1
Richard C Lanza, Roberto Accorsi, Francesca Gasparini: Coded aperture imaging. Massachusetts Institute of Technology, Hamilton Brook Smith & Reynolds P C, May 18, 2004: US06737652 (97 worldwide citation)

Improved systems and methods for coded aperture imaging of radiation-emitting sources. According to one aspect, the present invention is directed to reducing and/or eliminating the artifacts that are inherent in previous near field coded aperture imaging systems such that the improved sensitivity an ...


2
Hugo Bertelsen, Horace H Hines, Matthew J Murphy, Peter Nellemann, Donald R Wellnitz: Multi-head nuclear medicine camera for dual SPECT and PET imaging. ADAC Laboratories, Blakely Sokoloff Taylor and Zafman, December 17, 1996: US05585637 (61 worldwide citation)

A multi-detector head nuclear camera system automatically switchable (and optimized) to perform either SPECT imaging or PET imaging. The camera system employs, in one embodiment, multi-detector configuration having dual head scintillation detectors but can be implemented with more than two detector ...


3
Naor Wainer, Gideon Berlad, Yaron Hefetz, Dov Maor, Israel Ohana, Natan Hermony: Gamma ray collimator. Elgems, Paul Fenster, Christian Cabou, August 7, 2001: US06271524 (60 worldwide citation)

A gamma ray collimator assembly comprising a first portion and a second collimator portion, the first and second portions having different gamma ray acceptance angles.


4
Iain Stark, Abel Ferreira: Scintillation data collecting apparatus and method. Independent Scintillation Imaging Systems, Foley & Lardner, May 3, 1994: US05309357 (60 worldwide citation)

A scintillation data collecting apparatus and method are provided for a scintillation camera and a data processor. The apparatus comprises a scintillation detector including an adder and an analyzer for detecting the valid scintillations, a plurality of conversion units each including an analog-to-d ...


5
Wai Hoi Wong, Jorge Uribe: Tomographic pet camera with adjustable diameter detector ring. Board of Regents The University of Texas System, Arnold White & Durkee, October 20, 1998: US05825031 (58 worldwide citation)

A PET camera is disclosed with radially translating detector segments coupled with a rotational motion to tailor the camera detector ring to the size of the subject for optimal detection efficiency. In particular methods of using the present invention, the detector segments may be radially translate ...


6
Bo Pi, Timothy C Collins, Richard L Conwell: Semiconductor radiation detector with downconversion element. Digirad Corporation, Fish & Richardson PC, February 27, 2001: US06194726 (55 worldwide citation)

A radiation detection device for gamma radiation is disclosed having an array of crystals optically positioned adjacent an optional collimator, the crystals emitting visible light upon illumination by the incident gamma radiation. An array of photodetectors is optically positioned adjacent the cryst ...


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Bernd Bassalleck, Michael F Hartshorne, Charles A Kelsey, Frederick A Mettler, David M Wolfe: Digital gamma ray imaging device. July 21, 1992: US05132542 (43 worldwide citation)

The arrangement imaging a body through gamma radiation comprising the steps of detecting, within each fixed time period of a succession of fixed time periods at a plurality of locations impinged by the gamma radiation, electric charge levels corresponding to photoelectric events; counting within eac ...


9
Robert Z Stodilka, Frank S Prato, Brad J Kemp, Richard L Nicholson: Application of scatter and attenuation correction to emission tomography images using inferred anatomy from atlas. Baker & Daniels, May 25, 2004: US06740883 (41 worldwide citation)

A method of applying scatter and attenuation correction to emission tomography images of a region of interest of a patient under observation comprises the steps of aligning a three-dimensional computer model representing the density distribution within the region of interest with the emission tomogr ...


10
Grant T Gullberg, Gengsheng Lawrence Zeng, Roman Basko: Image reconstruction from V-projections acquired by Compton camera. The University of Utah, Fay Sharpe Beall Fagan Minnich & McKee, November 24, 1998: US05841141 (40 worldwide citation)

A SPECT system includes a Compton camera (14) disposed on a gantry (16). The camera (14) includes linear detectors (30a, 30b) operating without mechanical collimation for detecting radiation emanating from a subject to be imaged. A data processor (22) collects and processes radiation data in accorda ...