TY - JOUR
T1 - [What factors affected image quality in coronary multidetector-row computed tomography?].
AU - Arai, Takehiro
AU - Kondo, Takeshi
AU - Morita, Hitomi
AU - Sano, Tomonari
AU - Matsutani, Hideyuki
AU - Sekine, Takako
AU - Shigoka, Noriko
AU - Orihara, Tadaaki
AU - Kondo, Makoto
AU - Kodama, Takahide
AU - Ooida, Akitsugu
AU - Takase, Shinichi
PY - 2010/9/20
Y1 - 2010/9/20
N2 - 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
AB - 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
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M3 - Article
C2 - 20975241
AN - SCOPUS:79952108146
VL - 66
SP - 1204
EP - 1212
JO - Nippon Hoshasen Gijutsu Gakkai zasshi
JF - Nippon Hoshasen Gijutsu Gakkai zasshi
SN - 0369-4305
IS - 9
ER -