Right ventricular dysfunction and dilatation in patients with mitral regurgitation: analysis using ECG-gated multidetector row computed tomography

International Journal of Cardiology
Ying-Kun GuoZhi-hui Dong

Abstract

This study prospectively compared the accuracy of a sixty-four slice multidetector row CT (64-MDCT) in cardiac magnetic resonance imaging (MRI) for the assessment of right ventricular (RV) dysfunction and dilatation in patients with mitral regurgitation. Eighty-four patients underwent ECG-gated 64-MDCT for the assessment of RV dysfunction and dilatation; 54 of these patients had known mitral regurgitation. End-diastolic and end-systolic volumes, stroke volume, and ejection fraction were measured using the 64-MDCT, and these results were retrospectively compared to the results of MRI (reference standard). Agreement between the 64-MDCT and MRI results was investigated using linear regression and Bland-Altman analyses. Receiver operating characteristic analyses calculated the sensitivity and specificity of RV dilatation on 64-MDCT scans for the prediction of mitral regurgitation severity and dysfunction, respectively. No significant differences in RV function parameters were calculated between 64-MDCT and MRI (r=0.87 to 0.94; all p<0.001). Good intertechnique agreement was obtained using linear regression and Bland-Altman analyses. ROC analyses revealed that RV enlargement (>33 mm) on 64-MDCT scans predicted the RV dysfunction of ...Continue Reading

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Citations

Jul 19, 2018·European Journal of Cardio-thoracic Surgery : Official Journal of the European Association for Cardio-thoracic Surgery·Lei JiangXue-Biao Wei
Aug 7, 2018·Journal of Interventional Cardiology·Tian-Yuan XiongMao Chen
Sep 20, 2018·Seminars in Cardiothoracic and Vascular Anesthesia·J Mauricio Del RioAlina Nicoara
May 14, 2020·Catheterization and Cardiovascular Interventions : Official Journal of the Society for Cardiac Angiography & Interventions·Tian-Yuan XiongMao Chen
Mar 21, 2020·Korean Journal of Radiology : Official Journal of the Korean Radiological Society·Jin Young KimByoung Wook Choi
Oct 19, 2017·EuroIntervention : Journal of EuroPCR in Collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology·Tian-Yuan XiongMao Chen

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