Electron-tracking Compton camera imaging of technetium-95m

被引：3

作者：

Hatsukawa, Yuichi ^{[1
]}

Hayakawa, Takehito ^{[1
]}

Tsukada, Kazuaki ^{[2
]}

Hashimoto, Kazuyuki ^{[1
]}

Sato, Tetsuya ^{[2
]}

Asai, Masato ^{[2
]}

Toyoshima, Atsushi ^{[2
]}

Tanimori, Toru ^{[3
]}

Sonoda, Shinya ^{[3
]}

Kabuki, Shigeto ^{[4
]}

Kimura, Hiroyuki ^{[5
]}

Takada, Atsushi ^{[3
]}

Mizumoto, Tetsuya ^{[3
]}

Takaki, Seiya ^{[2
]}

机构：

[1] Natl Inst Quantum & Radiol Sci & Technol QST, Tokai, Ibaraki, Japan

[2] Japan Atom Energy Agcy, Tokai, Ibaraki, Japan

[3] Kyoto Univ, Kyoto, Japan

[4] Tokai Univ, Kanagawa, Japan

[5] Kyoto Pharmaceut Univ, Kyoto, Japan

来源：

PLOS ONE | 2018年 / 13卷 / 12期

基金：

日本学术振兴会;

关键词：

GAMMA-RAYS; PROTON-BEAMS; TC-99M; DESIGN; TELESCOPE; MEDICINE; THERAPY; SYSTEM;

D O I：

10.1371/journal.pone.0208909

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Imaging was conducted using an electron tracking-Compton camera (ETCC), which measures y-rays with energies in the range of 200-900 keV from Tc-95m. Tc-95m was produced by the Mo-95 (p, n) Tc-95m reaction on a Mo-95-enriched target. A method for recycling( 95)Mo-enriched molybdenum trioxide was employed, and the recycled yield of Mo-95 was 70%-90%. Images were obtained with the gate of three energies. The results showed that the spatial resolution increases with increasing y-ray energy, and suggested that the ETCC with high-energy y-ray emitters such as Tc-95m is useful for the medical imaging of deep tissue and organs in the human body.

引用

页数：12

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