[What factors affected image quality in coronary multidetector-row computed tomography?].

Takehiro Arai, Takeshi Kondo, Hitomi Morita, Tomonari Sano, Hideyuki Matsutani, Takako Sekine, Noriko Shigoka, Tadaaki Orihara, Makoto Kondo, Takahide Kodama, Akitsugu Ooida, Shinichi Takase

Research output: Contribution to journalArticlepeer-review

Abstract

Although it is well known that we usually cannot acquire a high quality coronary MDCT in patients with arrhythmia or incomplete breath-hold, we sometimes also cannot obtain a high quality coronary MDCT in patients without arrhythmia or incomplete breath-hold. We studied what factors other than arrhythmia or incomplete breath-hold affected image quality. Coronary MDCT and echocardiography were performed within one month in 2145 patients, and 452 cases of arrhythmia or 102 cases of incomplete breath-hold during scanning were eliminated. The remaining 1591 patients were studied. Those patients were divided into two groups (mid-diastolic phase reconstruction (MD) group (N=1377) and end-systolic phase reconstruction (ES) group (N=214)). Age, body weight, mean heart rate (HR) during scanning, temporal resolution (TR) and left ventricular ejection fraction (LVEF) by echocardiography were estimated. Image quality (A: Excellent (3 points), B: Acceptable (2 points), C: Unacceptable (1 point)) was evaluated. The mean image quality points of the MD group (2.9±0.3) were significantly (P

Original languageEnglish
Pages (from-to)1204-1212
Number of pages9
JournalNippon Hoshasen Gijutsu Gakkai zasshi
Volume66
Issue number9
Publication statusPublished - Sep 20 2010

ASJC Scopus subject areas

  • Medicine(all)

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