James G Colsher from 2 Scotland Pl, Durham, NC 27705, age 78, Phone: 9194035813

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Position:

Adjunct Assistant Professor at Duke University Medical Center

Location:

Raleigh-Durham, North Carolina Area

Industry:

Research

Work:

Duke University Medical Center
Adjunct Assistant Professor

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Location:

Raleigh-Durham, North Carolina Area

Industry:

Medical Devices

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Pet Scanner Septa
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US Patent:

6373059, Apr 16, 2002
Filed:

Oct 31, 2000
Appl. No.:

09/702334
Inventors:

Charles W. Stearns - New Berlin WI
James G. Colsher - Waukesha WI
Assignee:

GE Medical Systems Global Technology Company, LLC - Waukesha WI
International Classification:

G01T 120
US Classification:

25036303, 25036304, 25036309
Abstract:

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.

Methods And Apparatus For New Useful Metrics
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US Patent:

7907757, Mar 15, 2011
Filed:

Nov 24, 2006
Appl. No.:

11/563121
Inventors:

Thomas Louis Toth - Brookfield WI, US
Bernice Eland Hoppel - Delafield WI, US
Rendon Clive Nelson - Chapel Hill NC, US
James George Colsher - Durham NC, US
Timothy Garvey Turkington - Durham NC, US
Lisa Mei-ling Ho - Durham NC, US
Assignee:

General Electric Company - Schenectady NY
Duke University - Durham NC
International Classification:

G06K 9/00
A61B 6/00
G01N 23/00
G21K 1/12
H05G 1/60
US Classification:

382128, 382131, 378 4, 378 21, 378 54
Abstract:

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.

Method And Apparatus For Correcting Multi-Modality Imaging Data
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US Patent:

8553959, Oct 8, 2013
Filed:

Mar 21, 2008
Appl. No.:

12/053370
Inventors:

Jiang Hsieh - Brookfield WI, US
James George Colsher - Durham NC, US
Albert Henry Lonn - Beaconsfield, GB
Alexander Ganin - Whitefish Bay WI, US
Jean-Baptiste Thibault - Milwaukee WI, US
Assignee:

General Electric Company - Schenectady NY
International Classification:

G06K 9/00
US Classification:

382131
Abstract:

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.

Spect System With Reduced Radius Detectors
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US Patent:

61947253, Feb 27, 2001
Filed:

Jul 31, 1998
Appl. No.:

9/126824
Inventors:

James G. Colsher - Waukesha WI
Albert H. R. Lonn - Beaconsfield Bucks, GB
Carl M. Bosch - Wauwatosa WI
Assignee:

General Electric Company - Waukesha WI
International Classification:

G01T 1166
US Classification:

25036305
Abstract:

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.

Method For Calculating Blood Flow Using Freely Diffusible Inert Gases And Ct
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US Patent:

46102582, Sep 9, 1986
Filed:

Nov 13, 1984
Appl. No.:

6/670594
Inventors:

James G. Colsher - Waukesha WI
Assignee:

General Electric Company - Milwaukee WI
International Classification:

A61B 502
US Classification:

128691
Abstract:

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.

Gamma Ray Detector For Pet Scanner
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US Patent:

53007824, Apr 5, 1994
Filed:

Jun 26, 1992
Appl. No.:

7/904791
Inventors:

Brian D. Johnston - Hartland WI
David L. McDaniel - Dousman WI
James G. Colsher - Waukesha WI
Assignee:

General Electric Company - Milwaukee WI
International Classification:

G01T 120
G01T 1202
US Classification:

25036303
Abstract:

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.