RADIOISOTOPES
Online ISSN : 1884-4111
Print ISSN : 0033-8303
ISSN-L : 0033-8303
頭部専用リング検出器型SPECT装置の性能評価と臨床画像評価
江尻 和隆外山 宏加藤 幸彦成田 孝枝竹下 元竹内 昭古賀 佑彦
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1988 年 37 巻 1 号 p. 35-38

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To evaluate the system performance, several preoperational fundamental tests of single photon emission computed tomography (SPECT) were carried out. Spatial resolutions (FWHM) measured with the point-spread functions of a 99mTc line source were 12.5 mm with a high resolution (HR) collimator and 17.2 mm with a high sensitivity (HS) collimator respectively. Slice thicknesses (FWHM) obtained from the profile curves of slice images were 17.5 mm (HR) and 29.0 mm (HS) at the center of rotation. System sensitivities were 5.4 kcps/slice (HR) and 27.8 kcps/slice (HS) . Uniformities calculated from the SPECT images of a pool phantom were 4.7% (HR) and 2.7% (HS) at the condition of 3000 kcounts to be acquired.
SPECT images of the HEADTOME SET-031 were considered very useful to diagnose the cerebrovascular disease.

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