X-ray or gamma ray systems or devices – Specific application – Computerized tomography
Reexamination Certificate
2011-04-26
2011-04-26
Glick, Edward J (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Computerized tomography
C378S004000, C378S015000
Reexamination Certificate
active
07933377
ABSTRACT:
A CT system includes a scintillator array having a first length in an axial direction of the CT system, the scintillator array includes a plurality of scintillator cells along the first length. The CT system includes a controller configured to repeatedly position a subject fore and aft along the axial direction and over a second length of the CT system, the second length greater than the first length, energize an x-ray source to emit x-rays toward the subject while the subject is being repeatedly positioned, and obtain non-uniform projection data of the subject from the scintillator array, the non-uniform projection data comprising the x-rays received from the x-ray source while the subject is repeatedly positioned. The CT system includes a computer programmed to reconstruct a plurality of temporally non-uniformly spaced images from the non-uniform projection data, interpolate the plurality of non-uniform images to form a plurality of temporally uniform images, and apply a perfusion map generation process to the plurality of temporally uniform images.
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Licato et al., “Investigation of the Effects of Sampling Interval on Parameter Estimates from CT Perfusion,” Radiological Society of North America, Inc., 2006.
Licato et al., Presentation—“Investigation of the Effects of Sampling Interval on Parameter Estimates from CT Perfusion,” Radiological Society of North America, Inc., 2006.
Aluri Srinivas
Hagiwara Akira
Hsieh Jiang
Imas Olga
Licato Paul E.
General Electric Company
Glick Edward J
Taningco Alexander H
Ziolkowski Patent Solutions Group, SC
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