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

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish
Pages (from-to)442-449
Number of pages8
JournalNippon Hoshasen Gijutsu Gakkai zasshi
Volume64
Issue number4
DOIs
Publication statusPublished - 01-01-2008

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Coronary Angiography
Atrial Fibrillation
Diastole
Systole
Software
Computed Tomography Angiography

All Science Journal Classification (ASJC) codes

  • Medicine(all)

Cite this

Matsumoto, Ryota ; Narita, Hiroshi ; Anno, Hirofumi ; Ida, Yoshihiro ; Sanda, Yoshihiro ; Katada, Kazuhiro ; Motoyama, Sadako ; Sarai, Masayoshi ; Tsuyuki, Masaharu. / Automatic selection of optimal cardiac-phase in coronary CT angiography--its clinical usefulness for patients with atrial fibrillation. In: Nippon Hoshasen Gijutsu Gakkai zasshi. 2008 ; Vol. 64, No. 4. pp. 442-449.
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Automatic selection of optimal cardiac-phase in coronary CT angiography--its clinical usefulness for patients with atrial fibrillation. / Matsumoto, Ryota; Narita, Hiroshi; Anno, Hirofumi; Ida, Yoshihiro; Sanda, Yoshihiro; Katada, Kazuhiro; Motoyama, Sadako; Sarai, Masayoshi; Tsuyuki, Masaharu.

In: Nippon Hoshasen Gijutsu Gakkai zasshi, Vol. 64, No. 4, 01.01.2008, p. 442-449.

Research output: Contribution to journalArticle

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AU - Narita, Hiroshi

AU - Anno, Hirofumi

AU - Ida, Yoshihiro

AU - Sanda, Yoshihiro

AU - Katada, Kazuhiro

AU - Motoyama, Sadako

AU - Sarai, Masayoshi

AU - Tsuyuki, Masaharu

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