Abstract: Two different collimation geometries are interleaved. Each collimation geometry samples a transaxial slice through the object being imaged. The even slices are of the same fan-beam geometry as the central head, but the odd slices are of different collimation geometry. Each slice covers an axial range that is the same as the pixel size of the solid-state detector, and aligns with the corresponding pixels in the axial direction.

Abstract: First and second gamma radiation detector heads are oriented to image an area of a subject. The area of said subject is completely within a field of view that is defined between the first and second gamma radiation heads. Focal points of each of the first and second gamma radiation heads are also within an area defined between the first and second gamma radiation heads.

Abstract: Magnetic attachment for a multisided buttable module.

Abstract: An indirect connection to and across a photodiode array. The backside contact is used as one portion which connects to a capacitor. The capacitor forms a shunt across the bulk substrate, thus shunting across the series resistance of the substrate, and reducing the series resistance.

Abstract: Two different collimation geometries are interleaved. Each collimation geometry samples a transaxial slice through the object being imaged. The even slices are of the same fan-beam geometry as the central head, but the odd slices are of different collimation geometry. Each slice covers an axial range that is the same as the pixel size of the solid-state detector, and aligns with the corresponding pixels in the axial direction.

Abstract: A SPECT system which scans over multiple separate scans and individually motion compensates the information obtained from each of these scans. The separate scans may be over different angular extents and may be for different purposes. One of the scans for example may be a scout scan, and the other scans may then be scans which concentrate on areas identified during the scout scan. Alternatively, the scans may all being exactly the same and stitched together after the individual motion compensation. Since each of the scans are shorter, the patient will presumably have moved less during each individual scan, and the amount of motion is hence presumably less.

Abstract: A combined cold plate for RF shield is optimized both for cooling a device and also for shielding it against RF. One embodiment uses a two-part material so that it has improved thermal characteristics from one part and RF shielding characteristics from another part.

Abstract: A SPECT system which scans over multiple separate scans and individually motion compensates the information obtained from each of these scans. The separate scans may be over different angular extents and may be for different purposes. One of the scans for example may be a scout scan, and the other scans may then be scans which concentrate on areas identified during the scout scan. Alternatively, the scans may all being exactly the same and stitched together after the individual motion compensation. Since each of the scans are shorter, the patient will presumably have moved less during each individual scan, and the amount of motion is hence presumably less.

Abstract: A large field of view projection image is obtained and a small field of view projection image is obtained. The two images are normalized, to take into account the difference between the count data between the images, and the way the images represent data. The large field of view image does not include truncation errors that are present in the small field of view image and therefore is stitched together with the smaller field of view image to use the improved data within the small field of view image with the truncation reduction enabled by the larger field of view image.

Abstract: A medical imaging system, e.g., a computed tomography system includes at least one radiation detector that is relatively rotatable with respect to an object of interest. The angular range is divided into discrete continuous acquisition ranges and unsampled angular ranges, wherein the discrete continuous acquisition ranges are separated by unsampled angular ranges.

Abstract: An indirect connection to and across a photodiode array. The backside contact is used as one portion which connects to a capacitor. The capacitor forms a shunt across the bulk substrate, thus shunting across the series resistance of the substrate, and reducing the series resistance.

Abstract: A detector head having a small field of view, for example one which receives information from less than half a body imaged, is used to form a transmission attenuation map. The same detector head both receives information for the transmission attenuation map and also receives imaging information e.g. from a radioisotope.

Abstract: An indirect connection to and across a photodiode array. The backside contact is used as one portion which connects to a capacitor. The capacitor forms a shunt across the bulk substrate, thus shunting across the series resistance of the substrate, and reducing the series resistance.

Abstract: A detector head having a small field of view, for example one which receives information from less than half a body imaged, is used to form a transmission attenuation map. The same detector head both receives information for the transmission attenuation map and also receives imaging information e.g. from a radioisotope.

Abstract: A multiaxis gantry camera has additional axes of movement that allow unexpected functions. A first function allowed the collimator is to be exchanged while maintaining them in a configuration that saves space. The device can also be used to calibrate in a space-saving configuration. Different turning configurations can be allowed to change the orientation over which scanning is conducted.

Abstract: Ultra-low leakage current backside-illuminated semiconductor photodiode arrays are fabricated using a method of formation of a transparent, conducting bias electrode layer that avoids high-temperature processing of the substrate after the wafer has been gettered. As a consequence, the component of the reverse-bias leakage current associated with strain, crystallographic defects or impurities introduced during elevated temperature processing subsequent to gettering can be kept extremely low. An optically transparent, conductive bias electrode layer, serving as both an optical window and an ohmic backside equipotential contact surface for the photodiodes, is fabricated by etching through the polysilicon gettering layer and a portion of the thickness of heavily-doped crystalline silicon layer formed within, and near the back of, the substrate during the gettering process.

Abstract: A SPECT system which scans over multiple separate scans and individually motion compensates the information obtained from each of these scans. The separate scans may be over different angular extents and may be for different purposes. One of the scans for example may be a scout scan, and the other scans may then be scans which concentrate on areas identified during the scout scan. Alternatively, the scans may all being exactly the same and stitched together after the individual motion compensation. Since each of the scans are shorter, the patient will presumably have moved less during each individual scan, and the amount of motion is hence presumably less.

Abstract: A large field of view projection image is obtained and a small field of view projection image is obtained. The two images are normalized, to take into account the difference between the count data between the images, and the way the images represent data. The large field of view image does not include truncation errors that are present in the small field of view image and therefore is stitched together with the smaller field of view image to use the improved data within the small field of view image with the truncation reduction enabled by the larger field of view image.

Abstract: A multiheaded camera which is formed with a number of heads on one support structure and a different support structure with other heads. At least one of the heads is movable, so that the patient can obtain ingress and egress to the area.

Abstract: A patient movement system is used to detect movement of the patient in multiple of different coordinates. The movement of the patient is obtained in real-time and correlated to times of medical images, and used to compensate those medical images for the actual patient movement. This can be used in place of post processing algorithms which do not have actual medical information.