visits).
[0103] Step 516 of method 500 comprises providing a final determination of one or more pelvic floor dysfunction symptoms or bladder symptoms based on the received patient data. The final determination is provided using a machine learning algorithm, for example via the neural network 315 of the processor 305 as described above. In the illustrated embodiment, the final determination is based on patient behavioral data provided or input during the second targeted treatment program. Alternatively, the final determination may be based on both the patient behavioral data and further questionnaire data. The further questionnaire data may be obtained, for example, using the device 300 as described above with respect to the flowchart 400. The further questionnaire data may also include answers to PGI-I (Patient Global Impression of Improvement) questions, which provide feedback regarding the patient's impression of how the first targeted treatment program improved his or her symptoms. However, to avoid repeated collection of unaltered patient data, the further questionnaire data may not include data that is not directly related to the personal and / or demographic patient data.
[0104] In either case, the final determination may verify or confirm the previous determination depending on the additional patient data received. For example, the patient's behavioral data (and optionally further questionnaire data) may match the questionnaire data and behavioral data provided in relation to the previous determination and may indicate that the second targeted treatment program was effective in improving the symptoms of one or more symptoms of the second updated determination, in which case the final determination may verify the previous determination. Alternatively, the behavioral data (and optionally further questionnaire data) may not at least partially match the questionnaire data and behavioral data provided in relation to the previous determination and may indicate that the second targeted treatment program is not effective in improving the symptoms of one or more symptoms of the second updated determination. If so, the final determination may provide a different, more relevant determination of the patient's one or more symptoms.
[0105] The second updated determination may be displayed to the physician on the digital physician interface, as described above. The processor 305 may also be configured to determine a recommended workup and / or targeted treatment program corresponding to one or more symptoms of the second updated determination, which may also be displayed on the digital physician interface, as described above. The raw questionnaire data and / or behavioral data may be utilized for display to the physician on the digital physician interface, as desired.
[0106] The described method 500 shows how the device 300 allows for efficient, streamlined, and frequent determination of one or more pelvic floor dysfunction symptoms or bladder symptoms, thereby improving the speed and accuracy of diagnosis of such symptoms. The device 300 also allows for efficient data collection (e.g., using the flowchart 400 and entering patient data via a digital patient interface) that reduces or eliminates unnecessary data. The device 300 also allows for a fast and accurate determination of one or more symptoms using machine learning algorithms 315 (e.g., neural networks) where the most relevant patient data is provided. The use of machine learning algorithms such as neural networks can also validate subjective patient questionnaire data using both patient behavioral data and population-based data from large sample sets, further improving the accuracy of the determination. The device 300 allows the physician to rapidly react to changes in patient data to assess whether symptoms are improving, stable, or worsening (indicating whether the current treatment program is adequate), thereby enabling rapid modification of treatment as needed, increasing the chances of preventing further progression of the condition.
[0107] 7A and 7B illustrate the improvement in speed and accuracy of determining one or more pelvic floor dysfunction symptoms or bladder symptoms using the device 300 and / or method 500 described above.
[0108] FIG. 7A shows a conventional pathway for the diagnosis and treatment of pelvic floor dysfunction symptoms or bladder symptoms. The initial evaluation and determination of symptoms are performed at the first physician's examination 1, and the first treatment program is provided. If the first treatment program is not successful, a modified treatment program is provided for the same symptoms. If no improvement is seen following the modified treatment program, indicating that the initial determination was inaccurate (which is common because the diagnosis of these symptoms is complex), the process is restarted at the second physician's examination 2. Since the post-table determination in each physician's examination is usually based only on questionnaire data, the iteration period or time I between each diagnosis and / or treatment decision often becomes important (usually several months or more).
[0109] FIG. 7B shows a pathway for the diagnosis and treatment of pelvic floor dysfunction symptoms or bladder symptoms using the apparatus 300 and / or method 500. The initial evaluation and determination of symptoms are performed at the first physician's examination 1, as in the conventional pathway. However, in contrast to the conventional pathway, each diagnosis and / or treatment decision is based not only on the patient's subjective questionnaire data, but also on population-based data (by using a trained machine learning algorithm) and behavioral data. This allows the quality (e.g., accuracy and efficiency) of each diagnosis and / or treatment decision to be improved by validating the patient questionnaire data with two additional data sources compared to the conventional pathway. Also, with the improved quality of the determination, instead of continuing with a second-best or inaccurate determination and treatment approach for an inaccurate diagnosis (due to lack of additional data) and then restarting the determination and treatment process from the beginning later, rapid changes in the determination and / or treatment approach at various points during the treatment process become possible.
[0110] Therefore, the pathway of FIG. 7B offers the following advantages compared to the conventional pathway shown in FIG. 7A. · Reduction in the overall time t << T to achieve an accurate determination or diagnosis of one or more pelvic floor dysfunction symptoms or bladder symptoms. · Reduction in the number of iterations i << I between diagnosis and / or treatment decisions. · A decrease in the number n << N of diagnostic and / or treatment decisions. · A higher decision quality qn >> Qn of diagnostic and / or treatment decisions
[0111] Upon reading this disclosure, other variations and modifications will be apparent to those skilled in the art. Such variations and modifications are already known in the technical field of the identification of pelvic floor and bladder dysfunction and may include equivalent features and other features that can be used instead of, or in addition to, the features already described herein.
[0112] The appended claims are directed to specific combinations of features, but the scope of the disclosure of the present invention includes new features or new combinations of features, or generalizations thereof, whether explicitly or implicitly disclosed herein, regardless of whether they are related to the same invention currently claimed in any claim or whether they alleviate some or all of the same technical problems as the present invention.
[0113] Features described in the context of separate embodiments may be provided in combination in a single embodiment. Conversely, various features described in relation to a single embodiment for the sake of brevity may be provided individually or in any suitable sub - combination. The applicant hereby notifies that during the examination of this application or further applications derived therefrom, new claims may be formulated for such features and / or combinations of such features.
[0114] For the sake of completeness, the term "comprising" does not exclude other elements or steps, the term "a" or "an" does not exclude a plurality, a single processor or other unit may perform the functions of several means recited in the claims, and any reference signs within the claims shall not be construed as limiting the scope of the claims.
Claims
1. 1. An apparatus for assessing pelvic floor dysfunction symptoms in a patient, comprising:
1. A processor comprising: receiving patient data, the patient data including at least one of questionnaire data and behavioral data of the patient; using a machine learning algorithm to provide a determination of one or more pelvic floor dysfunction symptoms for said patient based on the received patient data; An apparatus comprising a processor configured to:
2. The apparatus of claim 1 , wherein the machine learning algorithm is or includes a neural network.
3. 3. The apparatus of claim 2, wherein the neural network comprises an input layer comprising a plurality of neurons, each different possible question answer or behavioral data metric corresponding to a different neuron.
4. The machine learning algorithm comprises: providing an initial determination of one or more symptoms based on the first received questionnaire data; 4. The apparatus of claim 1, configured to provide an updated or verifying determination of one or more symptoms based at least on the behavioral data received at a second time after the first time, and optionally based on the behavioral data and questionnaire data received at the second time.
5. The apparatus of any one of claims 1 to 4, wherein the processor is further configured to train or update the machine learning algorithm based on the received patient data.
6. a memory configured to store a plurality of questions related to a plurality of different symptoms; The processor further comprises:
6. The apparatus of claim 1, configured to select one or more symptom questions for presentation to a user, the next question being selected based on patient data received by the processor in response to one or more previous questions.
7. the memory is configured to store a ranking of the symptoms in order of symptom prevalence; The apparatus of claim 6 , wherein the processor is configured to select an initial question related to a most common symptom.
8. The processor, determining whether the patient data received in response to the one or more preceding queries is indicative of one or more symptoms associated with the one or more preceding queries; If the patient data does not indicate a symptom associated with one or more preceding questions, then selecting a next question associated with the next most likely symptom.
8. The device according to claim 6 or 7, configured so as to
9. 9. The apparatus of claim 6, wherein the processor is configured to select the next question using branching logic, optionally the branching logic being predetermined.
10. 10. The device of claim 1, wherein the behavioral data includes one or more of the following: amount of fluid ingested, amount of caffeine consumed, amount of alcohol consumed, number of incontinence episodes, number of nocturia episodes, number of empty bladder, and number of incontinence episodes with urgency.
11. 11. The apparatus of claim 1, wherein the behavioral data is provided over at least one time period, optionally each time period being 24 hours.
12. The apparatus of claim 1 , wherein the processor is configured to determine a targeted treatment program based on the determination of the one or more symptoms.
13. 1. A method for assessing pelvic floor dysfunction symptoms in a patient, comprising: receiving patient data, the patient data including at least one of questionnaire data and behavioral data of the patient; and providing a determination of one or more pelvic floor dysfunction symptoms of the patient based on the received patient data using a machine learning algorithm.
14. A non-transitory computer program comprising instructions that, when executed by a processor, cause the processor to perform the method of claim 13.
15. A computer readable medium having stored thereon the computer program of claim 14.
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