Calibration of PET scanners with a new traceable point-like Ge68/Ga68 source

被引：0

作者：

Hasegawa, Tomoyuki ^{[1
]}

Oda, Keiichi ^{[2
]}

Wada, Yasuhiro ^{[3
]}

Sato, Yasushi ^{[4
]}

Murayama, Hideo ^{[5
]}

Yamada, Takahiro ^{[6
]}

Matsumoto, Mikio ^{[6
]}

Igarashi, Masafumi ^{[7
]}

Iryo, Jun ^{[7
]}

Kamitaka, Hiroaki ^{[7
]}

机构：

[1] Kitasato Univ, Allied Hlth sci, Minami Ku, Kitasato 1-15-1, Sagamihara, Kanagawa 228, Japan

[2] Tokyo Metropolitan Inst Gerontol, Tokyo, Japan

[3] RIKEN, Ctr Mol Imaging Sci, Wako, Saitama, Japan

[4] Natl Inst Adv Ind Sci & Technol, Ibaraki, Japan

[5] NIRS, Chiba, Japan

[6] JRIA, Tokyo, Japan

[7] Kitasato Univ, Allied Hlth Sci, Sagamihara, Kanagawa, Japan

来源：

2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE (NSS/MIC) | 2011年

关键词：

D O I：

暂无

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：

We have been developing reliable and convenient calibration methods based on the use of point-like radioactive sources. In the present study, we used a newly developed traceable point-like Ge-68/Ga-68 radioactive source for determining calibration factors of a PET scanner. The point-like Ge-68/Ga-68 radioactive source consists of a spherical aluminum absorber with an outer diameter of 8 mm and a small radioactive bead in it. The physical characteristics of the source were evaluated with a Monte Carlo simulation code based on Geant4. The source radioactivity was calibrated at an accredited calibration facility. The point-like source was placed in the field-of-view of a clinical PET scanner, SET-2400W (Shimadzu Co.). The calibration factors determined with the point-like source were consistent with those determined by a conventional standard calibration method within a reasonable uncertainty. In conclusion, the proposed method with newly developed traceable point-like sources is useful for calibrating PET scanners.

引用

页码：2880 / 2882

页数：3

共 6 条

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