Abstract: Methods and systems for imaging a patient using an imaging system is provided. The method includes rotating a detector about a patient, detecting a predetermined distance of the detector from the patient, and automatically moving the detector to within a predetermined range of distance from the patient based on the detected distance.

Abstract: A method and apparatus for reducing polarization within an imaging device are provided and include a method of controlling an image detecting device. The method includes applying heat to the image detecting device having at least one ohmic contact and controlling the applied heat to adjust a temperature level of the image detecting device.

Abstract: A method of detecting ionizing radiation is provided.

Abstract: A method for multi-modality imaging is provided. The method includes receiving a first signal from a detector operating in a first imaging modality, and receiving a second signal from the detector operating in a second imaging modality, wherein the first and second signals are received sequentially.

Abstract: A gamma camera system comprising: a pair of gamma camera heads; and a stand on which the gamma camera heads are mounted, wherein the camera system is configurable in one of at least two configurations, including: an operational condition in which faces of the gamma camera heads form an angle of between 80 and 100 degrees; and a non-operational parking configuration in which a front face of the gamma camera heads form an angle substantially greater than 100 degrees.

Abstract: A method of registering a plurality of functional images includes providing a plurality of functional images, providing a plurality of structural images, each one of which having a known positional relationship to at least one of said plurality of functional images, and finding a first mapping transformation between pairs of functional images based on the first mapping transformation and the positional transformation.

Abstract: A method of registering a plurality of functional images includes providing a plurality of functional images, providing a plurality of structural images, each one of which having a known positional relationship to at least one of said plurality of functional images, and finding a first mapping transformation between pairs of functional images based on the first mapping transformation and the positional transformation.

Abstract: A method of reconstructing tomography images comprising: acquiring data on individual radiation events; distributing a weight of the individual radiation events along a line of flight associated with the event determined from the acquired data; and iteratively reconstructing the image based on the individually reprojected data.

Abstract: A system and method of mapping irregularities of hard tissue. The method includes repeatedly transmitting ultra-sonic energy towards the hard tissue at a first angle of incidence, registering the origin of transmission if an echo-reflection the hard tissue is received, defining the origin of transmission in six degrees of freedom, calculating position co-ordinates for a point causing the echo-reflection and changing the origin of transmission. The method further includes compiling position co-ordinates to generate a map of the irregularities in the surface of the hard tissue. The system includes at least one ultrasonic transducer, a central processing unit and a position locator and adjustment mechanism operably connectable and configured to accomplish the disclosed method.

Abstract: A method of registering a plurality of functional images includes providing a plurality of functional images, providing a plurality of structural images, each one of which having a known positional relationship to at least one of said plurality of functional images, and finding a first mapping transformation between pairs of functional images based on the first mapping transformation and the positional transformation.

Abstract: A method of correcting errors in imaging data in a Gamma Camera including determining a first correction map based on one or both of (1) calculated corrections and (2) a first data acquisition, determining a second correction map based on a second data acquisition and correcting the imaging data based on the first and second correction maps. In a preferred embodiment of the invention, error correction is implemented using a neural network. Alternatively, a neural network can be used to perform the entire calculation of event position and/or energy.

Abstract: A gamma camera for imaging radiation emitted from or transmitted by an object including a gamma camera head having a front input surface which produces signals, when a photon associated with the radiation is detected by the head, indicative of the position of the position of the detection on the input surface and at a given resolution in the absence of dithering of the head; and a dithering system which differentially translates the detector head or the object in at least one direction parallel to the input surface so that the dithering system translates the detector head or the object by an amount at least equal to the given resolution but less than 50 times the given resolution during acquisition of the signals.

Abstract: A gamma camera (70), comprising: at least one emission detector (72), which receives radiation emitted from the body of a subject (26) and generates signals responsive thereto; a radiation source (74), which directs radiation toward the body; at least one transmission detector (76), having a long dimension, which receives radiation transmitted through the body (26) from the radiation source (74) and generates signals responsive thereto, wherein the transmission detector (76) translates in a direction generally perpendicular to the long dimension.

Abstract: A method of reducing artifacts caused by generation of unwanted photons by scattering (e.g., Compton scattered photons) in which a detected event is spatially convoluted with a spatial filter function. The filter function has a distribution of weights within the filter function that is dependent on the energy of the event for a same primary event energy.

Abstract: A gamma camera head including: a plurality of signal sources, each associated with a pixel position, the source producing a signal when a gamma ray absorption event occurs at or sufficiently close to its associated pixel, wherein the plurality of signal sources is associated with a contiguous extent of pixels; and a plurality of electronic circuits, each of which receives signals from at least two of the plurality of signal sources, wherein each circuit receives the signals only from sources associated with non-contiguous pixels.

Abstract: A gamma camera arrangement and method for imaging a patient without moving the patient from the regular hospital bed to a patient carrier bed.