第90回北米放射線学会(RSNA)に参加して(平成16年度後期国際研究集会派遣会員報告書, 学術交流委員会だより)

概要

論文の詳細を見る
A cardiac phantom, in which the heart rate could be changed at constant EDV and ESV, was imaged in the RAO 30° projection. To determine the effect on EDV, ESV, and SV, images were obtained at heart rates from 40 to 150 beats/min (in 10-beat increments) and frame rates of 6.3, 8.3, 12.5, and 25 frames/sec. In addition, another phantom and clinical images were used to determine changes of EDV, ESV, and SV at reduced frame rates of 12.5 and 8.3 frames/sec. At frame rates of 12.5 and 25, no changes of EDV or ESV occurred, even when there was an increase of heart rate. Errors and variations of EDV and ESV became marked at a frame rate of 8.3 frames/sec with a heart rate of 120 beats/min or more and at 6.3 frames/sec with a heart rate of 80 beats/min or more. This was probably because the maximum diastolic or systolic excursion was not reached by the left ventricle.
公益社団法人日本放射線技術学会の論文
2005-08-20