Evaluation of imaging quality for coronary angiography in extensiveness ECG-gated angiography using 256-slice CT

YANG Lei; WEN Ting-guo; DUAN Yong-li; ZHAO Jun; FU Yan; YUAN Ying

Journal of China Clinic Medical Imaging ›› 2014, Vol. 25 ›› Issue (12) : 856-859.

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Evaluation of imaging quality for coronary angiography in extensiveness ECG-gated angiography using 256-slice CT

YANG Lei, WEN Ting-guo, DUAN Yong-li, ZHAO Jun, FU Yan, YUAN Ying

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Abstract

Objective:　To evaluate imaging quality of the coronary arteries with wide range ECG-gated thoracic and abdominal angiography using 256 slices CT. Methods: Thirty-four patients with chest pain undertook wide rage ECG-gated scanning using 256 slices CT, and coronary arteries were reconstructed. The image quality and diagnosis were evaluated and compared with conventional coronary CT scanning. Results:　All 508 segments in the group of wide range ECG-gated scanning were characterized, among which 89.7%(456/508) of the segments was of high-quality and 95.5%(485/508) of the segments could be evaluated. And 512 segments in the group of conventional scanning were characterized, among which 89.8%(460/512) of the segments was of high-quality and 96.3%(489/512) of the segments could be evaluated. There was no significant difference in image quality between the two groups(χ2=1.072, P=0.192). Conclusion:　Imaging quality of the coronary arteries with wide range ECG-gated thoracic and abdominal angiography using 256 slices CT can meet the requirement in patients with arrhythmias, and has high value of clinical application.

Key words

Coronary disease / Tomography / spiral computed / Coronary angiography

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YANG Lei;WEN Ting-guo;DUAN Yong-li;ZHAO Jun;FU Yan;YUAN Ying. Evaluation of imaging quality for coronary angiography in extensiveness ECG-gated angiography using 256-slice CT[J]. Journal of China Clinic Medical Imaging. 2014, 25(12): 856-859