Abstract: Methods and systems for controlling movement of detectors having multiple detector heads are provided. One system includes a gantry, a patient support structure supporting a patient table thereon, and a plurality of detector units. At least some of the detector units are rotatable to position the detector units at different angles relative to the patient table. The imaging system further includes a detector position controller configured to control the position of the rotatable detector units, wherein at least some of the rotatable detector units positioned adjacent to each other have an angle of rotation to allow movement of the rotatable detector units a distance greater than a gap between adjacent rotatable detector units. The detector position controller is configured to calculate at least one of field of view avoidance information or collision avoidance information to determine an amount of movement for one or more of the rotatable detector units.

Abstract: Some of the embodiments of the present disclosure provide an apparatus for sensing a voltage level of an output voltage that is selected from at least two voltage supplies, including: a maximum voltage generator circuit configured (i) to determine a voltage supply among the at least two voltage supplies that has a higher voltage level and (ii) to output a maximum voltage signal having a voltage level corresponding to the higher voltage level; and a sensing module configured to selectively sense the output voltages, the sensing module comprising a switch circuit configured to apply the maximum voltage signal to completely turn off supply of the output voltage when the output voltage is not to be sensed at the sensing module.

Abstract: A method is provided including identifying a target portion of a patient corresponding to a portion of interest of the patient to be scanned with a nuclear medicine scanning technique. The method also includes applying an uptake increasing technique to at least one of the target portion or an application portion of the patient other than the target portion. The uptake increasing technique is configured to increase uptake of a radiopharmaceutical to the target portion of the patient relative to portions of the patient other than the target portion. Also, the method includes administering the radiopharmaceutical to the patient temporally proximate to the applying an uptake increasing technique.

Abstract: Methods and systems for controlling movement of detectors having multiple detector heads are provided. One system includes a gantry, a patient support structure supporting a patient table thereon, and a plurality of detector units. At least some of the detector units are rotatable to position the detector units at different angles relative to the patient table. The imaging system further includes a detector position controller configured to control the position of the rotatable detector units, wherein at least some of the rotatable detector units positioned adjacent to each other have an angle of rotation to allow movement of the rotatable detector units a distance greater than a gap between adjacent rotatable detector units The detector position controller is configured to calculate at least one of field of view avoidance information or collision avoidance information to determine an amount of movement for one or more of the rotatable detector units.

Abstract: Methods and systems for controlling movement of detectors having multiple detector heads are provided. One system includes a gantry, a patient support structure supporting a patient table thereon, and a plurality of detector units. At least some of the detector units are rotatable to position the detector units at different angles relative to the patient table. The imaging system further includes a detector position controller configured to control the position of the rotatable detector units, wherein at least some of the rotatable detector units positioned adjacent to each other have an angle of rotation to allow movement of the rotatable detector units a distance greater than a gap between adjacent rotatable detector units The detector position controller is configured to calculate at least one of field of view avoidance information or collision avoidance information to determine an amount of movement for one or more of the rotatable detector units.

Abstract: Methods and systems for controlling movement of detectors having multiple detector heads are provided. One system includes a gantry, a patient support structure supporting a patient table thereon, and a plurality of detector units. At least some of the detector units are rotatable to position the detector units at different angles relative to the patient table. The imaging system further includes a detector position controller configured to control the position of the rotatable detector units, wherein at least some of the rotatable detector units positioned adjacent to each other have an angle of rotation to allow movement of the rotatable detector units a distance greater than a gap between adjacent rotatable detector units The detector position controller is configured to calculate at least one of field of view avoidance information or collision avoidance information to determine an amount of movement for one or more of the rotatable detector units.

Abstract: A method is provided including identifying a target portion of a patient corresponding to a portion of interest of the patient to be scanned with a nuclear medicine scanning technique. The method also includes applying an uptake increasing technique to at least one of the target portion or an application portion of the patient other than the target portion. The uptake increasing technique is configured to increase uptake of a radiopharmaceutical to the target portion of the patient relative to portions of the patient other than the target portion. Also, the method includes administering the radiopharmaceutical to the patient temporally proximate to the applying an uptake increasing technique.

Abstract: A SPECT detector system includes a plurality of detector units. Each detector unit includes a plurality of detector elements disposed in fixed positions with respect to one another. The detector units are adjustably positioned with respect to one another around a detector arc, which is placed adjacent to a patient.

Abstract: Systems and methods for nuclear medicine (NM) imaging using different radiopharmaceuticals are provided. One method includes generating images of a region of interest (ROI) from radioactive emissions from a localization radiopharmaceutical to position the ROI in a field-of-view (FOV) of a gamma camera based on the generated images of the ROI. The method further includes performing an imaging scan of the ROI using an imaging radiopharmaceutical to acquire image data of the ROI, wherein the imaging radiopharmaceutical is different than the localization radiopharmaceutical.

Abstract: Methods and systems for calibrating a nuclear medicine imaging system are provided. One method includes acquiring spatially determined non-uniform radiation flux information from a calibration scan of a calibration source using a gamma camera having an attached non-parallel-hole collimator. The method further includes determining a measured non-uniform count density profile from the acquired non-uniform radiation flux information. The method also includes creating a gamma camera uniformity correction map derived from (i) the measured non-uniform count density profile and (ii) a modeled or calculated non-uniform count density profile for calibrating the NM imaging system.

Abstract: A SPECT detector system includes a plurality of detector units. Each detector unit includes a plurality of detector elements disposed in fixed positions with respect to one another. The detector units are adjustably positioned with respect to one another around a detector arc, which is placed adjacent to a patient.

Abstract: Methods and systems for calibrating a nuclear medicine imaging are provided. One method includes acquiring spatially determined non-uniform radiation flux information from a calibration scan of a calibration source using a gamma camera having an attached non-parallel-hole collimator. The method further includes determining a measured non-uniform count density profile from the acquired non-uniform radiation flux information. The method also includes creating a gamma camera uniformity correction map derived from (i) the measured non-uniform count density profile and (ii) a modeled or calculated non-uniform count density profile for calibrating the NM imaging system.

Abstract: Systems and methods for nuclear medicine (NM) imaging using different radiopharmaceuticals are provided. One method includes generating images of a region of interest (ROI) from radioactive emissions from a localization radiopharmaceutical to position the ROI in a field-of-view (FOV) of a gamma camera based on the generated images of the ROI. The method further includes performing an imaging scan of the ROI using an imaging radiopharmaceutical to acquire image data of the ROI, wherein the imaging radiopharmaceutical is different than the localization radiopharmaceutical.

Abstract: An apparatus and methods for calibrating pixelated detectors are provided. A method includes acquiring energy response data for a plurality of pixels of the pixelated semiconductor radiation detector and performing at least one of energy calibration and sensitivity calibration on each of the plurality of pixels based on the acquired energy response data.

Abstract: An apparatus and methods for calibrating pixelated detectors are provided. A method includes acquiring energy response data for a plurality of pixels of the pixelated semiconductor radiation detector and performing at least one of energy calibration and sensitivity calibration on each of the plurality of pixels based on the acquired energy response data.

Abstract: A hand gamma camera system for generating an image of a gamma radiation source, the camera including a housing designed to be hand held, a gamma radiation image detector mounted on or in the housing that generates detection data responsive to radiation data from a gamma source incident on the radiation detector, a controller connected to the radiation detector that receives the detection data and generates image data and a display mounted on or in the housing that receives the image data from the controller and generates an image.

Abstract: A hand gamma camera system for generating an image of a gamma radiation source, the camera comprising a housing designed to be hand held, a gamma radiation image detector mounted on or in the housing that generates detection data responsive to radiation data from a gamma source incident on the radiation detector, a controller connected to the radiation detector that receives the detection data and generates image data and a display mounted on or in the housing that receives the image data from the controller and generates an image.

Abstract: A hand gamma camera system for generating an image of a gamma radiation source, said camera comprising a housing designed to be hand held, a gamma radiation image detector mounted on or in said housing that generates detection data responsive to radiation data from a gamma source incident on said radiation detector, a controller connected to said radiation detector that receives said detection data and generates image data and a display mounted on or in said housing that receives said image data from said controller and generates an image.

Abstract: A hand, gamma camera system for generating an image of a gamma radiation source, said camera comprising a housing designed to be hand held, a gamma radiation image detector mounted on or in said housing that generates detection data responsive to radiation data from a gamma source incident on said radiation detector, a controller connected to said radiation detector that receives said detection data and generates image data and a display mounted on or in said housing that receives said image data from said controller and generates an image.

Abstract: A method and a device for performing stack operations within a processing system. A first and second stack pointers point to a top of a stack and to a memory location following the top of the stack. A first stack pointer is used during pop operations and a second stack pointer is used during push operations. When a stack pointer is selected, it replaces the other stack pointer. The selected memory pointer is provided to a memory module in which a stack is implemented, and is also updated. When a pop operation is executed the updated stack pointer points to a memory location preceding a memory location pointed by the selected stack pointer and when a push operation is executed the updated stack pointer points to a memory address following that address.