NDLI: Gating threshold value determination for the motion gating of positron emission tomography/computed tomography

Content Provider	IEEE Xplore Digital Library
Author	Jianfeng He Rui Cui Zeng Fu Yunhai Ji Yu Hong Liang Lu Tianchao Wang
Copyright Year	2014
Description	Author affiliation: Coll. of Inf. Eng. & Autom., Kunming Univ. of Sci. & Technol., Kunming, China (Jianfeng He; Rui Cui; Zeng Fu) \|\| Dept. of Med. imaging, First People's Hosp. of Yunnan Province, Kunming, China (Liang Lu; Tianchao Wang) \|\| Centre of PET/CT, Kunming Gen. Hosp. of PLA, Kunming, China (Yu Hong) \|\| Centre of PET/CT, First People's Hosp. of Yunnan Province, Kunming, China (Yunhai Ji)
Abstract	Gating technique is a common way to reduce the effect of breathing movement in the imaging of positron emission tomography/computed tomography (PET/CT). Gating threshold value selection will directly affect the quality level of respiratory motion gating. Most methods of gating threshold value selection are implemented by manually determining, which easily leads to an inaccurate gating. Therefore, exploring an effective method of determining the gating threshold value for respiratory motion gating is very important. In this study, a method to automatically determine the threshold value by the slope rate relationship between the adjacent absolute errors of coincidence events was proposed. We use geant 4 application tomographic emission (GATE) software package to simulate realistic PET/CT scanner, and build geometry phantom for respiratory motion simulation. Compared with the manually threshold value determination, the proposed method can make the result of gating correction closer to the real situation. The results prove that the method of automatic determination the threshold value can efficiently and automatically determine the threshold value, and overcome the limitation of the manually threshold value determination.
Starting Page	189
Ending Page	193
File Size	234213
Page Count	5
File Format	PDF
e-ISBN	9781479958382
DOI	10.1109/BMEI.2014.7002768
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-10-14
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image quality PSNR gating threshold value Computed tomography Phantoms PET/CT Logic gates gating respiratory motion correction coincidence events Positron emission tomography
Content Type	Text
Resource Type	Article

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