A study on CZT and scintillator based micro-PETs with Compton Tracing Technology

Changyeon Yoon; Wonho Lee

doi:10.1109/NSSMIC.2014.7431278

A study on CZT and scintillator based micro-PETs with Compton Tracing Technology

Changyeon Yoon, Wonho Lee

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In this research, we compared the performance of a CZT Compton PET and those of conventional micro-PETs using scintillators in which Compton tracing technology was applied. The conventional micro-PETs used photoelectric interaction only as effective events for PET image reconstruction and their position resolution are limited by the size of a single scintillator voxel. The CZT Compton PET, however, was made of CdZnTe semiconductor which showed high energy and position resolution. In addition, in the case of pixellized CZT detector, the interaction sequence inside the detector can be identified effectively and hence not only photoelectric but also Compton scattering interaction can be useful events for PET image reconstruction. At 511 keV, the probability of Compton scattering is approximately three times larger than that of photoelectric events, which results in high detection efficiency and improved reconstruction image. Based on the detection efficiency and reconstructed image, the performances of PET systems were compared with each other.

Original language	English
Title of host publication	2014 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2014
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781479960972
DOIs	https://doi.org/10.1109/NSSMIC.2014.7431278
Publication status	Published - 2016 Mar 10
Event	IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2014 - Seattle, United States Duration: 2014 Nov 8 → 2014 Nov 15

Publication series

Name	2014 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2014

Other

Other	IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2014
Country/Territory	United States
City	Seattle
Period	14/11/8 → 14/11/15

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant (2012-006399 and 2012M2A2A4010292) and BK21Plus (21A20132212094) funded by the Korean government (MEST)

Publisher Copyright:
© 2014 IEEE.

ASJC Scopus subject areas

Nuclear and High Energy Physics
Radiology Nuclear Medicine and imaging

Access to Document

10.1109/NSSMIC.2014.7431278

Cite this

Yoon, C., & Lee, W. (2016). A study on CZT and scintillator based micro-PETs with Compton Tracing Technology. In 2014 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2014 Article 7431278 (2014 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2014). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/NSSMIC.2014.7431278

A study on CZT and scintillator based micro-PETs with Compton Tracing Technology. / Yoon, Changyeon; Lee, Wonho.
2014 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2014. Institute of Electrical and Electronics Engineers Inc., 2016. 7431278 (2014 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2014).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Yoon, C & Lee, W 2016, A study on CZT and scintillator based micro-PETs with Compton Tracing Technology. in 2014 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2014., 7431278, 2014 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2014, Institute of Electrical and Electronics Engineers Inc., IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2014, Seattle, United States, 14/11/8. https://doi.org/10.1109/NSSMIC.2014.7431278

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abstract = "In this research, we compared the performance of a CZT Compton PET and those of conventional micro-PETs using scintillators in which Compton tracing technology was applied. The conventional micro-PETs used photoelectric interaction only as effective events for PET image reconstruction and their position resolution are limited by the size of a single scintillator voxel. The CZT Compton PET, however, was made of CdZnTe semiconductor which showed high energy and position resolution. In addition, in the case of pixellized CZT detector, the interaction sequence inside the detector can be identified effectively and hence not only photoelectric but also Compton scattering interaction can be useful events for PET image reconstruction. At 511 keV, the probability of Compton scattering is approximately three times larger than that of photoelectric events, which results in high detection efficiency and improved reconstruction image. Based on the detection efficiency and reconstructed image, the performances of PET systems were compared with each other.",

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A study on CZT and scintillator based micro-PETs with Compton Tracing Technology

Abstract

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