46 results about "Whole Body Scanning" patented technology

Multiple methods of performing whole body scans using a cost-effective small magnetic resonance imaging (MRI) system are disclosed. High magnetic field homogeneity of an open, small MRI is obtained by a combination of passive shimming and high order active shimming. A dynamic shimming while imaging (DSWI) method is provided to dynamically optimize field homogeneity for each scanned slab (slice) during imaging. Also provided is a method that scan a large subject volume only using a limited optimal imaging region of a magnet by continuously adjusting patient position and orientations with a 6 degrees of freedom patient table.

The invention discloses a simple and high-efficient three-dimensional human body reconstruction method based on a single Kinect. The three-dimensional human body reconstruction method comprises the following steps of 1) acquiring point cloud; 2) carrying out point cloud pretreatment; 3) carrying out local aligning; 4) carrying out global aligning; and 5) carrying out surface reconstruction. A user can easily realize three-dimensional human body modeling in a narrow space, such as a home room or an office room, and only a personal computer and a Kinect are needed. In order to make the human body modeling become rapid, accurate and convenient, the invention provides an effective whole body scanning data acquisition strategy. Through six angles, three frame scanning is performed for each angle so that the human body can be completely covered. Point cloud data processing captured by the Kinect includes two steps of the local aligning and the global aligning. The new three dimensional human body modeling method can be suitable for most of applications, such as digital measurement, a product design and on-line shopping.

The present invention includes a method and apparatus for high sensitivity whole body scanning using MR imaging. The invention includes acquiring MR data as the patient moves through the iso-center of the magnet while providing interactive control for the operator to change scan parameters and table motion and direction. The technique allows efficient whole body scanning for fast screening of abnormalities while allowing operator control during the screening process to interrupt table motion and redirect the speed and direction of the table while also allowing control over the acquisition plane, number of sections imaged, inter-section spacing, and the scan location.

The invention relates to the field of engineering physics in particular to the technique for detecting X-radiation, and it may be used for photometry, dosimetry as well as for measuring of space energy characteristics of optical-and-ionizing radiation fields with the aim of body X-ray scanning, human body in particular, to identify thereon or therein some highly undesirable objects or substances both for medical and security applications i.e. to prevent thefts and acts of terrorism and to provide the security of residential and other buildings that is in airports, banks and other high-risk areas. The X-ray screening of the body is realized by means of scanning it with a pre-shaped collimated bunch of X-radiation of low intensity due to moving the body and a source of X-radiation provided relative to one another, reception of X-radiation transmitted by the body, shaping and analysis of the image in its electronic form. It is the aim of the present invention to design a method and an apparatus which alongside with being safe and efficient make it possible to provide full body scanning with high precision. The aim set forth has been achieved by shaping the bunch of X-radiation as a single flat beam while X-radiation received at each scanning instant and converted into visible light radiation is in its turn converted into digital electronic signals. The radiation detectors filed are featuring a decreased noise level alongside with increased sensitivity and precision for registration of the intensity of X-radiation and also an extended dynamic range of X-radiation intensity values being registered which makes it possible to provide implementation of the method and the apparatus filed in the most advantageous way.

A magnet primarily for use in MRI applications comprises a pair of poles oriented about a plane of symmetry parallel to each therebetween defining an air gap region, magnetic field sources secured on the surfaces of the poles opposite the air gap that have yokes disposed on them, the yokes connected to each other by returns so that the entire magnet assembly can form a closed magnetic flux circuit to substantially confine the magnetic fields generated by the apparatus in the air gap where an imaging region is formed to place subjects for the purposes of examination. The main assembly being cylindrical in geometry has permanent magnets for magnetic field sources that are composed of two regions, a central disk-like portion magnetized substantially along the axial direction and an outer ring-like region magnetized substantially along the radial direction extending axially to form part of the pole together producing a very efficient and even flux distribution throughout the entire magnet assembly with minimal flux leakage. A further means of reducing flux leakage is incorporated in the yokes which have two sections, a disk-like region and an ring-like section to enclose the permanent magnets. The poles are made of multiple sections with a central disk-like region and an outer ring-like region that is a combination of permanent magnets and high permeability materials. This magnet assembly can achieve 1.0 Tesla or greater magnetic fields for whole-body scanning without saturating the magnet pole and other structures.

The invention provides a human body three-dimensional data collecting system and method based on the light coding technology. The human body three-dimensional data collecting system comprises a rotary disc. Supports are arranged on the periphery of the rotary disc, a whole-body scanner, a half-body scanner and a face five-sense-organ scanner are installed on the three supports respectively, data lines at the tail ends of the three scanners are connected into a computer, and a matched software tool for model collecting, fusing, repairing and strengthening is arranged in the computer. The human body three-dimensional data collecting system is simple in structure, low in cost, high in accuracy and short in scanning time, the advantages of the scanners in different types are combined, division operation is adopted, the aim is explicit, and high-accuracy human body characteristic three-dimensional models of the five sense organs of the human body face, the head outline, hair details, the whole-body surface outline and the like can be obtained; a high-accuracy human body three-dimensional model can be obtained by fusing and splicing the characteristic three-dimensional models collected through the different scanners through software, and follow-up model processing is avoided; the multiple scanners work at the same time, and the scanning time is greatly shortened.

A PET gantry and a CT gantry are placed in parallel such that the CT gantry becomes remoter to a common examination couch having a movable couch table top board mounted with a subject person and the CT gantry is made to be movable. The gantries are controlled by a control portion in a console. At first, the CT gantry is moved in a left direction to separate from the PET gantry so that whole body CT scan is carried out for the subject person in a direction from the leg portion to the head portion. Successively, the subject person is passed through a tunnel portion from the leg portion to the head portion by moving the couch table top board in a right direction in a state of considerably separating the CT gantry from the PET gantry to thereby carry out whole body PET scan.

An X-ray examination station includes a first source of X-ray radiation for whole body scanning of a human body using a first fan beam of X-ray radiation; a first vertical linear radiation detector configured to detect the first fan beam; a second source of X-ray radiation installed at mid-height of a person being examined, for scanning a central portion of the human body using a second fan beam of X-ray radiation; a second vertical detector of X-ray radiation configured to detect the second fan beam; and a control unit configured to turn on each of the X-ray radiation sources. The first and the second radiation fan beams are emitted in parallel planes. The first X-ray radiation source is turned on for the whole body scanning. The second X-ray radiation source is turned on for scanning the central portion of the body.

A cryogenically-cooled superconducting RF head-coil array which may be used in whole-body MRI scanners and / or in dedicated, head-only MRI systems. An RF head-coil array module may comprise a vacuum thermal isolation housing comprising a double wall hermetically sealed jacket that (i) encloses a hermetically sealed interior space under a vacuum condition, and (ii) substantially encloses an interior chamber region that is separate from the hermetically sealed interior space and is configured to be evacuated to a vacuum condition. A plurality of superconductor radiofrequency coils are disposed in the interior chamber region, and each radiofrequency coil is configured for at least one of generating and receiving a radiofrequency signal for at least one of magnetic resonance imaging and magnetic resonance spectroscopy. At least one thermal sink member may be disposed in the interior chamber region and in thermal contact with the superconductor radiofrequency coils. A port is configured for cryogenically cooling the thermal sink members.

The invention provides a medical CT (computed tomography) machine, which can realize the whole body scanning in a standing state. The medical CT machine comprises a scanning host machine, wherein the scanning host machine is provided with a scanning hole allowing a human body to enter, the scanning hole extends in a vertical direction for forming a human body accommodating cavity, and the scanning host machine is connected with an ascending and descending device used for driving the scanning host machine to ascend and descend. The direction of the human body accommodating cavity is the same as the human body supporting direction by the ground, so the human body can directly sand or sit on the ground, components for supporting the human body are prevented from entering the scanning hole, fake images cannot be generated, and the scanning agent quantity addition for generating clearer images is also not needed. When the human body is in the standing body posture, the symptoms such as knee joint standing pain only generated in the standing or sitting posture can be more really shown, the effective examination and pain part state confirmation can be conveniently carried out, the ascending and descending device can drive the scanning host machine to ascend and descend, different positions of the human body are scanned under the condition that the human body stilly stands, and the whole body scanning is realized.

The present invention provides a magnetic resonance imaging system making use of low resolution, whole-body plan scan image of a body. The whole-body plan scan image is exploited to gather a plurality of individual information of a body that is essential for an optimization of acquisition parameter for acquisition of a high resolution and high quality image of a region of interest of the body. Moreover, the whole-body plan scan image is used in order to facility a determination and a selection of a region of interest to be performed by an operator. Additionally, the MRI provides effective means for autonomously identifying specific body parts or even organs of a patient. Providing the entire information that can be extracted from the whole-body plan scan image to the operator effectively simplifies the workflow of the operator in an intuitive way. Preferably, during acquisition of the low resolution whole-body plan scan image, necessary calibration parameters for acquisition of the final high resolution image are obtained.

A superconducting RF coil array which may be used in whole body MRI scanners and / or in dedicated MRI systems. Some embodiments provide a superconducting RF coil array for at least one of receiving signals from and transmitting signals to a sample during magnetic resonance analysis of the sample, the superconducting RF coil array comprising a thermally conductive member configured to be cryogenically cooled, and a plurality of coils elements comprising superconducting material, wherein each coil element is thermally coupled to the thermally conductive member and is configured for at least one of (i) receiving a magnetic resonance signal from a spatial region that is contiguous with and / or overlaps a spatial region from which at least one other of the plurality of coil elements is configured to receive a signal and (ii) transmitting a radiofrequency signal to a spatial region that is contiguous with and / or overlaps a spatial region to which at least one other of the plurality coil elements is configured to transmit a radiofrequency signal.

A phantom and associated method for calibrating registration in a multi-modal medical diagnostic imaging system are presented. The phantom features a plurality of emission point sources arranged in multiple parallel planes along the length of the phantom, with enough planes to allow mode registration to be calibrated over the length of an entire full-body scan. According to the method, calibration scans are performed at each of several scan positions along the length of the phantom, with at least two planes of emission point sources covered by the scan at each position.

The invention discloses a whole body scanning device and scanning method based on 3D imaging technology. The whole body scanning device comprises a tray, a supporting part, a rotating device, a supporting rod and at least three 3D cameras, the tray is installed on the supporting part through the rotating device, and the tray horizontally rotates around the axial line of the rotating device on thesupporting part through the rotating device; the supporting rod is vertical to a plane where the tray is located; the at least three 3D cameras are longitudinally arranged on the supporting rod side by side; and the shooting direction of the 3D cameras is a point from the 3D camera to the axial line. By adoption of the whole body scanning device and scanning method based on 3D imaging technology provided by the invention, a 3D model of the whole body of a user can be conveniently obtained, the obtained image is clearer, the image obtained by the scanning device is more easily post-processed, and the size of the body of the user can be obtained through the 3D model.

A whole-body transmission x-ray scanner includes an x-ray source, an x-ray camera, a controller, and a positioner aligning the source and camera to point x-rays towards the camera and moving the source and camera synchronously to scan and acquire radiographic images of an object located therebetween. The positioner includes a closed-loop cable alignment assembly fixed to the source and to the camera to maintain alignment of the source and camera during a scanning mode in which the source and camera move from one end of the object to another end. The positioner includes a motor controlled by the controller, a bi-directional crossover slide track bearing assembly connected to the source, and a conveyor connected to the motor and bearing assembly such that, actuation of the motor by the controller moves the slide track bearing assembly in a loop that correspondingly move the source and camera along a single linear axis.

The invention discloses a detector in a nuclear medicine diagnosis device and a using method thereof, relates to the technical field of nuclear medicine, and aims to solve the problem of cost increase of a positron emission tomography (PET) detector caused by improving spatial resolution of an image in the prior art. The detector in the nuclear medicine diagnosis device comprises a scintillator crystal, a photoelectric detector, a front-end electronic circuit and a main computer, wherein the proportion of the area of a coupling surface of the scintillator crystal to the area of a coupling surface of the photoelectric detector is less than 1 to 1; the scintillator crystal is optically coupled to the photoelectric detector; and the photoelectric detector is connected to the main computer through the front-end electronic circuit. The detector in the nuclear medicine diagnosis device and the using method thereof provided by the embodiment of the invention can be applied to medical scanners such as a body scanner of PET, a body scanner of single-photon emission computed tomography (SPECT), an animal scanner, an organ scanner and the like.

The invention discloses optical inspection equipment which comprises an inspection table with an inspection cavity body, and a dust collector at an equipment passageway of the inspection cavity body. According to the optical inspection equipment, the dust collector is added to the equipment passageway, through which a base plate goes in and out of the inspection table, and the base plate can be subjected to dust collection in a whole-body scanning manner through the dust collector when entering the inspection table through the equipment passageway, so that a good cleaning effect on the surface of the base plate is achieved, and the problem of misjudgment of an optical inspection result caused by small particles such as dust remained on the surface of the base plate due to a poor cleaning effect in a process of optically inspecting the surface of the base plate by the optical inspection equipment is solved. Due to the optical inspection equipment, the surface of the base plate can be subjected to dust collection in real time by the dust collector before the base plate is optically inspected, thereby avoiding misjudgment caused by remained particles.

The invention relates to a whole-body scanning phototherapy apparatus and belongs to the technical field of medical apparatuses and instruments. The whole-body scanning phototherapy apparatus comprises a main body, wherein a tempered glass lying plate installing opening is formed in the upper side of the main body, a tempered glass lying plate is arranged in the tempered glass lying plate installing opening, a patient pillow is arranged on the rear side of the tempered glass lying plate installing opening, a comfortable soft cushion is arranged on the patient pillow, a head protection cover is arranged on the rear side of the patient pillow and is connected with the main body through a hinge, a protection lens is arranged on the head protection cover, a shake-proof base is arranged on the lower side of the main body, and main body legs are arranged on the lower side of the shake-proof base. The whole-body scanning phototherapy apparatus is complete in functions and convenient to use, is capable of saving time and labor, complete in functions, safe, efficient, intelligent and accurate when a medical worker conducts illumination treatment on a patient having a skin disease, and the working difficulty of the medical worker is reduced.

The invention discloses a clinical three-dimensional imaging examination device for the radiology department. The device comprises a base, a high pressure generator is arranged at the left side of theupper surface of the base, and a starting switch is arranged on the portion, close to the high pressure generator, of the left side of the upper surface of the base; a supporting rack is arranged atthe right side of the upper surface of the base, a PLC is arranged at the upper end of the supporting rack, and an illumination switch is arranged on the portion, close to the supporting rack, of theupper surface of the base; a cylinder body is arranged in the middle of the upper surface of the base, guide rails are vertically arranged at the left and right sides of the bottom in the cylinder body, and linear motors are slidingly clamped to the side surfaces of the guide rails; an annular rack is arranged between the two linear motors, a fixing plate is arranged at one side in the annular rack, and a mounting groove is formed in the side surface of the fixing plate; an X-ray tube is arranged in the mounting groove, and a connection plate is arranged at the other side in the annular rack.The clinical three-dimensional imaging examination device for the radiology department is convenient to use, a patient can be quickly subjected to whole-body scanning examination, step-by-step multi-term examination is not needed, and the working efficiency of medical personnel is improved.

The invention relates to a cGAN-based adaptive network enhancement method for a low-dose PET image, and the method comprises the following steps: carrying out the whole-body scanning of a patient injected with a 18F-FDG tracer agent meeting a standard dose, so as to obtain a whole-body PET image of the patient under the standard dose; random partial sampling being carried out on PET original datato reduce the dosage so as to simulate the situation of low-dosage tracer agent injection under the real situation, and then reconstruction parameters which are the same as those during full-dosage PET image reconstruction being adopted to reconstruct the data, including all physical corrections; inputting the reconstructed PET images with different doses and the reconstructed full-dose standard image into a network for training, so that the network can automatically match the PET images with different low doses and obtain an image close to the standard dose; carrying out whole-body scanning on the patient injected with the tracer agent with the dose lower than the standard dose to obtain a PET image under a low dose; and inputting the low-dose PET image into the network model for enhancement, so as to obtain a clear whole-body PET image.

The invention provides a system for analyzing rheumatoid arthritis (RA). The system according to the invention comprises a patient data acquisition module, a data input module and an analysis module,thereby understanding a joint destruction progress of an RA patient and monitoring the treatment effect of diseases in time. According to the system of the invention, a nuclear magnetic resonator utilizes a 3.0T whole-body scanning system realizes higher image resolution through increasing a signal-to-noise ratio by means of an eight-channel head coil. The average scanning time is only 24 minutes,thereby laying a solid basis for later clinical popularization.

The present invention discloses a positioning method of a minimally invasive osseous surgery guiding channel. The method comprises the steps of: (1) arranging a reference point and a reference scale which can be displayed in an X-ray photograph, and taking the X-ray photographs of an area for surgery including the reference point and the reference scale in two dimensions; (2) determining pixel point coordinates of two guiding points in each X-ray photograph according to X-ray photograph data including the reference point and the reference scale in the two photographs; and (3) computing three-dimensional coordinates of the two guiding points according to the taken X-ray photograph data, the reference point, the reference scale and guiding point data, and determining the position and direction of a straight line, that is the guiding channel, connected between the two guiding points. According to the method, the position and direction of the minimally invasive osseous surgery guiding channel can be rapidly determined, a patient only needs to take X-ray photographs for two times, continuous multi-angle X-ray photographs or three-dimensional CT reconstruction via whole-body scanning for determining the position and direction of the guiding channel are not required, and therefore radiation of X-ray or CT scanning on doctors or patients is reduced. The method is simple and practicable.

The present invention provides a CT imaging system. The technical solution improves the receiving ability of the X-ray receiving device and refines the pixels through the structural improvement of the X-ray receiving device, so that even if there is a certain relative displacement between the X-ray emitting device and the receiving device It will not affect its normal imaging, and the signal-to-noise ratio is higher. Based on this technical advantage, the traditional CT device has been redesigned, which greatly simplifies the detection part of the CT device. Only relying on the mechanical movement of the rotating arm and the telescopic arm can detect The subject to be tested performs a full-body scan, thereby simplifying the structure of the device, reducing the overall cost and shortening the testing time. The invention achieves outstanding technical effects with a relatively simple structural mode, is easy to implement, has controllable costs, has obvious technical advantages, and has great promotion prospects.

The invention discloses optical inspection equipment which comprises an inspection table with an inspection cavity body, and a dust collector at an equipment passageway of the inspection cavity body. According to the optical inspection equipment, the dust collector is added to the equipment passageway, through which a base plate goes in and out of the inspection table, and the base plate can be subjected to dust collection in a whole-body scanning manner through the dust collector when entering the inspection table through the equipment passageway, so that a good cleaning effect on the surface of the base plate is achieved, and the problem of misjudgment of an optical inspection result caused by small particles such as dust remained on the surface of the base plate due to a poor cleaning effect in a process of optically inspecting the surface of the base plate by the optical inspection equipment is solved. Due to the optical inspection equipment, the surface of the base plate can be subjected to dust collection in real time by the dust collector before the base plate is optically inspected, thereby avoiding misjudgment caused by remained particles.

The invention discloses a whole body radiotherapy tissue compensation device and a manufacturing method thereof, applied to the technical field of whole body radiotherapy. The whole body radiotherapytissue compensation device is characterized in that non-metallic material is molded by means of a 3D printing technique; the compensation device has an inner surface matching the contour of a human body surface; and the compensation device has an equivalent tissue compensator. The manufacturing method of the whole body radiotherapy tissue compensation device includes the steps: performing whole body CT scanning; generating the contour of the body surface of a patient, based on a CT image of the patient; and according to the contour of the body surface of the patient, generating a compensationdevice drawing of the compensation device, generating a 3D printed file by using a tool software, and printing the compensation device. The whole body radiotherapy tissue compensation device is used for absorbing the irradiation dose of a dose built-up area, and is easy to achieve the aim that the whole body from the body surface to the subcutaneous tissue at a certain depth can accept uniform andaccurate dose of irradiation when whole body radiotherapy is performed on a patient with whole body superficial malignant lesions (Mycosis fungoides), by combining with advanced radiotherapy equipment.