47 results about "Pre-operative evaluation" patented technology

The invention discloses a method for preparing brain tissue and vascular entity composite model based on MRI (magnetic resonance imaging) and CTA (CT angiography). The method includes: 1), acquiring image data of head and neck skull, brain tissue, vessel and arterial aneurysm; 2), leading acquired MRI and CTA original image data into three-dimensional reconstruction software, structuring a 3D composite virtual model containing the skull, brain tissue, vessel and arterial aneurysm and outputting to a 3D printer for 3D model printing in a format that the 3D printer can print to acquire the three-dimensional entity composite model containing the skull, brain tissue, vessel and arterial aneurysm. The model is quite high in simulation degree, so that doctors can perform preoperative discussionof surgical planning, preoperative risk assessment and design of operative route or even simulate operation in combination with the model; the brain tissue model is of fluid silicone brain tissue thatcan be pulled apart and can be pulled apart as in actual operation, so that the doctors are more confident, and operation risks are lowered.

A method for functionally identifying an epileptogenic focus in pre-surgical evaluation in affected subjects with intractable epilepsy is described, the method including the delivery of an effective dose of a botulinum neurotoxin (BoNT) to a presumptive epileptogenic focus in the disease-compromised central nervous system of a mammal, under conditions whereby the effective dose of the botulinum neurotoxin interacts with the soluble N-ethylmaleimide-sensitive factor-attachment receptor (SNARE) proteins, thus impairing neurotransmission.

There are provided systems and methods for ensuring compliance with mandated pre-operative policies and procedures to prevent wrong site surgeries. In an embodiment, at least two operating room personnel perform a pre-operative assessment prior to a scheduled surgical procedure. The at least two participants to the pre-operative assessment provide some indicia of their personal identity as a form of attestation to their respective participation in the pre-operative assessment. Upon verifying the submitted indicia of personal identification information received from each of the at least two operating room personnel participants to the assessment, critical operating room lighting fixtures and critical outlets are switched from an initialized disabled state to an enabled state to permit activation by the operating room personnel to allow the procedure to run its normal course. In another embodiment, a recording device is activated prior to the start of a pre-operative assessment. At least two participants perform a pre-operative assessment while the recording device is activated. The recording device is then de-activated at the conclusion of a pre-operative assessment. Responsive to the de-activation of the recording device, operating room lighting fixtures and critical outlets are switched from a disabled state to an enabled state. Accordingly, a failsafe method is provided for ensuring strict compliance with the performance of the pre-operative assessment in a timely manner. The system and method is dependent upon a repeatable obligatory behavior that is easily implemented and can be added to existing physical infrastructure at a very low cost.

The invention discloses a liver cancer image feature extraction and pathological classification method and device based on imaging omics. The method comprises the following steps: 1) collecting a patient clinical image meeting the standard, and sketching a liver cancer lesion area of the collected image by adopting a Growcut semi-automatic segmentation method; 2) performing different levels of image omics feature extraction on the segmented lesion area; 3) feature screening: starting from a filtering method, extracting non-redundant features strongly related to the classification targets by adopting a filtering Boruta algorithm; 4) in combination with clinical indexes of the patient, filtering out significant and undifferentiated features through preliminary statistical analysis, and thenfusing the image omics features to perform next Boruta screening; and 5) training on a random forest by using the finally screened features to obtain classification labels, and completing prediction of pathological classification of liver cancer. Compared with a clinically traditional biopsy method, the method provided by the invention has the characteristics of non-invasion, safety and stability,and is expected to become an effective preoperative evaluation tool for clinic.

A method of identifying an epileptogenic zone of a brain includes receiving a plurality of electrical signals from a plurality of surgically implanted electrodes, calculating components of an adjacency matrix, calculating eigenvectors from the adjacency matrix, and selecting an eigenvector having a largest eigenvalue. The method includes assigning an integer rank to each component of the eigenvector, sliding the time window by a time increment and repeating the immediately preceding steps a plurality of times. The method includes normalizing each rank signal, extracting a multidimensional feature vector from each normalized signal, projecting each multidimensional feature vector onto a reduced dimensionality space, and receiving a plurality of training data points represented in the reduced dimensionality space. The method includes calculating grid weights for each feature vector, and assigning a numerical value to each electrode as an indication of whether the electrode is in an epileptogenic zone of the brain.

A method for providing home-based post-operative care of a patient. The method including receiving patient information indicative of results of a pre-operative evaluation of whether a patient is qualified for home-based post-operative care, determining that the patient is qualified for home-based post-operative care based at least in part on the patient information received, identifying one or more post-operative requirements, generating a home-based post-operative care plan based at least in part on the one or more post-operative requirements, receiving updated patient information indicative of results of a post-operative evaluation of whether the patient remains qualified for home-based post-operative care, the updated patient information indicative of a result of the surgical procedure, determining that the patient remains qualified for home-based post-operative care based at least in part on the updated patient information received, and implementing the home-based post-operative care plan.

The invention discloses a mouth prop facilitating oral cavity observation, and belongs to the field of medical instruments. According to the technical scheme, the mouth prop utilizes a length-adjustable telescopic part and an angle-adjustable connecting rod part, so that the length and the width of the mouth prop, namely the opening size, can be conveniently adjusted, the applicability is good, lip and cheek soft tissues can be effectively separated, the boundary of gingiva and mucous membrane tissues can be clearly displayed on a CT or cone beam CT image, the thickness of gingiva and mucous membrane tissues can be measured, information provided by preoperative images is increased, preoperative evaluation and treatment of doctors are facilitated, a tongue fixing frame is detachably mountedinside, tongue soft tissues can be effectively separated, and soft tissue mucous membranes in the oral cavity can be effectively observed. The telescopic part adopts two different structures, the opening size of the mouth prop can be conveniently adjusted, and the mouth prop is simple in structure and convenient and fast to use.

The invention relates to a preoperative evaluation tester for hearing compensation performance of an artificial middle ear. The preoperative evaluation tester comprises a fixing and supporting device,a position and angle adjusting device, a coupling rod and an actuator clamping device, the fixing and supporting device is a flexible element, the position and angle adjusting device is fixed to thefixing and supporting device through bolts, the coupling rod is fixed to the position and angle adjusting device through bolts, the actuator clamping device is connected with the coupling rod througha thread pair, an included angle of 45 degrees is formed between the actuator clamping device and the coupling rod, and a layer of exciting film is arranged at the tail end of the actuator clamping device and attached to the output end of an actuator when the actuator is installed, so that the actuator directly couples with the eardrum. The position and angle adjusting device of the preoperative evaluation tester can adjust the pose of the output end of the actuator installed on the tester, accordingly, the output end of the actuator and the eardrum are better coupled, the effect of the actuator is made closer to the hearing compensation effect during implantation, and the hearing compensation effect after the artificial middle ear actuator is implanted into the body of a patient can be evaluated more accurately.

Methods for a patient surgically receiving a customized IOL for a particular eye according to patient-specific measurement data are provided. The methods may include preoperative evaluation of a particular eye of a particular patient and accumulation of patient-specific measurement data by a physician and/or a hospital. The physician, designee, and/or hospital may transmit the measurement data for the patient to the customized IOL manufacturer. The IOL manufacturer may manufacture and customize the IOL. The manufacturer may deliver the customized IOL back to the surgeon, designee, and/or hospital, after which the surgeon may perform the surgery.

The invention discloses a maintenance method of a central venous catheter with a dacron sleeve. The maintenance method comprises the steps of: preoperative evaluation, psychological nursing, catheterimbedding through cooperation of doctors, catheter use, catheter function recognition and prevention and medication guidance. Psychological nursing needs to do thought work of patients before catheterization; the importance, steps, operation methods and cost policies of hemodialysis catheterization are explained to patients and family members, and patients with the indwelling catheter after dialysis for many years are asked to be persuasive, so that the medical staff is trusted, and the anxiety fear of the patients is eliminated; unified training specification operations are performed, after the dacron sleeve catheter is successfully remained in the patients, propaganda and education such as skin medication self-observation are enhanced, and when complications occur, positive support is provided for symptomatic treatment, standardized working procedures and operation links are continuously improved by formulating an overall nursing measure system and developing management means such asa scientific advanced management method, a PDCA cycle management mode and department quality control. According to the invention, complications of the hemodialysis catheter with the dacron sleeve aregreatly reduced, the service life of the catheter is prolonged, and the catheter plays an important role in improving the vascular access problem and enabling a patient to obtain good dialysis treatment.

The invention discloses a preparation method of nose prosthesis by using a gold triangular nose carving technology and a use method thereof. The method comprises the following steps: acquiring three-dimensional original data of the head shape of a patient; designing a preoperative 3A scheme in three aspects of aesthetic appreciation, dissection and analysis, establishing an oriental gold four-digit triangle aesthetic system, a 3D data measurement evaluation system, an autologous tissue sampling system, an exclusive muscle subsidence preoperative evaluation system and a three-level full-nose scheme design system, and constructing a three-dimensional simulation image after nose processing; and realizing the whole design around the large gold triangle of the nose. According to the invention,the problem that nasal septum cartilage and auricular cartilage cannot be applied to the nose is solved; whole-nose fine carving is carried out specially for oriental nose problems, exclusive design is carried out according to different personal occupations, ages, facial forms, requirements and the like, 75 nose problems such as oriental nose root collapse, low and flat nose bridge, wide nose dorsum and low nose tip can be solved in a one-stop mode, the postoperative effect is natural and harmonious, and complications hardly exist.

The present invention provides compositions and methods that provide a high degree of sensitivity and a high degree of specificity for the preoperative assessment of ovarian tumors in a variety of subject's (e.g., pre- and post-menopausal women) having a variety of ovarian cancer types (e.g., clear cell/mucinous, low malignant potential, high malignant potential) and at a variety of disease states (e.g., early and late stage).

The invention relates to a preoperative evaluation method, device and equipment for deep brain stimulation and a storage medium. The method comprises the following steps: acquiring treatment information of a patient, wherein the treatment information comprises basic condition information and operation adaptation information; performing adaptation evaluation on the patient according to the operation adaptation information, and judging whether a preset first operation condition is met or not; if the preset first operation condition is met, obtaining operation tabu information of the patient; carrying out tabu evaluation on the patient according to the operation tabu information, and judging whether the patient meets a preset second operation condition or not; if the preset second operation condition is met, it is judged that the patient is suitable for deep brain stimulation treatment. By means of the method or device or equipment, objective DBS preoperative evaluation can be conducted on a patient, the evaluation objectivity is improved, and meanwhile operation risks are reasonably avoided.

The invention relates to the technical field of coronary artery chronic complete occlusion lesion preoperative evaluation, and discloses a scoring model for predicting the success rate of a coronary artery chronic complete occlusion lesion interventional therapy. The method comprises the following scoring variables: blunt occlusion, 1 point; calcification: 1 point; bending, 1 point; the occlusionlength>=20mm, 1 point; far-end occlusion lesion, 1 point; side branch circulation, 1 point; target blood vessel CABG history, 1 point; occlusion in a stent, 1 point; open occlusion, 1 point, and operator variables, -4 points. The model can be used for evaluating and predicting the complexity of chronic complete occlusion and better predicting the risk of failure of the CTO percutaneous coronary intervention treatment technology, the operator technology and experience are brought into the scoring standard for the first time, scoring variables are increased, and the method has the advantages ofhigh good in applicability and high in prediction capacity.

The invention discloses a preoperative evaluation method and system for an esophageal cancer patient. The method comprises the steps of obtaining first basic information of a first user; obtaining first basic illness state information according to the first basic information; obtaining a first image set of a first user, and obtaining a first analysis instruction; analyzing the first image set according to the first analysis instruction to obtain a first analysis result is obtained, wherein the first analysis result comprises real-time state information of the first user; integrating the first basic illness state information of the first user and the real-time state information to obtain a first integrated evaluation result of the first user; obtaining a first predetermined operation plan of the first user through the preoperative evaluation system; and obtaining a first risk assessment result according to the first integration assessment result and the first predetermined operation plan. The technical problem that in the prior art, preoperative evaluation of esophageal cancer patients is not accurate enough is solved.

The invention relates to an ultrasonic system for predicting the curative effect of ICC immunotherapy combined with targeting and/or chemotherapy, and the system is characterized in that the system comprises: a gray-scale ultrasonic image obtaining module which is used for obtaining a gray-scale ultrasonic image of the maximum section of a focus; an ICC focus segmentation module; the feature extraction module that is used for carrying out feature extraction on the focus ROI region; a feature dimension reduction module; the radiomics prediction model that predicts key feature data after immunotherapy combined targeting and/or chemotherapy treatment of a patient. Ultrasonic is a first-line iconography method for liver examination at present, and is also the most common iconography method for ICC preoperative evaluation and curative effect follow-up visit. The imaging omics can extract massive high-throughput characteristics, and by combining conventional gray-scale images and clinical data of patients and establishing an imaging omics model based on the high-throughput characteristics, immunotherapy combined targeting and/or chemotherapy curative effect prediction of the ICC patients can be realized.

A double-stranded DNA biomarker derived from exosomes is useful in early diagnosis and preoperative evaluation of pheochromocytoma and paraganglioma, and applications thereof. The biomarker is genome double-stranded DNA fragment specifically derived from exosomes in blood serum of pheochromocytoma and paraganglioma patients. The double-stranded DNA can represent variations of RET, VHL, and HIF2A with high frequency of somatic cell mutation, and metastatic phenotype-related SDHB, which are susceptibility genes of PCCs and PGLs. The circulating exosome DNA in patient's peripheral blood contains 97% of the same chromosomal point mutation information as the tumor cells from which the DNA originated. There is evidence off the existence of double-stranded DNA in the serum exosomes of PCCs and PGLs. The double-stranded DNA can be used to identify mutations in tumor cells and provide a noninvasive molecular marker for the clinical diagnosis and preoperative evaluation of PCCs and PGLs.

The present invention relates to a bone defect amount evaluation method for the bony Bankart injury, wherein the equally-divided circle comparison card is used for being opposite to a CT three-dimensional image of a glenoid cavity of a patient, the number of equally-divided grids occupied by the glenoid cavity bone defect portion on the comparison card is read out, the overall proportion is calculated according to the proportion of each equally-divided grid, and then the bone defect amount can be evaluated conveniently and rapidly. The evaluation method is not limited by human skeleton structure characteristics, a tedious calculation process and a software learning process are omitted, and the clinical diagnosis and treatment efficiency is greatly improved. Besides, the method is simple and convenient to operate and high in accuracy, reliability and universality, provides technical support for preoperative evaluation, and has good clinical popularization and application values.

The invention belongs to the technical field of image classification, and particularly relates to a liver cancer image classification method combining computer visual features and radiomics features, which comprises the following steps: S1, collecting liver cancer images and case data corresponding to the liver cancer images, sorting feature diseases and treatment schemes and treatment results of the diseases, and associating input tags as a training sample library; s2, utilizing a computer to intercept focus images at corresponding positions on the liver cancer image from the label established in the step S1, classifying, and establishing a case feature library; and S3, carrying out image omics feature extraction on the focus image intercepted in the step S2. And S4, performing staged association on the disease feature process extracted in the step S3, updating the disease feature process to the case feature library, generating a disease tree feature library, and completing classification of the liver cancer images. A disease tree feature library is established, and the device can be conveniently used as a preoperative evaluation tool and is expected to help surgeons customize individualized preoperative treatment schemes and prognosis evaluation in the future.

The invention discloses a double-lower-limb scanning method for evaluating a force line before knee replacement, which comprises the following steps: S01, a patient lies on the back on a CT (Computed Tomography) scanning bed, and the center line of the body is kept consistent with the center line of the scanning bed; s02, performing one-section scanning on the upper and lower sides of the hip joint of the lower limb of the patient by CT; s03, performing two-section scanning on the upper and lower sides of the knee joint of the lower limb of the patient by CT; s04, performing three-section scanning on the upper side and the lower side of the ankle joint of the lower limb of the patient by CT; s05, the three groups of scanning CT data packets are imported into a processing system, and CT scanning medical images are obtained.According to the scanning method, the mode that the two lower limbs are scanned in three sections is adopted, the radiation influence on the patient in the process of scanning the two lower limbs can be reduced, meanwhile, a large amount of unnecessary section data existing in full-section scanning of the two lower limbs can be avoided, and the scanning efficiency is improved. The method can play a good role in assisting preoperative data in the HTO operation, has a good evaluation effect on the HTO preoperative, and has a great popularization value.

The invention discloses a pituitary tumor operation planning system based on an artificial intelligence technology. The system comprises the following steps: 1, acquiring a vascular medical image sequence, a skeleton medical image sequence and a pituitary tumor medical image sequence; 2, if the medical image sequences are the image sequences shot at different moments or the image sequences shot at the same moment are not in the same coordinate system, performing registration, and placing the image sequences in the same coordinate system; 3, using a deep neural network model to take each medical image sequence in the same coordinate system as input, and outputting a blood vessel image segmentation result, a skeleton image segmentation result and a pituitary tumor image segmentation result; and 4, performing three-dimensional reconstruction on the blood vessel image segmentation result, the skeleton image segmentation result and the pituitary tumor image segmentation result to obtain a three-dimensional model for pituitary tumor preoperative planning. The method is high in processing speed and high in reliability, so that preoperative evaluation and surgical planning of clinicians become simple, accurate and rapid.

The invention relates to an index evaluation method for renal tumor partial resection risk and postoperative early prognosis. The method comprises the steps: dividing different operation modes into open operations and non-open operations; according to preoperative CT imaging data of a patient, obtaining the sum of a basic size index of a kidney tumor and a position index of the tumor as a preoperative index evaluation index, and establishing an operation difficulty and early prognosis index for preoperative evaluation of the kidney tumor according to different operation modes. Compared with other scoring systems, the system can be more suitable for diversified operation modes at present, and reference suggestions are provided for clinicians. Compared with other scoring systems, the evaluation system for evaluating the operation risk and postoperative early prognosis of renal tumor partial resection based on different operation modes can be more suitable for the diversified operation modes at present; the system is an evaluation system established through prospective research on the basis of the corresponding illness state of a patient, and compared with a previous scoring system (based on retrospective research), the operation risk and postoperative early prognosis can be better evaluated.