Imaging Characteristics of 124I Between 3D and 2D on Siemens ECAT HR plus PET Scanner

被引：5

作者：

Lee, Young Sub ^{[1
,2
]}

Kim, Jin Su ^{[1
]}

Kim, Hee-Joung ^{[2
]}

Woo, Sang-Keun ^{[1
]}

Kim, Jong Guk ^{[1
]}

Park, Ji Ae ^{[1
]}

Choi, Chang Woon ^{[1
]}

Lim, Sang Moo ^{[1
]}

Kim, Kyeong Min ^{[1
]}

机构：

[1] Korea Inst Radiol & Sci, Seoul 139706, South Korea

[2] Yonsei Univ, Dept Radiol Sci, Wonju 220710, South Korea

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 2013年 / 60卷 / 02期

关键词：

Image quality; reconstruction algorithms; spatial resolution; whole-body PET; PERFORMANCE EVALUATION; POSITRON EMITTERS;

D O I：

10.1109/TNS.2013.2240012

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

I-124 has a complex decay scheme with high gamma energy and low positron abundance. In this study, comparative performance measurements of I-124 were performed in terms of spatial resolution, sensitivity, and image quality. All measurements were performed using both 2D and 3D PET in both brain mode and whole body mode. The transverse and axial spatial resolutions at 1 cm were 5.56 and 6.07 mm for I-124, and were 4.58 and 4.77 mm and for F-18, respectively. Sensitivities were 0.5 kcps/MBq (2D) and 3.4 kcps/MBq (3D) for I-124, and 1.8 kcps/MBq (2D) and 9.8 kcps/MBq (3D) for F-18. The %contrast of 3D was higher than that of 2D in I-124. For I-124 PET imaging, 3D acquisition with brain mode was highest achievable imaging acquisition mode with finer spatial resolution and higher contrast. This result will be useful for I-124 PET imaging

引用

页码：797 / 801

页数：5

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