94 results about "Ct examination" patented technology

The invention discloses an intelligent linkage system of radiographic inspection equipment and a protection device. The intelligent linkage system comprises an image recognition module, a controller and a driving and protection structure. The image recognition module captures an image of a detected person and position change information of radiographic inspection equipment and transmits the information to the controller; the controller calculates the height of a detected person, a detection part and an equipment position through a convolutional neural network algorithm, determines a target protection position and generates a motor driving instruction; the driving and protection structure drives the protection part to the target position according to the instruction. According to the system, machinery and artificial intelligence are combined, the system can automatically adapt to different crowds, automatic radiation protection of DR and CT examination is achieved, the protection standardization and the working efficiency are improved, and the radiation risk is reduced.

1. The name of the design product: leg support for CT examination. 2. The use of the design product: leg support for CT examination. 3. The design features of the design product: in the perspective view. 4. The picture or photo that best indicates the design features: perspective view.

The utility model provides an upper limb lifting device for CT examination, and belongs to the technical field of medical instruments. The problem of how to improve the scanning imaging effect while ensuring the comfort is solved. The upper limb lifting device for the CT examination comprises a bottom plate, two oppositely-arranged connecting supports are connected to the bottom plate, the opposite sides of the two connecting supports are detachably connected with long-strip-shaped hand placing rods, and each hand placing rod is arranged in the transverse direction. According to the upper limb lifting device for the CT examination, the scanning imaging effect can be improved while the comfort of a patient is guaranteed.

The invention discloses a system for evaluating coronary artery calcification points through photon CT non-electrocardiogram gated lung CT plain scanning, and relates to the technical field of coronary artery calcification point evaluation. Through the CT data acquisition module, the coronary artery calcification recognition module, the integral calculation evaluation module and the risk evaluation generation module, X-ray photons are directly counted, electronic noise is eliminated, the signal-to-noise ratio and the contrast noise ratio are improved, in conventional chest low-dose CT, electrocardio gating is not needed, and the cost is reduced. Automatic processing from low-dose lung CT flat scanning data acquisition to structured report generation is achieved, manual data transmission and intervention among all links are not needed, coronary artery calcification evaluation is fused into a conventional lung CT examination process, the extra burden caused by the fact that a patient needs to independently conduct coronary artery CT scanning is avoided, and the examination efficiency is improved; errors possibly caused by manual operation are reduced, consistency and reliability of evaluation results are ensured, and clinical examination and diagnosis processes are optimized.

The invention discloses a local radiation protection device for CT examination, and belongs to the technical field of protection devices. A local radiation protection device for CT examination comprises a protection lead plate, one side of the protection lead plate is fixedly connected to a connecting frame, a lifting frame is movably installed below the connecting frame, the lifting frame is connected to a fixed sliding frame in a sliding mode, and the fixed sliding frame drives the lifting frame to conduct height adjustment through an adjusting assembly. The height and the horizontal rotation angle of the protection lead plate are convenient to adjust, the walking assembly is arranged on the base, the base and other structures are driven to linearly move along the walking guide rod, the protection lead plate can synchronously move along with a patient on the CT detection bed, and the protection lead plate can be always suspended on the covering part of the patient; according to the CT detection bed, the protection lead plate can be conveniently rotated to the lateral position, the protection lead plate can be conveniently moved away from the CT detection bed, when a patient enters the CT detection bed or gets up from the CT detection bed, the protection lead plate cannot cause obstruction, and practicability is improved.

The utility model discloses a head support device for CT examination relates to medical instrument technical field, and the utility model discloses a diagnosis bed, and the one side of diagnosis bed is rotatably connected with the rotating plate, and the one end fixedly connected with the headrest frame of rotating plate is away from diagnosis bed, and the one side of diagnosis bed and located the below fixedly connected with L type board of rotating plate, and the angle adjusting assembly is arranged between L type board and rotating plate, and the worm is rotated through the rotation knob no.

The invention relates to the technical field of artificial intelligence, and provides an eosinophilic gastroenteritis typing system and method based on multi-modal data, and the method comprises the steps: obtaining a digestive endoscopy image, an ultrasonic endoscopy image, a CT examination image and clinical manifestation data of a to-be-detected person collected in the same time period; the gastrointestinal mucosa lesion state is recognized through a digestive endoscopy image and is represented by numerical features; identifying the abnormal thickening condition of each film layer structure of the gastrointestinal wall through an ultrasonic endoscope image, and representing the abnormal thickening condition by numerical features; lesion hierarchical distribution is judged through an ultrasonic endoscope image, and numerical feature representation is carried out; determining seroperitoneum and intestinal wall thickening conditions through a CT examination image, and performing numerical characteristic representation on the seroperitoneum and intestinal wall thickening conditions; clinical symptom features are obtained through the clinical manifestation data and are represented by numerical features; generating a feature vector based on multi-modal data by using each numerical value feature representation; and inputting the feature vectors into a dynamic typing prediction model to realize the typing prediction of eosinophilic gastroenteritis, thereby improving the accuracy of auxiliary diagnosis and evaluation.

The utility model provides an upper limb lifting support for CT examination, and belongs to the technical field of medical instruments. The problem of how to improve the scanning imaging effect while ensuring the comfort is solved. The upper limb lifting support for the CT examination comprises a fixed plate, a positioning rod, a hand supporting rod, a locking piece and a movable plate hinged to the fixed plate, one end of the positioning rod is hinged to the fixed plate, and the other end of the positioning rod is in sliding connection with the movable plate and is locked and positioned with the movable plate through the locking piece. The hand supporting rod is connected to the movable plate in the transverse direction, and the two ends of the hand supporting rod protrude out of the two side walls of the movable plate. According to the upper limb lifting support for CT examination, the scanning imaging effect can be improved while the comfort is guaranteed.

The application discloses a CT dose self-adaptive optimization system and method thereof, and belongs to the technical field of medical images, which comprises a CT scanner, an image data processing workstation, a high-risk population analysis device, a dose parameter self-adaptive optimization device, a dose parameter automatic adjustment device and an intelligent learning unit, and based on the theory of information geometry, the dose parameter optimization problem is promoted from the Euclidean space to the Riemannian manifold space, the dose parameter manifold and the image quality manifold are constructed, the geodesic line is calculated on the manifold through the Fisher information matrix as the Riemannian metric, and the optimal dose path is found. The system adopts a double-manifold collaborative optimization mechanism, establishes a mapping relationship between the two manifolds, and realizes accurate optimization of parameters in combination with a geometric-guided genetic algorithm, and through pre-scanning, high-risk population analysis, information geometry optimization and automatic parameter adjustment, individualized dose control is realized, the radiation dose is additionally reduced by 30-45% compared with a traditional method, the image quality is maintained or improved, and the safety of CT examination is remarkably improved.

The utility model provides an oxygen tank support for a CT machine tool. The oxygen tank support comprises an objective table, a support body and a vacuum adsorption assembly. The objective table comprises an objective plate, an oxygen tank socket arranged on the upper end face of the objective plate and a track plate arranged on the lower end face of the objective plate. The frame body comprises supporting legs for supporting the carrying plate and universal rolling wheels arranged at the bottoms of the supporting legs; the vacuum adsorption assembly comprises a vertical telescopic rod sliding along the track plate, a connecting base connected with the vertical telescopic rod and rotating on the horizontal plane, a rotating shaft base fixed to the bottom of the connecting base, a connecting shaft connected with the rotating shaft base and a vacuum suction cup arranged at the bottom of the connecting shaft. The vacuum suction cup is provided with an extraction opening connected with an external vacuumizing device and an air nozzle used for recovering normal pressure and provided with a sealing cover, and a one-way air valve in the air outlet direction is arranged at the extraction opening. The oxygen tank support for the CT machine tool is reasonable in structural design, convenient to use and suitable for the situation that an oxygen tank needs to be carried about in the CT examination process, and safe and stable bearing of the oxygen tank in the CT examination process is achieved.

The invention belongs to the technical field of artificial intelligence assisted medical treatment, and particularly relates to a PET / CT tumor imaging examination result prediction system based on a large language model. The system comprises an input module used for inputting information of a patient; the prediction module is used for analyzing the information of the patient according to the large language model to obtain a prediction result that the patient is possibly positive in PET / CT tumor imaging examination; and the output module is used for outputting the prediction result. The method can assist a doctor in deciding whether a patient needs to be subjected to PET / CT examination or not, so that the PET / CT examination is more reasonable, and the positive rate of the PET / CT examination is effectively improved. Therefore, the method has a good application prospect.

The utility model discloses a CT examination leg supporting device convenient to adjust, and belongs to the technical field of CT examination leg supporting. Comprising a protective belt, the protective belt is of a concave structure, two anti-falling belts and a plurality of mounting strips are sewn on the protective belt, a rotary adjusting assembly is mounted on the protective belt in an inserted mode through the anti-falling belts and comprises a first protective plate and a second protective plate, the second protective plate is fixedly connected with a rotating rod, the rotating rod is rotationally connected with the first protective plate, and the first protective plate is fixedly connected with the second protective plate. The device can be used for CT examination of the knee of the leg of a patient, the knee is sleeved with the protection band of a concave structure, the thigh and the shank are bound through the binding bands arranged up and down at the same time, a rotary rod drives a second protection plate to rotate along a first protection plate by rotating a rotary knob, and due to the fact that the rotary knob is elastically clamped with a positioning round block, the friction limiting function is formed; therefore, the bending degree of the thighs and the shanks can be quickly and conveniently adjusted, and use and installation are extremely convenient.

The simple disinfection device for the CT examination couch comprises an upper shell, a lower shell, a hose, a first conduction mechanism and a second conduction mechanism, a cavity is formed in the upper shell, and a partition plate is arranged in the cavity and divides the cavity into a liquid storage cavity A and a liquid storage cavity B from top to bottom; the bottom of the lower shell is provided with two layers of bottom walls which are arranged at intervals, an interlayer used for containing disinfectant is arranged between the two layers of bottom walls, and the outer side bottom wall is provided with a plurality of capillary holes through which the disinfectant can penetrate out of the interlayer; the lower shell is fixedly connected to the lower end of the upper shell; the first conducting mechanism is arranged in the cavity of the upper shell and used for blocking or opening the communicating hole; the second conduction mechanism is arranged in the cavity of the upper shell and used for blocking or opening the liquid outlet hole. The CT examination bed surface disinfection device is used for disinfecting the bed surface of a CT examination bed after CT examination of a patient is completed, and has the advantages of being convenient, fast, time-saving and labor-saving compared with an existing method for wiping the bed surface of the CT examination bed through disinfection tissues.

The invention discloses an adjustable CT examination body position fixing device, and relates to the technical field of medical auxiliary instruments, the adjustable CT examination body position fixing device comprises a basic support, the outer side wall of the basic support is provided with a mounting structure used for being detachably connected with a CT scanning bed; the guide rails are symmetrically installed on the two sides of the top of the foundation support, and sliding blocks distributed at intervals are arranged on each guide rail; the positioning module is located in the basic support and used for making contact with and supporting the body part of the patient, and the positioning module comprises an arm support, a leg pad, a headrest and a body side supporting plate; by means of a modularized adjusting framework with clear division of labor, personalized fixation of all parts of the whole body of a patient can be rapidly completed, the operation complexity is reduced, movement of the patient is reduced to the maximum extent through all-around stable supporting, and the patient can be more conveniently and rapidly fixed. And the success rate of obtaining high-quality diagnosis images is improved.

The invention relates to the technical field of medical equipment, in particular to a follow-up protective lead skirt for a CT (computed tomography) examination couch, which comprises a lead skirt main body, and the lead skirt main body comprises a bedding layer and side turning layers connected to two sides of the bedding layer. A sliding connection mechanism is arranged at the bottom of the bedding layer and used for being matched with sliding grooves in the two sides of a CT examination bed, so that the lead skirt body moves along the sliding grooves. A fixing mechanism is further arranged between the side turning layer and the bedding layer and used for fixing the turned side turning layer, and wrapping protection surrounding the patient is formed. Through the design that the sliding connection mechanism at the bottom of the bedding layer is matched with the sliding groove of the CT examination bed, the lead skirt body can synchronously move along with the examination bed, and medical staff do not need to repeatedly and manually move or adjust the position; surrounding type protection of key parts of a patient is achieved through folding and locking, folding and fixing operation of the side turning layer is visual, simple and convenient, and the possibility that technical personnel omit a protection process due to tedious operation steps is reduced.

This utility model discloses an auxiliary device for reducing X-ray beam hardening artifacts in neck CT examinations, belonging to the field of CT examination. It includes a headrest with an upward-facing head groove and a neck groove communicating with the head groove on its side wall. Two shoulder protrusions are located on one side of the neck groove opening, on either side of the opening. A water-filled cavity is located inside the headrest. The headrest is installed on a CT examination bed. When an examination is needed, the person lies on the CT examination bed with their head and neck placed in the head groove and the two shoulder protrusions located above the shoulders. The headrest conforms to the neck and shoulders, thus minimizing the appearance of X-ray beam hardening artifacts at the junction of the neck and thoracic inlet.

The invention relates to the technical field of medical equipment, and discloses a trachea cannula anti-slip positioning assembly for CT examination, a mask and a radial locking component, the radial locking component is arranged on the mask, the radial locking component comprises a base and a screwing piece, the base is hollow, and the screwing piece is annular. When the screwing piece is screwed, the screwing piece can drive the guide table to rotate, the fixing base can push the fixing plate and the elastic plate to rotate on the fixing base through the inclined face of the fixing base, then downward pressure is formed by the elastic plate, the force for pulling the inserting pipe outwards is effectively resisted, the screwing piece can further drive the fixing claw to move in the axial direction of the base, and the fixing claw can be driven to move in the axial direction of the base. The cannula can be fixed in the radial direction through the multiple fixing claws close to one another, and the device provides good fixing force through double mechanical locking of radial holding and axial pressing.

The embodiment of the present application relates to the technical field of image segmentation, and specifically discloses an otolaryngology CT examination image segmentation method and system. The embodiment of the present application collects public CT images of otolaryngology based on big data technology, and performs privacy processing, expansion and labeling processing; a basic segmentation architecture is selected to construct an image segmentation model; the target CT image is subjected to image preprocessing and initial segmentation processing to generate a plurality of initial segmentation images; the initial segmentation images are imported into the image segmentation model, a plurality of model segmentation images are exported, and fine adjustment is performed to generate a plurality of fine segmentation images. The image segmentation model can be constructed, the target CT image can be subjected to image preprocessing and initial segmentation processing, and then the image segmentation model is used for image segmentation and fine adjustment to generate a plurality of fine segmentation images, so that automatic and accurate otolaryngology CT examination image segmentation can be realized, the cost is reduced, the time consumption is short, and the real-time demand in a clinical environment can be met.

This invention discloses a radial permanent magnet levitation bearing system for a high-speed direct-drive CT scanner, belonging to the field of magnetic levitation bearing technology. The bearing system comprises an inner ring system and an outer ring system similar to rolling bearings, consisting of a stator permanent magnet double semi-ring, a rotor permanent magnet ring, left and right auxiliary mechanical control and protection bearings, and multiple integrated bases. The stator permanent magnet double semi-ring is specially cut and rotated, and is concentrically fitted with the rotor permanent magnet ring with a clearance fit. The auxiliary bearings form a preloaded protection system. Stable levitation by permanent magnet force is achieved through mechanical control, eliminating the need for an electronic control system. The CT scanner motor rotor and stator are fixedly connected to the inner and outer ring systems of the radial permanent magnet levitation bearing, respectively, serving as magnetic levitation support for the CT scanner motor rotor. This bearing system ensures high-speed and stable operation of the CT scanner, increases its operating speed and service life, reduces operating noise, shortens CT examination time, and is suitable for medical and health environments, laying a theoretical foundation for the development of magnetic levitation CT scanners.

The utility model relates to a non-examination part protection device for CT (Computed Tomography) examination, which comprises a shell arranged on an examination bed, the shell is of a semicircular structure with the middle part sunken downwards, and the two ends of the shell are respectively positioned on the two sides of the examination bed; a containing cavity is formed in the shell, and a semicircular baffle is arranged in the containing cavity in a sliding fit mode. A through opening communicated with the containing cavity is formed in one end of the shell, one end of the baffle can slide out of the containing cavity through the through opening to be connected with the other end of the shell, and a space for a patient to lie flat is formed between the baffle and the examining table. Under the condition that the baffle is not used, the baffle is located in the containing cavity in the shell, under the state, the position over the examination couch is not blocked by the baffle, a patient can directly lie down conveniently, on one hand, the baffle cannot block the lying down of the patient, on the other hand, the baffle can be contained in the shell through sliding fit of the baffle and the containing cavity, and therefore the examination couch is convenient to use. And the occupied space can be effectively reduced.

The utility model provides a fixing device for leg CT (Computed Tomography) examination. Comprising a base, a clamping plate and a fixing plate are rotationally arranged at the top of the base, a clamping strip matched with the clamping plate is fixed to the bottom of the fixing plate, two rotating discs are rotationally arranged on the fixing plate, and a first fixing shell and a second fixing shell are hinged to the two rotating discs correspondingly; memory sponge is fixed to the inner wall of the first fixing shell and the inner wall of the second fixing shell, and clamping blocks are fixed to the first fixing shell and the second fixing shell. The fixing device for the leg CT examination solves the problems that when an existing CT equipment scanning bed carries out CT imaging on the legs of a patient, the legs of the patient are difficult to adjust, due to the fact that the legs cannot be fixed, the special body positions of the legs are difficult to keep, it cannot be guaranteed that the lower limbs of the patient keep a certain posture, and the patient feels uncomfortable. Offset is easily caused in the imaging process, and the imaging effect of the lower limbs of the patient is affected.

The invention relates to a cardiovascular disease risk cycle assessment method based on big data, and the method is characterized in that the method comprises the steps: obtaining a preliminary diagnosis result through correlation analysis and a support vector machine model according to the basic information and symptom performance of a patient; according to comprehensive information such as electrocardiograms, echocardiograms, blood examination and CT examination, the cardiovascular conditions are classified through a correlation analysis algorithm and a Bayesian classifier. Physiological indexes such as electrocardio, blood pressure and blood fat are monitored regularly, a physiological change period is obtained, and influences of factors such as diet, exercise and emotion on the physiological change period are analyzed. Based on the electrocardiogram period, the blood pressure fluctuation period and the blood fat change period, an ARIMA model is established to predict the lesion period. And further fusing surgical treatment, drug treatment, lifestyle adjustment and psychological treatment schemes, and constructing a recurrence probability and recurrence cycle prediction model by combining basic information and physiological change cycle of the patient. And finally, dynamically adjusting a monitoring period according to a prediction result, and providing a monitoring result and personalized adjustment suggestions for a doctor or a patient through a medical system, thereby realizing periodic and dynamic assessment and management of cardiovascular disease risks.

The utility model relates to the technical field of medical equipment, and particularly discloses an oral cavity CT medical vehicle which comprises a vehicle head and a compartment. The vehicle head is mounted in front of the compartment; a first compartment and a second compartment are arranged in the compartment, the first compartment and the second compartment are arranged side by side, and the first compartment is communicated with the second compartment through a movable door; the first compartment is close to the rear part of the carriage, and the second compartment is close to the front part of the carriage; an outlet is formed in the rear of the compartment; a center console is arranged in the first compartment, a vertical oral cavity CT instrument is arranged in the second compartment, and the vertical oral cavity CT instrument is controlled by the center console. According to the medical compartment, examination equipment and an operation area are integrated into a whole, so that the turnover time of a patient among different examination places is shortened, oral CT examination can be quickly completed, the patient can obtain a diagnosis result more quickly, follow-up treatment can be carried out in time, and illness state delay is avoided.

The invention discloses an auxiliary transfer device for CT examination, and relates to the technical field of medical auxiliary equipment.The auxiliary transfer device comprises a telescopic base, telescopic rods are arranged on the periphery of the upper side of the telescopic base, an auxiliary transportation device is arranged on the upper side of the telescopic base, and an adjustable protection structure is arranged in the middle of the auxiliary transportation device; and a variable supporting structure is arranged on the lower side of the auxiliary transportation device. The first servo motor is used for driving to achieve multi-stage stretching of the platform, the universal joint guarantees synchronous linkage, a patient is stably transferred, labor and collision risks are reduced, efficiency is improved, different requirements are met, the double servo motors and the like achieve protection baffle adjustment, the patient is prevented from sliding off, the patient can be stably pulled out, positioning is accurate, flexibility is high, safety and comfort are enhanced, and the medical care platform is suitable for being popularized and applied. By means of the electric telescopic rod and the like, the device becomes a wheelchair, seamless transfer is achieved, the process is stable, the structure is stable, extra tools are not needed, the pain of a patient is relieved, and the application range is widened.

The utility model discloses a movable CT (Computed Tomography) examination device which comprises a base, a plurality of universal wheels are arranged at the bottom of the base, a scanner is arranged on the base, a scanning opening is formed in the scanner, an X-ray tube and a detector array are respectively arranged at the top and the bottom of the scanning opening, and a detector is arranged on the X-ray tube. A supporting seat is fixedly connected to the top of the base, a bed body is fixedly connected to the top of the supporting seat, a support is fixedly connected to the end, close to a scanning opening, of the bed body, a head support is fixedly connected to the top of the support, a storage cavity is formed in the other end of the bed body, and an expansion plate is arranged in the storage cavity. One end of the expansion plate is fixedly connected with a handle, and positioning mechanisms are arranged on the front side and the rear side of the supporting seat. The movable medical bed can be moved and can be effectively positioned after being moved to prevent slipping and displacement, and the overall length of the bed body can be expanded and adjusted, so that the movable medical bed can be suitable for patients with different heights and body types.

The utility model relates to the field of CT examination couch, and discloses a CT examination couch auxiliary device which comprises a base, the upper surface of the base is fixedly connected with a plurality of telescopic rods, the base is slidably connected with a moving seat through the telescopic rods, the upper surface of the base is rotatably connected with a threaded column, and the threaded column is slidably connected with the moving seat through the telescopic rods. The outer surface of the threaded column is in screwed connection with a sleeve, the sleeve is fixedly connected to the lower surface of the moving seat, the upper surface of the moving seat is in sliding connection with a moving plate, and the upper surface of the moving plate is in sliding connection with a bed plate; according to the examination bed, the height of the bed board can be conveniently reduced, so that a patient with mobility difficulty can easily lie on the examination bed, the bed board can be rapidly moved, the patient on the bed board can be rapidly and accurately moved to a proper position, and the accuracy of a shooting result and the examination efficiency are improved.

1. The name of the design product: the graphical user interface of oral and maxillofacial radiographic image observation and analysis of electronic equipment. 2. The use of the design product: an electronic device. 3. The design points of the design product: the graphical user interface. 4. The picture or photo that best shows the design points: design 3 front view. 5. Design 3 is designated as the basic design. 6. The use of the graphical user interface: the graphical user interface for running software programs and completing the operation of the oral corresponding position radiographic software reading system. 7. The human-computer interaction mode of the graphical user interface: design 1 front view shows the MPR function, MPR is a multi-planar reconstruction processing mode attached after CT examination, in order to observe the lesion, display the lesion, and serve for clinical diagnosis; design 2 front view shows the section function, which is an image reconstruction post-processing mode attached after CT examination, in order to observe the lesion, display the lesion, and serve for clinical diagnosis; design 3 front view shows the TMJ function, which displays the image reconstruction picture of the temporomandibular joint after CT scanning, in order to observe the lesion, display the lesion, and serve for clinical diagnosis. Design 4 front view shows the CEPH function, which is the image reconstruction picture of the lateral cephalogram in oral medicine, which helps doctors observe the relationship between the patient's craniofacial skeleton, teeth and soft tissue through X-ray imaging, and provides basis for developing correction scheme or surgical plan.

The invention discloses a vision-based CT (Computed Tomography) examination monitoring and bottleneck identification method and a vision-based CT examination monitoring and bottleneck identification system. According to the method, video data of a CT examination area and process log data in a hospital information system are obtained in real time, an improved lightweight target detection model is used for identifying and tracking personnel behaviors, and behavior data including positions, tracks and staying time are generated; performing space-time alignment and semantic fusion on the behavior data and the process log, and constructing and continuously updating a dynamic value flow graph; automatically identifying a flow bottleneck and an efficiency waste point through time sequence mode analysis and resource load evaluation on the basis of the graph; and finally, in combination with a preset rule and a real-time resource state, generating and pushing graded early warning and executable process optimization suggestions. The system comprises corresponding function modules. According to the invention, the whole-process, visual and intelligent monitoring and optimization of the CT examination process are realized, and the operation efficiency and service capability of the radiology department are remarkably improved.

The utility model discloses a body position pad for combined CT (Computed Tomography) examination of neck and chest, the bottom surface of the body position pad is matched with a CT examination bed, the body position pad comprises a body back section and a neck shoulder section, the body back section is used for supporting the body, the neck shoulder section is integrally formed with the body back section and is used for supporting the neck, and the body back section is used for the examinee to lie flat. A neck positioning groove is formed in the middle of the neck and shoulder section, the top face of the neck and shoulder section is higher than the top face of the body back section by a certain distance so as to limit the shoulders from protruding upwards, when a subject lies flat, the neck positioning groove keeps normal physiological bending of the cervical vertebra and keeps the neck and the chest flush, the head can naturally lean backwards under the action of gravity, the lower jaw naturally lifts upwards, and the neck is in an over-stretching position as a whole. The body position pad can help a patient to better meet the body position requirement of the neck and chest combined CT examination, avoids or reduces artifacts caused by shoulders to the thyroid gland of the neck, is suitable for the neck and chest combined CT examination of the thyroid cancer patient, and is particularly suitable for the thyroid gland CT examination.

The utility model discloses a CT (Computed Tomography) examination lower limb auxiliary fixing pillow which comprises a shell, two U-shaped lower limb fixing grooves are formed in the shell through a partition plate, a rotating shaft is arranged on one side of the shell, a cover plate is rotationally connected through the rotating shaft, and a U-shaped lining block is arranged on the inner wall of the cover plate; velcro adhesive tapes are arranged at the two ends of the side wall of the cover plate. Two connecting belts are fixedly arranged on the shell at the outer side end of the fixing groove, a pressurizing sleeve belt is fixedly connected with each connecting belt, an inflating pipe is connected with the pressurizing sleeve belts in a penetrating manner, and an inflating bag is connected through the inflating pipe. The interior of the shell is of a hollow structure, the shell is filled with water, and a heat conduction silica gel plate is arranged at the bottom of the shell. According to the utility model, the legs of a patient can be conveniently and stably fixed on the examination bed, the operation is simple and convenient, and the practicability is strong.