Patent classifications
A61B6/545
INTRAORAL X-RAY SYSTEM
An intraoral x-ray system mountable to a dentist’s office wall including components movable to compensate for defects in the wall’s flatness or the wall not being sufficiently perpendicular to the floor. The system also includes monitoring and compensation capabilities to compensate for drift in the position of the system’s x-ray source or patient movement before and during x-ray imaging, thereby avoiding the need for the taking of additional x-ray images and exposing the patient unnecessarily to extra x-ray dose. Additionally, the system further includes a data/signal processing unit that allows the x-ray source to be precisely moved along a predetermined trajectory and allows the system to perform computed tomosynthesis examinations of a patient. In addition, the x-ray source is attachable/detachable from the system’s robotic arm, with the system compensating automatically for the change in weight at the robotic arm’s end due to removal of the x-ray source.
Systems and methods for controlling motion of detectors having moving detector heads
An imaging system is provided that includes a gantry, at least five detector units mounted to the gantry, a corresponding collimator for each of the detector units, at least one processing unit, and a controller. Each collimator has septa defining plural bores for each pixel of at least some of a plurality of pixels of the detector unit. A corresponding interior septum of the collimator is disposed above an internal portion of a corresponding pixel of the at least some of the plurality of pixels. The at least one processing unit is configured to obtain object information corresponding to the object to be imaged. The controller is configured to control an independent rotational movement of each the detector units used to acquire scanning information by detecting emissions from the object, wherein the controller rotates each of the detector units at a corresponding sweep rate.
Determination of a subject profile with a camera
The invention provides for a medical apparatus (100, 300, 400) comprising a subject support (102) configured for moving a subject (106) from a first position (124) to a second position (130) along a linear path (134). The subject support comprises a support surface (108) for receiving the subject. The subject support is further configured for positioning the subject support in at least one intermediate position (128). The subject support is configured for measuring a displacement (132) along the linear path between the first position and the at least one intermediate position. Each of the at least one intermediate position is located between the first position and the second position. The medical apparatus further comprises a camera (110) configured for imaging the support surface in the first position. Execution of machine executable instructions 116 cause the a processor (116) controlling the medical apparatus to: acquire (200) an initial image (142) with the camera when the subject support is in the first position; control (202) the subject support to move the subject support from the first position to the second position; acquire (204) at least one intermediate image (144) with the camera and the displacement for each of the at least one intermediate image as the subject support is moved from the first position to the second position; and calculate (206) a height profile (150, 600, 604) of the subject by comparing the initial image and the at least one intermediate image. The height profile is at least partially calculated using the displacement. The height profile is descriptive of the spatially dependent height of the subject above the support surface.
Method and apparatus for improved medical imaging
This invention provides a method to optimize an x-ray beam for more than one structure within the field of view. The preferred embodiment comprises a modular construction of a collimator comprising multiple materials of varying thickness. A first attenuation is performed by the first portion of the collimator to optimize a first anatomic feature and a second attenuation is performed by the second portion of the collimator to optimize a second anatomic feature.
Radiation imaging system comprising a plurality of camera apparatuses, radiation imaging control apparatus and control method of radiation imaging system, and medium
A radiation imaging control apparatus is provided that includes a camera imaging control unit configured to control a camera apparatus to image an implementation state of a radiation imaging examination, a subject body shape recognition unit configured to recognize a body shape in an imaging part of a subject by using a camera image imaged by the camera apparatus under a control of the camera imaging control unit, a specifying unit configured to specify a radiation imaging setting related to the radiation imaging examination by using the body shape in the imaging part of the subject recognized by the subject body shape recognition unit, and a selecting unit configured to select the radiation imaging setting specified by the specifying unit as setup information of the radiation imaging examination.
Radiation dose reduction and improved consistency between sessions in hybrid imaging studies
In a multi-session imaging study, information from a previous imaging session is stored in a Binary Large Object (BLOB). Current emission imaging data are reconstructed into a non-attenuation corrected (NAC) current emission image. A spatial transform is generated aligning a previous NAC emission image from the BLOB to the current NAC emission image. A previous computed tomography (CT) image from the BLOB is warped using the spatial transform, and the current emission imaging data are reconstructed with attenuation correction using the warped CT image. Alternatively, low dose current emission imaging data and a current CT image are acquired, a spatial transform is generated aligning the previous CT image to the current CT image, a previous attenuation corrected (AC) emission image from the BLOB is warped using the spatial transform, and the current emission imaging data are reconstructed using the current CT image with the warped AC emission image as prior.
RADIATION SENSOR WITH X-RAY DETECTION
The invention relates to medical imaging and, more specifically, to intraoral dental radiology. The sensor according to the invention includes a series (SPHx) of detection photodiodes for detecting the arrival of an X-ray flash. The series of photodiodes occupies the location of a central column of the matrix of pixels. The signal of the missing pixel in each row can be reconstructed by interpolating the signals provided by the adjacent pixels of the row. The detection photodiodes are identical to the photodiodes of the active CMOS pixels. They are all electrically connected on one side to a reference potential and on the other side to a detection conductor (CD) extending along the series of photodiodes. This detection conductor is connected to a detection circuit (DX) delivering a signal for triggering the capture of an image when the detected current or the variation in this current exceeds a threshold showing that an X-ray flash has been initiated.
Radiographic Imaging System
Radiographic imaging system comprising an x-ray radiation source. Multiple radiographic imaging apparatuses, each including multiple radiation detecting elements, are arranged two-dimensionally, and configured to read charges generated in the radiation detecting elements as image data and transmit an image signal in response to a command. A console communicating with, controlling with a command the operation of, and receiving image signals from, the multiple radiographic imaging apparatuses and acquires multiple radiographing order information items indicating which of the multiple radiographic imaging apparatuses is to be used for conducting radiographing. Upon receiving the image signal from a first of the radiographic imaging apparatuses, the console determines from the multiple radiographing order information items a subsequent radiographing order item to be conducted by the first radiographic imaging apparatus, and sends a first command to the first radiographic imaging apparatus instructing it to conduct the subsequent radiographing order item.
RADIATION IMAGING APPARATUS, RADIATION IMAGING SYSTEM, RADIATION IMAGING METHOD, AND STORAGE MEDIUM
Provided is a radiation imaging apparatus, including: a radiation detector configured to detect radiation; a first detector designation unit configured to designate a first radiation detector; a second detector designation unit configured to designate a second radiation detector registered in the radiation imaging apparatus in advance; and an information control unit configured to associate setting information on the second radiation detector with the first radiation detector after the first radiation detector and the second radiation detector are designated.
X-RAY IMAGING SYSTEM
The present invention relates to an X-ray imaging system (10), comprising an X-ray image acquisition unit (20); and a processing unit (30). The X-ray image acquisition unit is configured to operate in at least one scout scan mode of operation. The X-ray image acquisition unit is configured to operate in a plurality of diagnostic image acquisition modes of operation. The X-ray image acquisition unit is configured to operate in a specific scout scan mode of operation of the at least one scout scan mode of operation to acquire a scanogram of a body part of a patient. The X-ray image acquisition unit is configured to provide the scanogram to the processing unit. The processing unit is configured to execute a trained machine learning algorithm to analyse the scanogram to select a specific diagnostic image acquisition mode of operation of the plurality of diagnostic image acquisition modes of operation, wherein the selection comprises a determination of one or more probabilities for one or more diseases or conditions associated with the body part f the patient. The X-ray image acquisition unit is configured to operate in the specific diagnostic image acquisition mode of operation o acquire diagnostic image data of the body part of the patient.