リストモード再構成における定量化精度向上のための補正方法

Japanese Patent JP7242708

B2

A non-transitory computer-readable medium stores instructions readable and executable by a workstation (18) including at least one electronic processor (20) to perform an image reconstruction method (100) to reconstruct list mode data acquired over a frame acquisition time using a plurality of radiation detectors (17) in which the events of the list mode data is timestamped. The method includes: for the sub-frame bins of a plurality of sub-frame bins into which the frame acquisition time is divided, determining a sub-frame singles rates map for the plurality of radiation detectors from the list mode data whose time stamps reside in the sub-frame bin; determining a singles rate for the singles events of the list mode data using the sub-frame singles rates maps wherein the singles rates for the singles events are determined at a temporal resolution that is finer than the frame acquisition time; determining correction factors for the list mode data using the determined singles rates for the singles events of the list mode data; and reconstructing the list mode data of the frame acquisition time using the determined correction factors to generate a reconstructed image for the frame acquisition time.

Song Shiyun
Bai Chuan Young
Ye Jin Han
Andrey F Andry
Fu Chi Chan

JP2020561946A

March 20, 2023

January 30, 2019

Click for automatic bibliography generation  

Koninklijke Philips N.V.

G01T1/161; G01T1/164

JP2001099937A
JP2017516988A
JP2013234995A
JP2013104828A
JP9184885A

WO2012169632A1
US20080285828

HUDSON, H. M. et al.,Accelerated image reconstruction using ordered subsets of projection data,IEEE Transactions on Medical Imaging,1994年,Vol. 13, No. 4,P. 601-609,[検索日:2022.07.06], ,

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