Abstract：Objective Our study focused on discuss the feasibility of the coronary CTA examinations for the arrhythmia patients by
using high temporal resolution wide-area detector CT. Methods A total of 60 patients with arrhythmia (Group A) and 60 patients
with sinus heart rate (Group B) were enrolled and underwent coronary CTA examinations by using new generation wide-detector row
CT scanner. Auto selection of optimum cardiac phase technique was used to select a series of axial image with least motion artifact.
Coronary artery tracing technique was then used to reconstruct the 3D reconstructed images which were then analyzed in AW 4.6
work station. Body mass index (BMI), heart rate (HR), CT value (HU), objective noise (SD), dose-length product (DLP) values
were recorded. Subjective and objective image quality were evaluated. Results The two groups matched in BMI, HU and SD values
(P>0.05). Group A owned 8 cases with HR > 100 bpm while group B owned 46 cases of atrial fibrillation, 12 cases of premature
beat and 2 cases of bigeminy coupled rhythm. Subjective evaluation resulted in no statistical difference (P>0.05). Effective radiation
doses of group A was higher than that of group B (P<0.05). Conclusion The coronary CTA examinations for the arrhythmia patients
are effective by using high temporal resolution wide-area detector CT, with high image quality.
钟朝辉，陈疆红，原媛，杨正汉，王振常，张婷婷，张景东. 高时间分辨率宽体探测器CT对心律失常患者冠状动脉CTA的可行性研究[J]. 中国医疗设备, 2018, 33(6): 59-62.
ZHONG Zhaohui, CHEN Jianghong, YUAN Yuan, YANG Zhenghan, WANG Zhenchang, ZHANG Tingting, ZHANG Jingdong. Feasibility of the Coronary CTA Examinations for Arrhythmia Patients by
Using High Temporal Resolution Wide-Area Detector CT. China Medical Devices, 2018, 33(6): 59-62.
