The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 22, 2016

Filed:

Jan. 07, 2016
Applicant:

Toshiba Medical Systems Corporation, Otawara-shi, JP;

Inventors:

Changguo Ji, Vernon Hills, IL (US);

Yuexing Zhang, Naperville, IL (US);

Xiaolan Wang, Buffalo Grove, IL (US);

Daniel Gagnon, Twinsburg, OH (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 23/04 (2006.01); A61B 6/00 (2006.01); A61B 6/03 (2006.01);
U.S. Cl.
CPC ...
A61B 6/5205 (2013.01); A61B 6/032 (2013.01); A61B 6/4014 (2013.01); A61B 6/4241 (2013.01); A61B 6/4266 (2013.01); A61B 6/469 (2013.01); A61B 6/482 (2013.01); G01N 23/046 (2013.01);
Abstract

A method for performing reconstruction for a region of interest (ROI) of an object is provided. The method includes designating the ROI within the object, the ROI being located within a scan field of view (FOV) of a combined third- and fourth-generation CT scanner, the CT scanner including fixed photon-counting detectors (PCDs), and an X-ray source that rotates about the object in synchronization with a rotating detector. Further, the method includes determining, for each PCD, as a function of view angle, an on/off timing schedule, based on a size and location of the designated ROI, and performing a scan to obtain a first data set from the rotating detector and a second data set from the plurality of PCDs, while turning each PCD on and off according to the determined schedule. Finally, the method includes performing reconstruction using the first and second data sets to obtain ROI spectral images.


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