中华医学杂志（英文版）2012，Vol.125Issue(8)：1469-1474,6.DOI:10.3760/cma.j.issn.0366-6999.2012.08.020
Assessment of right ventricular function for patients with rheumatic mitral stenosis by 64-slice multi-detector row computed tomography: comparison with magnetic resonance imaging
Assessment of right ventricular function for patients with rheumatic mitral stenosis by 64-slice multi-detector row computed tomography: comparison with magnetic resonance imaging
ZHANG Xiao-chun 1YANG Zhi-gang 2GUO Yin-kun 2ZHANG Rui-ming 3WANG Jian 1ZHOU Dai-quan 1CHENG Lin 1CHEN Lin1
作者信息
- 1. Department of Radiology, Southwest Hospital, the Third Military Medical University, Shapingba, Chongqing 400038, China
- 2. Department of Radiology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
- 3. Department of General Surgery, the First Affiliated Hospital, Inner Mongolia Medical College, Hohhot, Inner Mongolia 410041,China
- 折叠
摘要
Abstract
Background Right ventricular (RV) dysfunction ensues due to rheumatic mitral stenosis (RMS).The evaluation of RV function is clinically important for the diagnosis,treatment,and follow-up for patients with different degrees of RMS.Thepurpose of this study was to determine whether the 64-slice multi-detector row computed tomography (64-slice MDCT)can assess the RV function in RMS with high accuracy and reproducibility when compared to MR imaging (MRI).Methods Right ventricular end-diastolic and end-systolic volumes (RV-EDV and RV-ESV),stroke volume (RV-SV),ejection fraction (RV-EF),cardiac output (RV-CO),and wall mass (RV-Mass) were measured with dedicated cardiac analysis software on 64-slice MDCT and compared with values measured with MRI in 43 consecutive patients with RMS.Agreement between MRI and 64-MDCT results were compared with Bland and Altman analysis and linear regression analysis.Repeated measurements were performed to determine intraobserver and interobserver variability.Results No significant differences were revealed in calculated RV function parameters between the two methods.RV-EDV,RV-ESV,RV-SV,RV-EF,RV-CO,and RV-Mass by 64-slice MDCT were similar to those by MRI (P＞0.05).There were good correlations (r=0.98,0.97,0.96,0.96,0.95 and 0.77,respectively) and close agreement (bias=-0.2 ml,-1.0ml,0.8 ml,0.5％,26.1 ml,and 0.5 g,respectively,P＞0.05).The variability in 64-slice MDCT measurements was similar to that in MRI values.Conclusion ECG-gated 64-slice MDCT could assess the RV function in RMS with high accuracy and reproducibility when compared to MRI.关键词
cardiac imaging techniques/ventricular function/mitral valve stenosis/magnetic resonance imagingKey words
cardiac imaging techniques/ventricular function/mitral valve stenosis/magnetic resonance imaging引用本文复制引用
ZHANG Xiao-chun,YANG Zhi-gang,GUO Yin-kun,ZHANG Rui-ming,WANG Jian,ZHOU Dai-quan,CHENG Lin,CHEN Lin..Assessment of right ventricular function for patients with rheumatic mitral stenosis by 64-slice multi-detector row computed tomography: comparison with magnetic resonance imaging[J].中华医学杂志（英文版）,2012,125(8):1469-1474,6.
