THE ROLE OF MRI IN DIAGNOSIS OF CARDIAC PATHOLOGIES

Abstract

Magnetic Resonance Imaging (MRI) has changed the protocols for diagnosis of cardiac pathologies. Previously MRI was only used for spine and Brain pathologies. Now with ECG gated MRI all sorts of cardiac pathologies are scanned including valvulars, pericardial, aortic and cardiac muscular pathologies. It can better describe about anatomy of cardiovascular system, Perfusion and viability of the cardiac muscles. It can assess cardiac functions and hemodynamics of the CVS system. OBJECTIVE: Cardiac MRI is a noninvasive diagnostic tool for heart pathologies as compare with echocardiography, angiography and cardiac CT scan. DURATION: This study was conducted in the Department of Diagnostic Radiology Jinnah Hospital from 15th October to 15th December 2008. METHODS: 30 Patients clinically diagnosed for Cardiac problem were scanned after informed concent on Philips Achieva 1.5T MR system. RESULTS: Out of the 30 patients 25 were showing (Ejection fraction) cardiac functions almost equal to the EF on echocardiography, but anatomical defect or variations are better picked on MRI (10:4). On the other hand with comparison with 64 slice cardiac CT scan, the viable walls and functions were diagnosed better with MRI however cardiac CT has edge on MRI in diagnosis of coronary problems.

Key words: Ejection fraction(EF), Magnetic resonance imaging (MRI),Computed tomography(CT), Echocardiagraphy, Coronary Artery Disease(CAD)