Coronary artery imaging with dual-source CT:initial experience
- VernacularTitle:双源CT冠状动脉成像的初步研究
- Author:
Zhu-Hua ZHANG
;
Zheng-Yu JIN
;
Shu-Yang ZHANG
;
Song-Bai LIN
;
Dong-Jing LI
;
Ling-Yan KONG
;
Yi-Ning WANG
;
Lan SONG
;
Yun WANG
;
Wen-Min ZHAO
;
Linhui WANG
;
Xiaona ZHANG
;
Yunqing ZHANG
;
Bing QI
;
Kai XU
;
Jixiang LIANG
;
Haifeng ZHU
;
Wenbin MOU
;
- Publication Type:Journal Article
- Keywords:
Tomography,X-ray computed;
Coronary heart disease
- From:
Chinese Journal of Radiology
2001;0(09):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the scan technique and image quality of coronary artery imaging with dual-source CT without oral Betaloc preparation.Methods Plain and enhanced dual-source CT coronary artery imaging without oral Betaloc preparation was performed in 215 patients with clinically suspected coronary heart disease or early-stage coronary lesions.Calcium scoring with plain scan images and multi-planar reconstruction(MPR),maximum intensity projection(MIP)and volume rendering technique (VRT)reconstruction with enhanced scan images were made in all cases.The scan technique and post reconstruction experience was summarized.The image quality was classified as three grades,and coronary segments classified according to AHA standards were evaluated.Results The median of calcium score of the 215 cases was 82.2(2.3—1827.9).The average heart rate of the enhanced scan was(80.6?15.3) (57—139)bpm.The post reconstruction methods with which coronary segments could be shown as best as possible consisted of(1)multiphases screening methods,(2)bi-phase or multiple-phase complement method,and(3)premature beat removing or arrhythmia shifting method.Altogether 3026 coronary segments were evaluated,among them 97.5% were evaluated as grade 1 image quality,2.0% were evaluated as grade 2 and 0.5% were evaluated as grade 3.The coronary segments in 91 cases were completely normal, while 112 segments with