Coronary Artery Imaging in Patients with High Heart Rate by Dual-source CT:The Initial Experience
- VernacularTitle:高心率患者双源CT冠状动脉成像初步研究
- Author:
Zhuhua ZHANG
;
Zhengyu JIN
;
Shuyang ZHANG
;
Songbai LIN
;
Dongjing LI
;
Lingyan KONG
;
Yining WANG
;
Lan SONG
;
Yun WANG
;
Wenmin ZHAO
;
Linhui WANG
;
Xiaona ZHANG
;
Yunqing ZHANG
;
Bing QI
;
Kai XU
;
Jixiang LIANG
;
Haifeng ZHU
;
Wenbin MOU
;
Liren ZHANG
;
Wenling ZHU
;
Qi MIAO
;
Qi FANG
- Publication Type:Journal Article
- Keywords:
tomography ,X-ray computed;
coronary heart disease;
tachycardia
- From:
Journal of Practical Radiology
2001;0(08):-
- CountryChina
- Language:Chinese
-
Abstract:
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 30 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.
