Retrospective analysis for quality control of a dual-detector SPECT

GU Wenchao1; 2 LIU Jian1 SONG Jiong1  1

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Retrospective analysis for quality control of a dual-detector SPECT

更新时间：2021-03-05

- Retrospective analysis for quality control of a dual-detector SPECT
- NUCLEAR TECHNIQUES Vol. 34, Issue 9, (2011)
- 作者机构：
  
  1. 同济大学附属东方医院核医学科
  2. 复旦大学附属肿瘤医院放射诊断科
- 作者简介：
- 基金信息：
- DOI：
  CLC： R197.39
- Published：01 September 2011
- 稿件说明：
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[1]顾文超,刘健,宋炯.双探头SPECT质控回顾性分析[J].核技术,2011,34(09):701-704.

GU Wenchao1, 2 LIU Jian1 SONG Jiong1 1. Retrospective analysis for quality control of a dual-detector SPECT[J]. Nuclear techniques, 2011, 34(9): 701-704.
[1]顾文超,刘健,宋炯.双探头SPECT质控回顾性分析[J].核技术,2011,34(09):701-704. DOI：

GU Wenchao1, 2 LIU Jian1 SONG Jiong1 1. Retrospective analysis for quality control of a dual-detector SPECT[J]. Nuclear techniques, 2011, 34(9): 701-704. DOI：

摘要

根据NEMA标准对一台SPECT进行固有均匀性、旋转中心校正、四象限铅栅模型、Jaszczak系统模型、Hoffman脑3D模型测试。2003–2010年质控数据分析结果显示

有效视野（UFOV）固有积分均匀性与旋转中心均无明显差异（p>0.05）

中心视野（CFOV）固有积分均匀性从2007年开始有明显差异（p<0.05）。表明仪器随着年限的延长

性能参数逐渐变差

通过质控能将参数维持在标准范围

保证图像质量以及诊断符合率。

Abstract

Abstact In this work

quality control data of a SPECT in 2003–2010 were analyzed by t test.According to the NEMA standard for uniformity

the center of rotation

bar phantom

Jaszczak phantom and the Hoffman phantom were measured in the QC.Compared with the 2003 data

no significant difference was found in the UFOV intrinsic integral uniformity and center of rotation

but the CFOV intrinsic integral uniformity has been worsening since 2007(p<0.05)

indicating the performance decrease with equipment age.By the QC measurements

we were able to ensure image quality and diagnostic accuracy of the SPECT.

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