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:
Dec. 19, 2017

Filed:

Apr. 29, 2016
Applicant:

Shimadzu Corporation, Kyoto, JP;

Inventors:

Tomoaki Tsuda, Kyoto, JP;

Masanobu Sato, Kyoto, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01T 1/20 (2006.01); A61B 6/03 (2006.01); G01T 1/172 (2006.01); G01T 1/29 (2006.01); G01T 1/164 (2006.01); A61B 6/00 (2006.01); G01T 1/208 (2006.01);
U.S. Cl.
CPC ...
A61B 6/037 (2013.01); A61B 6/4266 (2013.01); A61B 6/485 (2013.01); G01T 1/1647 (2013.01); G01T 1/172 (2013.01); G01T 1/208 (2013.01); G01T 1/2018 (2013.01); G01T 1/2985 (2013.01);
Abstract

A PET apparatus and a timing correction method of this invention select two target gamma-ray detectors which count coincidences, select a reference detector which is one detector out of the two selected gamma-ray detectors, select a gamma-ray detector different from the other, opposite detector, and when repeating the selection, make a time lag histogram concerning two gamma-ray detectors selected in the past a reference, and correct a time lag histogram concerning gamma-ray detectors selected this time based on the reference. By repeating an operation to make the corrected time lag histogram concerning the two gamma-ray detectors a new reference, an optimal time lag histogram can be obtained without repeating many measurements and computations.


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