Comparison of low-dose sequences of dual-source CT and echocardiography for preoperative evaluation of aortic valve disease

作     者：FENG Juan WANG Xi-ming JI Xiao-peng LI Hai-ou LI Qiao GUO Wen-bin WANG Zheng-jun 

作者机构：Department of UltrasoundShandong Provincial Hospital Affiliated to Shandong University Jinan Shandong 250021 China Department of Cardiovascular SurgeryShandong Provincial Hospital Affiliated to Shandong University Jinan Shandong 250021 China Shandong Provincial Key Laboratory of Diagnosis and Treatment of Cardio-cerebral Vascular Diseases Shandong Medical Imaging Research Institute Jinan Shandong 250021 China 

出 版 物：《Chinese Medical Journal》 (中华医学杂志（英文版）)

年 卷 期：2013年第126卷第23期

页      面：4423-4429页

核心收录：

学科分类：1002[医学-临床医学] 100210[医学-外科学(含：普外、骨外、泌尿外、胸心外、神外、整形、烧伤、野战外)] 10[医学] 

主　　题：radiation dose coronary CT angiography dual-source CT cardiac function aortic valve annulus diameters 

摘      要：Background Accurate evaluation of coronary artery,aortic valve annulus diameter （AVAD）,and cardiac function in patients with aortic valve disease is of great significance for surgical *** this study,we explored the preoperative evaluation of low-dose sequence （MinDose sequence） scan of dual-source CT （DSCT） for those *** Forty patients suspected for aortic valve disease （the experimental group） underwent MinDose sequence of DSCT to observe coronary artery,AVAD,and left ventricular ejection fraction （LVEF）.Another 33 subjects suspected for coronary artery disease （the control group） underwent conventional retrospective electrocardiographically-gated sequence of ***-dimensional transthoracic echocardiography （2D-TTE） and four-dimensional transthoracic echocardiography （4D-TTE） were applied in the experimental group to measure AVAD and LVEF and compared with *** There was a strong correlation between LVEFs measured by 2D-TTE and MinDose-DSCT （r=0.87,P 0.01）,as well as between 4D-TTE and MinDose-DSCT （r=0.90,P 0.01）.AVAD measured by MinDose-DSCT was in good agreement with corresponding measurements by 2D-TTE （r=0.90,P 0.01）.The effective dose in the experimental group was 63.54％ lower than that in the control *** MinDose sequence of DSCT with a low radiation dose serving as a one-stop preoperative evaluation makes effective assessment of the coronary artery,AVAD,and LVEF for patients with aortic valve disease.