General Electric Company

Peter S Crandall

Andrew C Johnson

Jiang Hsieh

Jiahua Fan

Abdelaziz Ikhlef

Chad Allan Smith

Naveen Stephan Chandra

Baojun Li

Paavana Sainath

Fang Frank Dong

Ron Kent Hockersmith

Floribertus Philippus Heukensfeldt Jansen

Christopher F Johnson

Mary Sue Kulpins

Michael R Koger

Kevin R Anderson

Roman I Dachniwskyj

Daniel Robert Taylor

Almos A Elekes

Benjamin Perelman

Liyong Wu

A patient transfer board including an elongated board body that extends lengthwise along a longitudinal axis between leading and trailing ends of the board body. The transfer board has a top side and an underside of the board body. The underside includes first and second side edges that extend along the longitudinal axis. The underside includes alignment slots having respective openings at the first side edge. The alignment slots are defined by interior sidewalls. The alignment slots are configured to receive reference elements of the patient table through the respective openings when the transfer board is moved in a lateral direction that is generally transverse to the longitudinal axis. The sidewalls are configured to engage the corresponding reference elements and direct the transfer board toward a designated position.

Patient transfer board, transfer assembly, and a method of manufacturing a transfer board

A CT system includes a generator configured to energize an x-ray source to a first kilovoltage (kVp) and to a second kVp, and a computer that is programmed to acquire a first view dataset with the x-ray source energized to the first kVp and a second view dataset with the x-ray source energized to the second kVp, generate a base correction image using the first view dataset and the second view dataset, and reconstruct a pair of base material images from the first view dataset and from the second view dataset. The computer is also programmed to estimate artifact correlation in the pair of base material images using the base correction image, generate a pair of final base material images and a final monochromatic image, and correct one of the pair of final base material images and the final monochromatic image at a keV value using the estimated artifact correlation.

System and method of image artifact reduction in fast kVp switching CT

An imaging system includes a rotatable gantry having an opening therein to receive a subject to be scanned and configured to rotate about a central axis in a rotation direction. The imaging system also includes a first x-ray source coupled to the rotatable gantry at a first position, wherein the first position is offset from the central axis of the rotatable gantry by a first distance. Further, the imaging system includes a second x-ray source coupled to the rotatable gantry at a second position, wherein the second position is offset from the central axis of the rotatable gantry by a second distance, wherein the second position is offset from the first position in a direction coincident with the rotation direction, and wherein the second position is offset from the first position in a direction parallel to the central axis.

Multiple X-ray tube system and method of making same

A reduced field of view collimator for a nuclear imaging gamma camera is described. In one form, the collimator includes a gamma ray attenuating plate, several core plates, and a ramp member. The gamma ray attenuating plate is sized to substantially cover a scintillation crystal face, and includes an opening. The core plates extend from the attenuating plate at a periphery of the plate opening and define an outer periphery of a collimator core. The ramp member includes a ramp having a sloped surface, and is formed of gamma ray attenuating material. The ramp member is secured adjacent to at least one of the core plates so that the sloped surface extends substantially angularly with respect to the attenuating plate and the core plate.

Gamma camera collimator

A method for forward projecting data from an image volume to a projection plane is described. In one embodiment, the method includes the steps of rotating the image data by a transaxial angle .phi. to align the image data with the projection plane. Then, for every axial angle .crclbar., and for each y'.sub.0 and for each value v in the projection plane:

Forward projection algorithm

Growing community of inventors

Oconomowoc, WI, United States of America

Peter S Crandall