Multidetector SPECT scanner for brain and body: System performance and applications

Journal Article · Sat Jul 01 04:00:00 EDT 1989 · J. Comput. Assist. Tomogr.; (United States)

DOI:https://doi.org/10.1097/00004728-198907000-00042· OSTI ID:5700658

Yonekura, Y; Fujita, T; Nishizawa, S; Mukai, T; Koide, H; Yamamoto, K; Tamaki, N; Konishi, J; Hirose, Y

A multidetector whole-body single photon emission computed tomography (SPECT) scanner has been developed for high-resolution dynamic SPECT imaging. The scanner consists of three detector rings with 128 NaI crystals (14 x 26 x 30 mm) in each ring, providing three tomographic images at 30 mm intervals. This system uses a rotation of collimator around the patient combined with the detector rotation for fine data sampling. The in-plane spatial resolution is 14.2 mm (full width of half maximum) with high-resolution (HR) collimator, 22.0 mm with high-sensitivity (HS) collimator, and 10.6 mm with high-resolution brain (HRB) collimator. The axial resolution is 24.0, 34.0, and 23.5 mm with HR, HS, and HRB collimator, respectively. The sensitivity measured with a 20% energy window for /sup 99m/Tc in a 20 cm diameter phantom is 5.7, 17.0 and 6.6 kcps/muCi/ml with HR, HS, and HRB collimator, respectively. This scanner allows dynamic SPECT imaging both for brain and body organs with good spatial resolution.

• Research Organization: Kyoto Univ. Faculty of Medicine (Japan)
• OSTI ID: 5700658
• Journal Information: J. Comput. Assist. Tomogr.; (United States), Journal Name: J. Comput. Assist. Tomogr.; (United States) Vol. 13:4; ISSN JCATD
• Country of Publication: United States
• Language: English

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62 RADIOLOGY AND NUCLEAR MEDICINE
BETA DECAY RADIOISOTOPES
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BODY
BRAIN
CARDIOVASCULAR SYSTEM
CENTRAL NERVOUS SYSTEM
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NUCLEI
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