TCT-80Aの性能と評価 : 第二報

概要

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The performance of Rotate/Rotate type CT scanner (Toshiba CT scanner TCT-80A) was evaluated base items of user's initial acceptance tests (Phase II), in "Standard of performance evaluation for X-ray computed tomography (first recommendation)", proposed by Dr. E. Takenaka et al. in 1979. In this report (part 2), the results of measurement of low contrast resolution, radiation dose, artifact, size dependency, position dependency, edge effect and linearity of CT number are described. When measured using recommended phantoms, low contrast resolution and radiation dose under technique factors of routine examination were 2 mm in diameter and 1.34 rad respectively in scan field S. Size dependency and position dependency were observed. Convolution filter of FC-3 shows the best edge effect at the boundary of high and low absorption material. Linearity test shows slight deviation from linear line at the vicinity of CT number O.
公益社団法人日本放射線技術学会の論文
1983-09-01