A multiple frame x-ray imaging system is disclosed with capability of differential x-ray exposure of different input areas of an image intensifier or other x-ray detector. Collimators are provided to control the amount of radiation in various regions of the image and image processing is provided to provide the display of images of different qualities.

A sliding cross-fluoroscopy auxiliary apparatus includes: a holder (1) and a lifting pillar (2) on the holder (1), wherein a supporting arm (3) is provided on a top end of the lifting pillar (2), and a telescopic shaft (4) is arranged inside the supporting arm (3); a first end of the telescopic shaft (4) is connected to a first driver (5), and a second end of the telescopic shaft (4) is connected to an A arc (6); the first driver (5) drives the telescopic shaft (4) to extend out, draw back or rotate; a second driver (7) is arranged at a joint between the A arc (6) and the telescopic shaft (4), and a B arc (8) is placed between the second device (7) and the A arc (6); the second driver (7) drives the B arc (8) to rotate along the A arc (6).

A control unit 30 includes: an image storage unit 31 constituted by a first image storage unit 32 that stores multiple templates created on the basis of an image including a specific site of a subject and a second image storage unit 33 that stores multiple positive images created on the basis of an image including the specific site of the subject; a learning unit 34 that, on the basis of the multiple positive images, creates a discriminator by machine learning; a position selection unit 35 that, with use of multiple images obtained by collecting an image including the specific site of the subject at a predetermined frame rate, selects a region including the specific site by machine learning using the discriminator; and a position detection unit 36 that detects the position of the specific site by performing template matching using the multiple templates on the region including the specific site selected by the position selection unit 35.

A transmitting element for generating a magnetic field for tracking of an object includes a first spiral trace that extends from a first outer origin inward to a central origin in a first direction. A second spiral trace can extend from the central origin outward to a second outer origin in the first direction. The second spiral trace can extend from the central origin to the second outer origin in the first direction. The first spiral trace and the second spiral trace can be physically connected at the central origin to form the fluorolucent magnetic transmitting element and at least a portion of the first spiral trace overlaps at least a portion of the second spiral trace.

The present invention relates to X-ray imaging. In order to reduce X-ray dose exposure during X-ray image acquisition, an X-ray detector is provided that is suitable for phase contrast and/or dark-field imaging. The X-ray detector comprises a scintillator layer (12) and a photodiode layer (14). The scintillator layer is configured to convert incident X-ray radiation (16) modulated by a phase grating structure (18) into light to be detected by the photodiode layer. The scintillator layer comprises an array of scintillator channels (20) periodically arranged with a pitch (22) forming an analyzer grating structure. The scintillator layer and the photodiode layer form a first detector layer (24) comprising a matrix of pixels (26). Each pixel comprises an array of photodiodes (28), each photodiode forming a sub-pixel (30). Adjacent sub-pixels during operation receive signals having mutually shifted phases. The sub-pixels that during operation receive signals having mutually identical phase form a phase group per pixel. The signals received by the sub-pixels within the same phase group per pixel during operation are combined to provide one phase group signal (32). The phase group signals of different phase groups during operation are obtained in one image acquisition. In an example, the pitch of the scintillator channels is detuned by applying a correcting factor c to a fringe period (P.sub.fringe) of a periodic interference pattern (35) created by the phase grating structure, wherein 0<c<2.

Radiation treatment is delivered to a patient by positioning the patient such that a radiation beam is delivered to a lesion within the patient along a beam-delivery path while securing a diagnostic imaging device about the patient such that the diagnostic imaging device does not intersect the beam-delivery path. Radiation therapy is simultaneously delivered along the beam-delivery path while diagnostic images are obtained using the imaging device.

According to one embodiment, a medical information processing apparatus includes processing circuitry. The processing circuitry is configured to receive data acquired by scan for an object, and output a reconstructed image data based on the data and a trained model that accepts the data as input data and outputs the reconstructed image data corresponding to the data. The trained model is trained by learning using raw data generated based on a numerical phantom and the numerical phantom.

A multiple frame x-ray imaging system is disclosed with capability of differential x-ray exposure of different input areas of an image intensifier or other x-ray detector. Collimators are provided to control the amount of radiation in various regions of the image and image processing is provided to provide the display of images of different qualities.

A radiation fluoroscopy apparatus detects a marker and includes a control element, an image generation element 61 that generates an image including an embedded marker inside the body of the subject based on a transmitted X-ray. A device candidate detection element 62 detects the candidate of the marker, the local structure detection element 63 detects the local structure in the target region in a proximity of the candidate point of the marker, the device determination element 64 determines whether the local structure is the device such as the marker or not, the device location acquisition element 66 acquires the gravity center coordinate of the local structure, and the device tracking element 67 tracks the marker based on the location of the marker in each frame.

A nuclear medicine tomography system including: a detector carrier; a detector carrier housing including an inner space; a plurality of detector units, coupled to the detector carrier, each detector unit comprising: a detector camera; a cooling channel which guides air to the detector camera from the inner space; an exhaust channel which guides air from the detector camera to the inner space; a heat pump configured to cool air within the inner space.