Simulation studies of flat-panel PEM detectors based on GATE

DONG Xiaoxia WANG Mengdie HU Guangshu ZHANG Hui

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Simulation studies of flat-panel PEM detectors based on GATE

更新时间：2021-03-05

- Simulation studies of flat-panel PEM detectors based on GATE
- NUCLEAR TECHNIQUES Vol. 35, Issue 1, (2012)
- 作者机构：
  
  清华大学医学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： R816.4
- Published：01 January 2012
- 稿件说明：
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[1]董晓霞,汪梦蝶,胡广书,张辉.基于GATE的双平板正电子发射乳腺断层成像系统的仿真研究[J].核技术,2012,35(01):60-64.

DONG Xiaoxia WANG Mengdie HU Guangshu ZHANG Hui. Simulation studies of flat-panel PEM detectors based on GATE[J]. Nuclear techniques, 2012, 35(1): 60-64.
[1]董晓霞,汪梦蝶,胡广书,张辉.基于GATE的双平板正电子发射乳腺断层成像系统的仿真研究[J].核技术,2012,35(01):60-64. DOI：

DONG Xiaoxia WANG Mengdie HU Guangshu ZHANG Hui. Simulation studies of flat-panel PEM detectors based on GATE[J]. Nuclear techniques, 2012, 35(1): 60-64. DOI：

摘要

采用Monte Carlo法仿真软件GATE

构建专用于乳腺成像的双平板正电子发射断层成像系统PEM并研究其性能。参考NEMA NU 4–2008标准

并在试验中略作改动。研究了PEM（positron emission mammography）的灵敏度、散射分数、晶体散射、计数率、固有空间分辨率等参数。结果表明

在350–650 keV能窗、6 cm平板间距下

系统灵敏度达14.17%

固有空间分辨率约1.2 mm;乳腺仿体活度为29.6 MBq时

噪声等效计数率NECR为1.508×105/s

满足PEM系统所需。

Abstract

In this work

we used the GATE code to simulate a dual-head positron emission mammography(PEM) system using LYSO detectors and evaluate its performances.The NEMA NU 4-2008 standard

modified slightly

was referred for the PEM system.System performances of sensitivity

phantom scattering

crystal scattering

counting rate and intrinsic spatial resolution were simulated.A peak absolute sensitivity of 14.17%

intrinsic spatial resolution of 1.2 mm and the peak NEC rate of 1.508×105/s at an activity of 29.6 MBq in a breast phantom were found at a 350–650 keV energy window and 6 cm detector separation

meeting the system needs.

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Related Author

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Yamei LI

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Related Institution

Department of Nuclear Medicine, the First Affiliated Hospital of Nanchang University

重庆大学光电技术及系统教育部重点实验室

重庆理工大学光电信息学院

复旦大学上海医学院肿瘤学系

PET Center,Shanghai Cancer Hospital Affiliated to Fudan University,and Department of Oncology,Medical College,Fudan University

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