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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 |
| Department of Radiology, Beijing Shijitan Hospital Affiliated to Capital Medical University, Beijing 100038, China |
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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.
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Received: 13 August 2014
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Corresponding Authors:
WEN Ting-guo
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2014, Vol. 25 
