高心率患者双源CT冠状动脉成像初步研究  被引量:22

Coronary Artery Imaging in Patients with High Heart Rate by Dual-source CT:The Initial Experience

在线阅读下载全文

作  者:张竹花[1] 金征宇[1] 张抒扬[2] 林松柏[3] 李冬晶[3] 孔令燕[1] 王怡宁[1] 宋兰[1] 王云[1] 赵文敏[1] 王林辉[1] 张晓娜[1] 张云庆[1] 齐冰[1] 徐凯[1] 梁继祥[1] 朱海峰[1] 牟文斌[1] 张立仁[1] 朱文玲[2] 苗齐[4] 方圻[2] 

机构地区:[1]中国医学科学院中国协和医科大学北京协和医院放射科,北京100730 [2]中国医学科学院中国协和医科大学北京协和医院心内科,北京100730 [3]中国医学科学院中国协和医科大学北京协和医院特需医疗部,北京100730 [4]中国医学科学院中国协和医科大学北京协和医院心外科,北京100730

出  处:《实用放射学杂志》2007年第8期1106-1109,共4页Journal of Practical Radiology

摘  要:目的初步探讨高心率患者无需口服倍他乐克准备的双源CT冠脉成像的扫描技术和图像质量。方法对412例患者行双源CT冠状动脉成像,其中增强扫描平均心率〉100次/min的患者共有30例。行平扫和增强扫描。用增强扫描图像行多平面重建(MPR)、最大密度投影(MIP)及容积再现技术(VRT)重建。将图像质量分为3级,按美国AHA冠状动脉分段标准评价冠状动脉各个节段的图像质量。结果30例患者增强扫描平均心率为(115.6±11.8)次/min(101—139次/min),平均屏气时间为(5.7±1.2)s。冠状动脉重建的最佳时相均为收缩期。共评价424个冠状动脉节段,其中图像质量为1级者占93.9%(398/424),图像质量为2级者占5.0%(21/424),图像质量为3级者占1.2%(5/424)。结论在无需口服倍他乐克准备的情况下,双源CT用于高心率患者的冠状动脉成像可获得非常好的冠状动脉各节段图像。Objective To explore the scanning technique and image quality of coronary artery imaging with dual - source CT without oral Betaloc preparation in the patients with high heart rate. Methods 412 cases were undergone coronary imaging with dual - source CT ( including plain and enhanced scans) ,among them,there were i0 cases with heart rate more than 100 bpm. Multi - planar reconstruction( MPR) , maximum intensity projection(MIP) and volume rendering (VR) were performed using contrast- enhanced images. The image quality was classified into 3 grades, and coronary segments named according to AHA standard were evaluated. Results The average heart rate during enhanced scan in the 30 cases was ( 115.6 ± 11.8 ) ( 101 ± 139 ) bpm ,the average breath hold time was ( 5.7 ± 1.2 ) s. The best reconstruction phase was in the systolic phase. Altogether 424 coronary segments were evaluated, among them 93.9% (398/424) belonged to the first grade,5.0% (21/424) belonged to the second grade,and 1.2% (5/424) belonged to the third grade. Conclusion Without oral administration of Betaloc preparation, good coronary artery images can be obtained in the patients with high heart rate by dual -source CT.

关 键 词:体层摄影术 X线计算机 冠状动脉疾病 心动过速 

分 类 号:R814.42[医药卫生—影像医学与核医学] R543.3[医药卫生—放射医学]

 

参考文献:

正在载入数据...

 

二级参考文献:

正在载入数据...

 

耦合文献:

正在载入数据...

 

引证文献:

正在载入数据...

 

二级引证文献:

正在载入数据...

 

同被引文献:

正在载入数据...

 

相关期刊文献:

正在载入数据...

相关的主题
相关的作者对象
相关的机构对象