Development of a GSO detector assembly for a continuous blood sampling system

Author

Kudomi, Nobuyuki ; Choi, Eunjoo ; Yamamoto, Seiichi ; Watabe, Hiroshi ; Kim, Kyeong Min ; Shidahara, Miho ; Ogawa, Mikako ; Teramoto, Noboru ; Sakamoto, Eishi ; Iida, Hidehiro

Author_Institution

Nat. Cardiovascular Center Res. Inst., Osaka, Japan

Volume

50

Issue

1

fYear

2003

fDate

2/1/2003 12:00:00 AM

Firstpage

70

Lastpage

73

Abstract

A new input function monitoring system has been developed and evaluated using a GSO detector assembly for both PET and SPECT quantitative studies. Energy resolutions were 11% for 511 keV photons, 20% for 140 keV(^99mTc) photons and 28% for 70 keV(²⁰¹Tl) photons, enabling the use of this system in SPECT studies. The paired assembly of crystals provided an absolute sensitivity of approximately 7% for PET tracers and 70% for ^99mTc and ²⁰¹Tl (SPECT tracers). Multiple arrangement of paired detectors would make it possible to correct for the transit time of radioactivity through the catheter tube. This study demonstrates that the present system can be of use in both clinical and small animal studies using SPECT and PET tracers.

Keywords

biomedical equipment; positron emission tomography; single photon emission computed tomography; solid scintillation detectors; 140 keV; 511 keV; 70 keV; ²⁰¹Tl; ^99mTc; GSO detector; Gd₂SiO₅; PET; SPECT; Tc; Tl; blood sampling system; catheter; energy resolution; small animal; Assembly systems; Blood; Catheters; Detectors; Energy resolution; Monitoring; Photonic crystals; Positron emission tomography; Sampling methods; Single photon emission computed tomography;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.2002.807869

Filename

1178692