General Electric Company

Duke University

Ge Medical Systems Global Technology Company, LLC

James G Colsher

Jiang Hsieh

Thomas L Toth

David Leo McDaniel

Jean-Baptiste Thibault

Charles William Stearns

Alexander Ganin

Bernice Hoppel

Albert Henry Lonn

Brian D Johnston

Rendon Clive Nelson

Timothy Garvey Turkington

Albert H R Lonn

Lisa Mei-ling Ho

Carl M Bosch

A method for correcting Positron Emission Tomography (PET) data includes adjusting a tube current generated by the CT imaging system to a second tube current value that is less than a first tube current value used to generate diagnostic quality CT images, and imaging the patient with the CT imaging system set at the second tube current value. The method also includes generating a plurality of computed tomography (CT) projection data from the CT imaging system and preprocessing the CT projection data to generate preprocessed CT projection data. The method further includes filtering the preprocessed CT projection data to reduce electronic noise to generate filtered CT projection data, and performing a minus logarithmic operation on the filtered CT projection data to generate the corrected PET data.

Method and apparatus for correcting multi-modality imaging data

A computer readable medium is embedded with a program configured to receive or generate a PAI, and/or use the PAI in a diagnostic application.

Methods and apparatus for new useful metrics

A PET scanner is disclosed which includes a gantry, a plurality of sets of detectors supported by the gantry, and a plurality of septa that are supported by the gantry and are constructed of material which blocks photons. The detectors in each set are disposed in a plane and positioned around a central axis that intersects the plane, and the plurality of sets of detectors are spaced along the central axis. The septa are spaced along the central axis to separate groups of two or more detector sets and block external photons from reaching the detectors. The PET scanner further includes a processor means for receiving signals produced by the detectors and indicating annihilation events occurring within a central region around the central axis, and for reconstructing an image from indicated annihilation events.

PET scanner septa

An imaging system for generating SPECT images wherein first and second cameras are mounted to a gantry for rotation about an imaging axis, the cameras are positionible in an L configuration wherein their camera axis intersect at an intersection point, the cameras are mounted such that when in the L position the intersection point is further away from each of the cameras than is the rotation axis allowing the cameras to be moved radially inward with respect to the rotation axis thus reducing the degree of table movement within the imaging area required to position an object to be imaged adjacent the cameras.

Spect system with reduced radius detectors

A PET scanner includes a ring of detector units which receive gamma rays produced by annihilation events. Each detector unit includes a 6.times.6 array of BGO scintillation crystals mounted in front of a 2.times.2 array of photomultiplier tubes. The position of a scintillation event within the crystal array is determined more accurately by selectively painting the side surfaces of the array crystals.

Gamma ray detector for pet scanner

A simplified method of determining tissue blood flow such as cerebral blood flow is provided by calculating the partial derivatives with respect to flow rate constant (k) and partition coefficient (.lambda.) of the sum of errors squared for calculated tissue concentration of a diffusible inert gas such as xenon minus measured tissue concentration of xenon based on CT numbers.

Method for calculating blood flow using freely diffusible inert gases

Growing community of inventors

Waukesha, WI, United States of America

James G Colsher