ハーフセコンドマルチスライスCTによるretrospective ECG-gate法の性能評価 : 動態ファントムによる容積測定実験

概要

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ECG synchronized technique on multi-slice CT provide the thinner(less 2 mm slice thickness) and faster(0.5sec/rotation) scan than that of the single detector CT and can acquire the coverage of the entire heart volume within one breath-hold. However, temporal resolution of multi-slice CT is insufficient on practical range of heart rate. The purpose of this study was to evaluate the accuracy of volumetry on cardiac function measurement in retrospective ECG-gated helical scan. We discussed the influence of the degradation of image quality and limitation of the heart rate in cardiac function measurement(volumetry) using motion phantom.
社団法人日本放射線技術学会の論文