Evaluation of the system performance and clinical images of the single photon emission computed tomography for head using ring arranged detector

K. Ejiri, H. Toyama, Y. Kato, T. Narita, G. Takeshita, A. Takeuchi, S. Koga

研究成果: Article査読

1 被引用数 (Scopus)

抄録

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 3,000 kcounts to be acquired. SPECT images of the HEADTOME SET-031 were considered very useful to diagnose the cerebrovascular disease.

本文言語English
ページ(範囲)35-38
ページ数4
ジャーナルRadioisotopes
37
1
DOI
出版ステータスPublished - 01-1988

All Science Journal Classification (ASJC) codes

  • 放射線

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