中国医疗设备2018，Vol.33Issue(6)：67-70,4.DOI:10.3969/j.issn.1674-1633.2018.06.017
自动选择最佳期相在高心率患者冠状动脉CTA成像中的应用
Assessment of Automated Selection of the Optimal Cardiac Phase in Coronary CT Angiography of High Heart Rate Patients
张栋青 1史朴军 1蔡显圣 1郭文涛 1吴志东1
作者信息
- 1. 聊城市人民医院设备科,山东聊城 252000
- 折叠
摘要
Abstract
Objective To evaluate the effectiveness of the SmartPhase function on automatically select optimal cardiac phase and reconstruct images in the coronary artery computerized tomography angiography (CCTA) with high heart rate (beats per minute>80) patients.Methods Forty-eight patients who had undergone CCTA in our hospital were retrospectively collected. Scanning phase was 40％-55％ based on the recommendation from AutoGating. Images of the entire phase were reconstructed at a 1％ interval and the phase with the best image quality was selected as the control group. The phase chosen by Smartphase was the experimental group. The coronary artery image quality scores from the two groups were analyzed using the rank sum test.Results The phase difference between the two groups were within 2％ in 70％ of the total cases. Image quality score in the control group and in the experimental group were 3.83±0.43 and 3.80±0.43, respectively. There was no significant statistic difference between the two groups (P=0.680>0.05). When the phase difference was more than 2％, image quality score in the control and experimental group were 3.83±0.54 and 3.72±0.58,P=0.102>0.05. There was no significant statistic difference between two groups. Conclusion Image quality of the optimal cardiac phase selected by the SmartPhase function is statistically equivalent to that selected by blind readers. Smartphase provides the potential of higher work efficiency.关键词
冠脉CTA/高心率/期相选择/SmartPhase/冠脉血管的图像质量Key words
CCTA/high heart rate/selection of cardiac phase/SmartPhase/image quality of coronary artery分类
医药卫生引用本文复制引用
张栋青,史朴军,蔡显圣,郭文涛,吴志东..自动选择最佳期相在高心率患者冠状动脉CTA成像中的应用[J].中国医疗设备,2018,33(6):67-70,4.
