PURPOSE: The aim of our study was to evaluate the role of multidetector-row computed tomography (MDCT) in patients referred for heart valve surgery. We studied the diagnostic performance of CT coronary angiography (CTCA) compared with conventional coronary angiography (CCA) before valve surgery. MATERIALS AND METHODS: During a 13-month period, 55 consecutive patients under evaluation for aortic (40/55) or mitral valve (15/55) disease before potential valve replacement underwent CTCA using a 64-detector-row scanner within 2 months of CCA for comparative purposes. All 17 major coronary artery segments were evaluated by one observer and compared with the reference standard. Patient-based, vessel-based and segment-based analyses of the data were performed. RESULTS: Prevalence of significant coronary artery disease, defined as having at least one stenosis >/=50% per patient, was 36%. On a patient-based analysis, sensitivity, specificity and positive and negative predictive values were 100%, 91%, 83% and 100%, respectively. CONCLUSIONS: The diagnostic accuracy of 64-row CTCA for ruling out the presence of significant coronary stenoses in patients undergoing valve surgery is excellent and allows CTCA to be used as a gatekeeper for invasive CCA in these patients. MDCT is a necessary preoperative examination that provides useful information for identifying potential operative complications of surgical procedures.
PURPOSE: The aim of our study was to evaluate the role of multidetector-row computed tomography (MDCT) in patients referred for heart valve surgery. We studied the diagnostic performance of CT coronary angiography (CTCA) compared with conventional coronary angiography (CCA) before valve surgery. MATERIALS AND METHODS: During a 13-month period, 55 consecutive patients under evaluation for aortic (40/55) or mitral valve (15/55) disease before potential valve replacement underwent CTCA using a 64-detector-row scanner within 2 months of CCA for comparative purposes. All 17 major coronary artery segments were evaluated by one observer and compared with the reference standard. Patient-based, vessel-based and segment-based analyses of the data were performed. RESULTS: Prevalence of significant coronary artery disease, defined as having at least one stenosis >/=50% per patient, was 36%. On a patient-based analysis, sensitivity, specificity and positive and negative predictive values were 100%, 91%, 83% and 100%, respectively. CONCLUSIONS: The diagnostic accuracy of 64-row CTCA for ruling out the presence of significant coronary stenoses in patients undergoing valve surgery is excellent and allows CTCA to be used as a gatekeeper for invasive CCA in these patients. MDCT is a necessary preoperative examination that provides useful information for identifying potential operative complications of surgical procedures.
Authors: R L Wolman; N A Nussmeier; A Aggarwal; M S Kanchuger; G W Roach; M F Newman; C M Mangano; K E Marschall; C Ley; D M Boisvert; G M Ozanne; A Herskowitz; S H Graham; D T Mangano Journal: Stroke Date: 1999-03 Impact factor: 7.914
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Authors: Steven J Kernis; Vuyisile T Nkomo; David Messika-Zeitoun; Bernard J Gersh; Thoralf M Sundt; Karla V Ballman; Christopher G Scott; Hartzell V Schaff; Maurice Enriquez-Sarano Journal: Circulation Date: 2004-10-11 Impact factor: 29.690
Authors: Maksymilian P Opolski; Won-Keun Kim; Christoph Liebetrau; Claudia Walther; Johannes Blumenstein; Luise Gaede; Jörg Kempfert; Arnaud Van Linden; Thomas Walther; Christian W Hamm; Helge Möllmann Journal: Clin Res Cardiol Date: 2015-01-06 Impact factor: 5.460
Authors: Young Jin Kim; Hwan Seok Yong; Sung Mok Kim; Jeong A Kim; Dong Hyun Yang; Yoo Jin Hong Journal: Korean J Radiol Date: 2015-02-27 Impact factor: 3.500