Respiration guiding system for image examination

Abstract

The invention relates to a respiration guiding system for image examination, which is applied to the technical field of image examination and comprises a respiration monitoring module, a patient feedback module, a control processing module and a physician interaction terminal, a plurality of different target breathing waveforms are pre-stored in the doctor interaction terminal, the control processing module generates real-time breathing waveforms based on breathing waveform signals, time synchronization is conducted on the target breathing waveforms and the real-time breathing waveforms, then the patient feedback module and the doctor interaction terminal are controlled to be displayed in a parallel comparison mode, and a patient is guided to adjust breathing. According to the invention, through ''physician-system-patient'' three-element closed-loop interaction, respiratory training and pre-judgment before scanning and continuous guidance and stable maintenance during scanning are realized, so that the success rate of first scanning is improved, the number of times of repeated scanning is reduced, and the radiation dose risk and medical cost of a patient are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to a breathing balance control device, in particular to a breathing guidance system for image examination applied to the field of image examination technology. BACKGROUND

[0002] CT image examination has become an indispensable tool in modern clinical diagnosis. However, the inherent physiological movement of the human body, especially the respiratory movement, is a key factor affecting the CT image quality of the chest, abdomen and other parts. Respiratory movement may cause blurring, ghosting and other artifacts in the reconstructed image, and in severe cases may even mask the lesion or lead to misdiagnosis.

[0003] The mainstream method for managing respiratory movement in current CT scanning practice and its inherent defects are as follows:

[0004] Manual voice instruction method: This is the most widely used method in CT scanning, which completely relies on the experience of radiological technicians and the understanding and cooperation ability of patients.

[0005] Defects: Instructions such as "inhale a breath, hold" are too vague to quantify the depth, rhythm and holding time of breathing. Due to differences in age, illness, psychological stress level and other aspects of patients, the execution effect will be very different. The technician cannot know the real-time cooperation quality of the patient during the scanning process, and can only evaluate the image after the scanning is completed, which belongs to the typical "post-detection" mode, with high failure cost, leading to repeated exposure of CT scanning and increasing the radiation dose of patients.

[0006] Simple visual aid method: Set up indicator lights or screens in the CT examination room, showing "inhale", "hold breath", "exhale" and other text or arrow prompts.

[0007] Defects: This method is only one-way information transmission and does not form a closed loop. The system cannot sense whether the patient has performed according to the prompt, nor can it correct the execution deviation. When the patient enters the CT scanning hole, the line of sight is blocked, and this guidance method will fail.

[0008] Respiratory gating technology: This technology monitors the respiratory cycle through sensors (such as pressure bands) placed on the surface of the patient, and attempts to automatically trigger CT scanning at a specific phase of the respiratory cycle (such as end-expiration).

[0009] Defects: The existing gating technology is essentially "passive tracking". It only tracks and uses the natural respiratory cycle of the patient. If the patient's breathing is irregular (such as coughing, wheezing, inconsistent depth), the system is helpless and can only wait or interrupt. More importantly, it lacks the ability to actively and guidingly intervene in the patient, and it is difficult to "shape" a stable and ideal breathing state to match the high requirement of CT scanning for breath-holding stability.

[0010] In summary, the common core problem of existing CT scanning technology is that there is a lack of an "intelligent and closed-loop" system that can carry out breathing training and quality prediction before scanning, and continuous guidance and stable maintenance during scanning. This directly leads to a high repeat scanning rate of CT scanning, causing waste of medical resources and additional radiation dose and time cost for patients. SUMMARY

[0011] In view of the above prior art, the purpose of the present application is to provide an intelligent and closed-loop breathing guidance system that can carry out breathing training and quality prediction for patients before CT examination, and continuous breathing guidance and stable maintenance during CT scanning, in order to reduce CT image artifacts caused by respiratory motion, reduce the repeat scanning rate, save medical resources, and reduce the additional radiation dose and time cost for patients.

[0012] To achieve the above purpose, the present application provides a breathing guidance system for image examination, comprising a breathing monitoring module, a patient feedback module, a control processing module, and a physician interactive terminal, the control processing module being signal connected with the breathing monitoring module, the patient feedback module, and the physician interactive terminal;

[0013] The breathing monitoring module is configured to monitor the patient's respiratory motion in a non-contact manner in real time and generate a breathing waveform signal, and send the breathing waveform signal to the control processing module;

[0014] The physician interactive terminal pre-stores a plurality of different target breathing waveforms, and is configured to:

[0015] In response to the selection operation of the physician, the target breathing waveform selected by the physician is sent to the control processing module;

[0016] The control processing module is configured to:

[0017] Receive the breathing waveform signal from the breathing monitoring module and generate a real-time breathing waveform based on the breathing waveform signal;

[0018] Receive the target breathing waveform from the physician interactive terminal;

[0019] Time synchronize the target breathing waveform with the real-time breathing waveform, so that the patient feedback module and the physician interactive terminal display the target breathing waveform and the real-time breathing waveform in a side-by-side comparison manner;

[0020] The patient feedback module is configured to receive and display the target breathing waveform and the real-time breathing waveform from the control processing module to the patient in a side-by-side comparison manner;

[0021] The physician interaction terminal is further configured to receive and display the target respiration waveform and the real-time respiration waveform from the control processing module to the physician in a side-by-side comparison manner.

[0022] As a further improvement of the present application, the physician interaction terminal is further configured to modify the parameters of the target respiration waveform selected by the physician in response to an adjustment operation of the physician.

[0023] The target respiration waveform sent by the physician interaction terminal to the control processing module is an adjusted target respiration waveform.

[0024] Preferably, the parameters include at least one of breath-hold duration, inhalation time, and exhalation time.

[0025] As a further improvement of the present application, a plurality of video data are pre-stored in the physician interaction terminal, and the physician interaction terminal is further configured to send the video data selected by the physician to the control processing module in response to a selection operation of the physician.

[0026] The control processing module is further configured to send the video data to the patient feedback module.

[0027] The patient feedback module is further configured to receive and display the video data from the control processing module to the patient.

[0028] Preferably, the respiration monitoring module is a 3D time-of-flight camera.

[0029] As another improvement of the present application, the patient feedback module is a wearable visual feedback device, which includes a wearable reflection unit and an image projection unit 002, the wearable reflection unit including:

[0030] A frame 101 shaped like a pair of glasses suitable for wearing on the head of a human body;

[0031] A semi-transparent and semi-reflective optical lens 103;

[0032] A connecting structure 102 for fixing the semi-transparent and semi-reflective optical lens 103 in front of the frame 101;

[0033] The image projection unit 002 is used to project the target respiration waveform and the real-time respiration waveform to the semi-transparent and semi-reflective optical lens 103;

[0034] The semi-transparent and semi-reflective optical lens 103 is used to reflect the target respiration waveform and the real-time respiration waveform projected by the image projection unit 002 into the eyes of the patient.

[0035] As a supplement to another improvement of the present invention, the image projection unit 002 is placed outside the medical imaging scanning device, the frame 101 and the connecting structure 102 are made of materials compatible with the medical imaging scanning device, the materials compatible with the medical imaging scanning device are low atomic number materials, and the semi-transparent and semi-reflective optical lens 103 is tilted relative to the frame 101.

[0036] As a supplement to another improvement of the present invention, a base point mounting plate 104 is fixedly connected to the semi-transparent and semi-reflective optical lens 103, and one or more optical reference points 105 are provided on the base point mounting plate 104.

[0037] The wearable visual feedback device also includes an optical image sensor, an adjustment controller, and an automatic adjustment mechanism located at the image projection unit 002;

[0038] An optical image sensor is used to capture images containing optical reference point 105;

[0039] The adjustment controller is signal-connected to the optical image sensor and the automatic adjustment mechanism, and is configured to: resolve the spatial attitude information of the wearable reflective unit based on the image captured by the optical image sensor, and generate adjustment commands based on the spatial attitude information;

[0040] The automatic adjustment mechanism is used to adjust the projection angle or position of the image projection unit 002 based on adjustment commands.

[0041] As a further improvement to the present invention, the optical reference point 105 is an infrared reflection marker, the optical image sensor is an infrared camera, and the automatic adjustment mechanism is a two-axis or three-axis motorized gimbal.

[0042] In summary, this invention accurately acquires the patient's respiratory status through a non-contact respiratory monitoring module and, combined with the target respiratory waveform set by the physician's interactive terminal, achieves real-time feedback and closed-loop control of the patient's breathing. The respiratory guidance system in this invention not only helps patients perform effective breathing training before examination, making their breathing state closer to the target waveform, thereby reducing image artifacts caused by respiratory movements and improving image quality during the actual scan; but also, during the scan, the system can continuously monitor and adjust the patient's breathing, ensuring that the patient always maintains a breathing state consistent with the target respiratory waveform. This greatly improves the success rate of the first scan, reduces the number of repeated scans, and thus reduces the patient's radiation dose risk and medical costs. Furthermore, the physician can monitor the patient's breathing status in real time through the interactive terminal, providing timely guidance and adjustments. This real-time interactive mechanism not only improves examination efficiency but also enhances communication and collaboration between doctors and patients. In addition, the wearable visual feedback device can effectively display the target respiratory waveform and real-time respiratory waveform to the patient without interfering with the medical imaging scanning equipment, improving the system's reliability and safety. Attached Figure Description

[0043] Figure 1 These are structural block diagrams of the breathing guidance system in the first and second embodiments of the present invention;

[0044] Figure 2 This is a structural block diagram of the patient feedback module in the first embodiment of the present invention;

[0045] Figure 3 This is a three-dimensional structural diagram of the wearable reflective unit in the first embodiment of the present invention;

[0046] Figure 4 This is a pictographic illustration of the image projection unit projecting onto a semi-transparent and semi-reflective optical lens in the first embodiment of the present invention.

[0047] Figure 5 This is a structural block diagram of a wearable visual feedback device according to a second embodiment of the present invention;

[0048] Figure 6 This is a three-dimensional structural diagram of the wearable reflective unit in the second embodiment of the present invention.

[0049] Explanation of the labels in the diagram:

[0050] 101. Frame; 102. Connecting structure; 103. Semi-transparent and semi-reflective optical lens; 104. Base point mounting plate; 105. Optical reference point; 002. Image projection unit. Detailed Implementation

[0051] The two embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0052] First implementation method:

[0053] Figures 1-4 A respiratory guidance system for imaging examination is shown, including a respiratory monitoring module, a patient feedback module, a control processing module, and a physician interaction terminal. The control processing module is signal-connected to the respiratory monitoring module, the patient feedback module, and the physician interaction terminal.

[0054] The respiratory monitoring module is configured to monitor the patient's respiratory movements in real time in a non-contact manner and generate respiratory waveform signals, as well as send the respiratory waveform signals to the control processing module. Preferably, the respiratory monitoring module is a 3D time-of-flight camera, which accurately senses the three-dimensional contour changes of the patient's chest and abdomen by emitting and receiving near-infrared light, and outputs point cloud data at a rate of 30 frames per second. High-precision respiratory waveform signals are generated by tracking the displacement of specific anatomical landmarks (such as the xiphoid process).

[0055] The physician interaction terminal pre-stores a plurality of different target breathing waveforms, each corresponding to a standard breathing protocol, for example:

[0056] Waveform A (deep end-inspiration hold): slow linear inspiration (4 seconds) → plateau hold (15 seconds) → slow linear expiration (4 seconds);

[0057] Waveform B (quiet end-expiration hold): natural expiration → plateau hold (10 seconds) → natural inspiration;

[0058] The physician can select a corresponding target breathing waveform according to the part of the patient to be examined;

[0059] The physician interaction terminal is configured to send the target breathing waveform selected by the physician to the control processing module in response to the selection operation of the physician.

[0060] The control processing module is configured to:

[0061] receive a breathing waveform signal from the breathing monitoring module and generate a real-time breathing waveform based on the breathing waveform signal;

[0062] receive a target breathing waveform from the physician interaction terminal;

[0063] synchronize the target breathing waveform with the real-time breathing waveform in time, so that the patient feedback module displays the target breathing waveform and the real-time breathing waveform in a side-by-side comparison manner to the physician interaction terminal;

[0064] The patient feedback module is configured to receive and display the target breathing waveform and the real-time breathing waveform from the control processing module to the patient in a side-by-side comparison manner;

[0065] The physician interaction terminal is also configured to receive and display the target breathing waveform and the real-time breathing waveform from the control processing module to the physician in a side-by-side comparison manner.

[0066] The physician interaction terminal is also configured to modify the parameters of the target breathing waveform selected by the physician in response to the adjustment operation of the physician;

[0067] After the physician selects the target breathing waveform according to the part of the patient to be examined, the physician can also make certain modifications to the parameters of the target breathing waveform according to the patient's condition (age, physical condition, etc.), so that the target breathing waveform is more suitable for the actual condition of the patient;

[0068] The target breathing waveform sent by the physician interaction terminal to the control processing module is an adjusted target breathing waveform, and the parameters include at least one of hold time, inspiration time, and expiration time.

[0069] Regarding target respiratory waveform: The target respiratory waveform exists in the form of discrete-time sequence data defined and generated in a parametric manner in the system. Each waveform is defined by key parameters such as inspiration duration, breath-hold duration, and expiration duration. The system generates a standardized curve with amplitude varying over time according to these parameters. For example, for a "deep inspiration end breath-hold" (waveform A) waveform, the amplitude A monotonically increases from 0 to 1 during the inspiration period, maintains 1 during the breath-hold period, and monotonically decreases from 1 to 0 during the expiration period. After the physician adjusts the parameters through the interactive terminal, the system will regenerate the target waveform data in real time using the same parametric model.

[0070] Regarding real-time respiratory waveform: The control processing module performs the following steps on the raw signal from the respiratory monitoring module in sequence to generate the real-time respiratory waveform:

[0071] Signal filtering: A digital filter (such as a low-pass Butterworth filter) is used to smooth the raw signal to filter out high-frequency noise;

[0072] Amplitude normalization: The amplitude of the filtered signal is mapped to a fixed reference interval (such as [0, 1]), where the lower limit corresponds to the end of expiration and the upper limit corresponds to the end of inspiration, to eliminate individual differences and facilitate direct comparison with the target waveform.

[0073] Regarding time synchronization: The present invention provides different levels of synchronization schemes:

[0074] Basic scheme (origin synchronization method): When the guidance starts, the system takes the current time as the time origin, and simultaneously starts outputting the target waveform sequence and recording the real-time waveform. This method is simple to implement and suitable for patients with stable respiratory rhythm.

[0075] Preferred scheme (dynamic phase synchronization): To cope with the dynamic changes of respiratory rhythm, the system can use the dynamic time warping algorithm. This algorithm calculates the optimal nonlinear matching path between two waveforms, dynamically calibrates the phase difference between them, and thus achieves precise real-time alignment throughout the respiratory cycle, effectively compensating for synchronization errors caused by uneven breathing speed, and improving the robustness of guidance.

[0076] When the imaging examination is performed, after the preparation work (for example, guiding the patient to lie on the CT scan bed in the correct posture) is completed, the physician first performs target respiratory waveform selection, target respiratory waveform adjustment (if necessary, an optional operation) and the like; before starting the scan, the system first performs respiratory training on the patient, and during the training process, the respiratory monitoring module monitors the respiratory motion of the patient in real time and generates a respiratory waveform signal, the control processing module generates a real-time respiratory waveform based on the respiratory waveform signal, and synchronizes the target respiratory waveform and the real-time respiratory waveform in time, and the patient feedback module displays the target respiratory waveform and the real-time respiratory waveform to the patient in a side-by-side comparison manner, so that the patient can intuitively see the difference between his actual respiratory state and the target state, thereby adjusting the respiration in a targeted manner; at the same time, the physician interaction terminal also displays the target respiratory waveform and the real-time respiratory waveform to the physician in a side-by-side comparison manner, so that the physician can master the respiratory training situation of the patient in real time and give timely guidance and adjustment;

[0077] After the training achieves the expected effect, that is, the real-time respiratory waveform of the patient is highly consistent with the target respiratory waveform, the physician can start the imaging examination scan; during the scan, the system continues to play a closed-loop control role, the respiratory monitoring module still monitors the patient's respiration in real time, the control processing module continuously generates a real-time respiratory waveform and synchronizes and compares it with the target respiratory waveform, and the patient feedback module continuously displays the comparison of the target respiratory waveform and the real-time respiratory waveform to the patient, to ensure that the patient can always maintain a respiratory state consistent with the target respiratory waveform during the scan, thereby minimizing the influence of respiratory motion on image quality and improving the success rate of the first scan; at the same time, the physician interaction terminal also continuously displays the comparison of the target respiratory waveform and the real-time respiratory waveform to the physician, so that in the event of deviation of the patient's respiratory state during the scan, the physician can timely detect and make corresponding adjustments, rather than only being able to discover the deviation of the patient's respiratory state after the scan is completed. This real-time feedback and adjustment mechanism greatly improves the efficiency and accuracy of the imaging examination.

[0078] Therefore, the present application accurately obtains the breathing state of the patient through the non-contact breathing monitoring module, and realizes real-time feedback and closed-loop control of the patient's breathing in combination with the target breathing waveform set by the physician interactive terminal. The breathing guidance system in the present application not only helps the patient to perform effective breathing training before examination, so that the breathing state of the patient is closer to the target waveform, thereby reducing image artifacts caused by breathing motion during formal scanning and improving image quality, but also continuously monitors and adjusts the patient's breathing during scanning to ensure that the patient always maintains the breathing state consistent with the target breathing waveform, which greatly improves the success rate of the first scan, reduces the number of repeated scans, and further reduces the radiation dose risk and medical cost of the patient. In addition, the physician can master the breathing condition of the patient in real time through the interactive terminal and make timely guidance and adjustment. This real-time interactive mechanism not only improves the examination efficiency, but also enhances the communication and cooperation between doctors and patients.

[0079] The patient feedback module is a wearable visual feedback device, which comprises a wearable reflection unit and an image projection unit 002, the wearable reflection unit comprises:

[0080] A frame 101 in the shape of glasses suitable for wearing on the head of a human body;

[0081] A semi-transparent and semi-reflective optical lens 103;

[0082] A connecting structure 102 for fixing the semi-transparent and semi-reflective optical lens 103 in front of the frame 101;

[0083] The image projection unit 002 is used to project the target breathing waveform and the real-time breathing waveform to the semi-transparent and semi-reflective optical lens 103;

[0084] The semi-transparent and semi-reflective optical lens 103 is used to reflect the target breathing waveform and the real-time breathing waveform projected by the image projection unit 002 into the patient's eyes.

[0085] The essence of the semi-transparent and semi-reflective optical lens 103 is an optical beam splitter, which is realized by coating a specific film layer on an optical substrate (such as optical glass or resin) and can divide the incident light into reflected light and transmitted light at a certain ratio (for example, the reflectivity and transmissivity are each 50%). In the present system, the lens can efficiently reflect the image light (target breathing waveform and real-time breathing waveform) from the image projection unit 002 into the patient's eyes, while allowing the patient to clearly observe the external real environment through the lens. In addition, the optical substrate of the lens uses low-atomic-number materials (such as optical glass or resin) to ensure that it does not produce significant radiation hardening artifacts in CT scanning.

[0086] The image projection unit 002 is placed outside (in the scanning room, outside the scanning frame) the medical image scanning device, on the one hand, to avoid the electromagnetic interference of its electronic circuit on the high-sensitivity CT detector, and on the other hand, to avoid its physical structure from entering the scanning field of view and forming a blocking artifact on the CT image; the mirror frame 101 and the connecting structure 102 are made of a material compatible with the medical image scanning device, which is a low-atomic-number material, such as medical plastic, engineering plastic, carbon fiber composite material, ceramic, etc., to avoid interference of the mirror frame 101 and the connecting structure 102 on the medical image scanning device; therefore, the wearable visual feedback device can effectively display the target respiratory waveform and the real-time respiratory waveform to the patient without interfering with the medical image scanning device, thereby improving the reliability and safety of the system.

[0087] The semi-transmissive and semi-reflective optical lens 103 is inclined relative to the mirror frame 101, so that the image light projected by the image projection unit 002 can be better reflected into the patient's eye; the wearable reflection unit is provided in multiple specifications according to the size of the mirror frame 101, and the wearable reflection units of different specifications are suitable for patients of different body types, and the doctor can provide the patient with a wearable reflection unit of a suitable specification according to the patient's body type.

[0088] The doctor interaction terminal pre-stores a plurality of video data, and the doctor interaction terminal is further configured to: in response to a selection operation of the doctor, send the video data selected by the doctor to the control processing module;

[0089] The control processing module is further configured to: send the video data to the patient feedback module;

[0090] The patient feedback module is further configured to: receive and display the video data from the control processing module to the patient.

[0091] The respiratory guidance system in the application not only plays a role in some examination items that need to manage respiratory motion, but also plays a role in some examination items that do not need to manage respiratory motion when facing special patients, such as child patients. The doctor can select appropriate video data (such as an animation) for the child patient, then send the video data to the control processing module, then send the video data from the control processing module to the patient feedback module, and make the patient feedback module display the video data to the child patient (in this case, the image projection unit 002 projects the video content to the semi-transmissive and semi-reflective optical lens 103, and the child patient can watch the video image after reflection), thereby playing a role in calming the child patient's emotions, distracting their attention and improving their cooperation, which helps the smooth progress of the examination, and improves the functionality and practicality of the system.

[0092] Second embodiment:

[0093] Please refer to Figure 5 andFigure 6 A base point mounting plate 104 is also fixedly connected to the semi-transparent and semi-reflective optical lens 103, and one or more optical reference points 105 are provided on the base point mounting plate 104;

[0094] The wearable visual feedback device also includes an optical image sensor, an adjustment controller, and an automatic adjustment mechanism located at the image projection unit 002;

[0095] An optical image sensor is used to capture images containing optical reference point 105;

[0096] The adjustment controller is signal-connected to the optical image sensor and the automatic adjustment mechanism, and is configured to: resolve the spatial attitude information of the wearable reflective unit based on the image captured by the optical image sensor, and generate adjustment commands based on the spatial attitude information;

[0097] The automatic adjustment mechanism is used to adjust the projection angle or position of the image projection unit 002 based on adjustment commands.

[0098] The optical reference point 105 is an infrared reflection marker, the optical image sensor is an infrared camera, and the automatic adjustment mechanism is a two-axis or three-axis motorized gimbal.

[0099] By combining the base point mounting plate 104, optical reference point 105, and optical image sensor, the system automatically adjusts the projection angle or position of the image projection unit 002 after the patient wears the wearable reflective unit and enters the scanning gantry. This ensures that the target respiratory waveform and real-time respiratory waveform can be successfully displayed to the patient without manual adjustment by the patient or physician. This automatic adjustment mechanism not only improves the system's convenience and ease of use but also ensures accurate waveform projection on patients of different body types and postures, further enhancing the system's adaptability and stability.

[0100] In light of current practical needs, the above-described embodiments of this invention are not limited to these specific implementations. Any changes made within the scope of knowledge possessed by those skilled in the art, without departing from the concept of this invention, still fall within the protection scope of this invention.

Claims

1. A respiratory guidance system for imaging examinations, characterized in that, The system comprises a breathing monitoring module, a patient feedback module, a control processing module, and a physician interactive terminal, the control processing module is in signal connection with the breathing monitoring module, the patient feedback module, and the physician interactive terminal; The breathing monitoring module is configured to monitor the breathing movement of the patient in real time in a non-contact manner and generate a breathing waveform signal, and send the breathing waveform signal to the control processing module; The physician interactive terminal pre-stores a plurality of different target breathing waveforms and is configured to: send the target breathing waveform selected by the physician to the control processing module in response to the selection operation of the physician; The control processing module is configured to: receive the breathing waveform signal from the breathing monitoring module and generate a real-time breathing waveform based on the breathing waveform signal; receive the target breathing waveform from the physician interactive terminal; synchronize the target breathing waveform with the real-time breathing waveform in time, so that the patient feedback module and the physician interactive terminal display the target breathing waveform and the real-time breathing waveform in a side-by-side comparison manner; The patient feedback module is configured to receive and display the target breathing waveform and the real-time breathing waveform from the control processing module to the patient in a side-by-side comparison manner; The physician interactive terminal is also configured to receive and display the target breathing waveform and the real-time breathing waveform from the control processing module to the physician in a side-by-side comparison manner.

2. A respiratory guidance system for use in imaging according to claim 1, wherein, The physician interactive terminal is also configured to modify the parameters of the target breathing waveform selected by the physician in response to the adjustment operation of the physician; The target breathing waveform sent by the physician interactive terminal to the control processing module is an adjusted target breathing waveform.

3. A respiratory guidance system for use in imaging according to claim 2, wherein, The parameters include at least one of breath-holding duration, inhalation time, and exhalation time.

4. The respiratory-gating system for imaging examinations of claim 1, wherein, The physician interactive terminal pre-stores a plurality of video data, and the physician interactive terminal is also configured to send the video data selected by the physician to the control processing module in response to the selection operation of the physician; The control processing module is also configured to send the video data to the patient feedback module; The patient feedback module is also configured to receive and display the video data from the control processing module to the patient.

5. The respiratory-gating system for imaging examinations of claim 1, wherein, The breathing monitoring module is a 3D time-of-flight camera.

6. The respiratory-gating system for imaging examinations of claim 1, wherein, The patient feedback module is a wearable visual feedback device, which comprises a wearable reflection unit and an image projection unit (002), the wearable reflection unit comprises: a frame (101) shaped like glasses suitable for wearing on the head of a human body; a semi-transparent and semi-reflective optical lens (103); a connecting structure (102) for fixing the semi-transparent and semi-reflective optical lens (103) in front of the frame (101); the image projection unit (002) is used to project the target breathing waveform and the real-time breathing waveform to the semi-transparent and semi-reflective optical lens (103); the semi-transparent and semi-reflective optical lens (103) is used to reflect the target breathing waveform and the real-time breathing waveform projected by the image projection unit (002) into the eyes of the patient.

7. A respiratory guidance system for use in imaging according to claim 6, wherein, The image projection unit (002) is placed outside the medical image scanning device, the frame (101) and the connecting structure (102) are made of a material compatible with the medical image scanning device, the material compatible with the medical image scanning device is a low-atomic-number material, and the semi-transparent semi-reflective optical lens (103) is arranged obliquely relative to the frame (101).

8. A respiratory guidance system for use in imaging according to claim 7, wherein, The semi-transparent semi-reflective optical lens (103) is fixedly connected with a base point mounting sheet (104), and the base point mounting sheet (104) is provided with one or more optical reference points (105); The wearable visual feedback device further comprises an optical image sensor, an adjustment controller and an automatic adjustment mechanism arranged at the image projection unit (002); The optical image sensor is used to capture an image containing the optical reference point (105); The adjustment controller is signal-connected with the optical image sensor and the automatic adjustment mechanism, and is configured to analyze spatial posture information of the wearable reflection unit based on the image captured by the optical image sensor, and generate an adjustment instruction based on the spatial posture information; The automatic adjustment mechanism is used to adjust the projection angle or position of the image projection unit (002) based on the adjustment instruction.

9. A respiratory guidance system for use in imaging according to claim 8, wherein, The optical reference point (105) is an infrared reflective marker point, the optical image sensor is an infrared camera, and the automatic adjustment mechanism is a two-axis or three-axis electric pan-tilt head.

Images