Automatic selection of optimal cardiac-phase in coronary CT angiography--its clinical usefulness for patients with atrial fibrillation

Ryota Matsumoto, Hiroshi Narita, Hirofumi Anno, Yoshihiro Ida, Yoshihiro Sanda, Kazuhiro Katada, Sadako Motoyama, Masayoshi Sarai, Masaharu Tsuyuki

研究成果: Article査読

抄録

The optimal cardiac phases for coronary CT angiography (CTA) are end-systole and mid-diastole, in which cardiac movement is slow. In conventional methods, these cardiac phases are determined by visual selection. We have compared the images in the optimal cardiac phases that were selected by the conventional method and cardiac-phase search software (Phase Navi), and examined the clinical usefulness of Phase Navi in patients with atrial fibrillation. The subjects were 38 patients (regular rhythm: 20, atrial fibrillation: 18). The continuity scores of patients with regular rhythm (Phase Navi, conventional methods) were 2.4+/-0.3-2.5+/-0.3 in end-systole and 2.4+/-0.5-2.4+/-0.4 in mid-diastole. The scores of patients with atrial fibrillation (Phase Navi, conventional methods) were 2.3+/-0.4-2.3+/-0.4 in end-systole, and 2.2+/-0.5-2.1+/-0.6 in mid-diastole. Because the continuity scores of the optimal images from Phase Navi were similar to those from the conventional method, Phase Navi had clinical usefulness in patients with atrial fibrillation.

本文言語English
ページ(範囲)442-449
ページ数8
ジャーナルNippon Hoshasen Gijutsu Gakkai zasshi
64
4
DOI
出版ステータスPublished - 20-04-2008

All Science Journal Classification (ASJC) codes

  • Medicine(all)

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