Functional parameters of the left ventricle: comparison of cardiac MRI and cardiac CT in a large population Parametri funzionali del ventricolo sinistro: confronto tra cardio-RM e cardio-TC in un’ampia popolazione

Purpose. The authors sought to compare magnetic resonance imaging (MRI) and computed tomography (CT) for assessing left ventricular (LV) function parameters in a large patient population. Materials and methods. The study was conducted on 181 patients who underwent cardiac MRI and cardiac CT for various indications. For MRI, we used two-dimensional cine balanced steady-state free precession (b-SSFP) sequences, and for CT we used multiphase short-axis reconstructions. Volume data sets were evaluated with dedicated software. Results were compared with a paired, two-tailed Student’s t test, Pearson’s correlation (r), and Bland-Altman analysis. Results. A high level of concordance was observed between cardiac MRI and CT. Ejection fraction (EF) was 53±14% for MRI vs. 53%±15% for CT. There was good correlation for EF (r=0.71; p>0.05) and end-systolic volume (r=0.74; p>0.05). End-diastolic volume (74±23 ml at MRI vs. 71±19 ml at CT; r=0.58; p 0,05) e per il volume tele-sistolico (VTS) (r=0,74; p>0,05). Il volume tele-diastolico (74±23 ml per RM e 71±19 ml per TC; r=0,58; p<0,05) e la massa miocardica (63±20 g per RM e 56±18 g per TC; r=0,89; p<0,01) hanno dimostrato differenze statisticamente significative anche se prive di impatto clinico. Conclusioni. Gli esami cardio-RM e cardio-TC mostrano CARDIAC RADIOLOGY CARDIORADIOLOGIA Radiol med DOI 10.1007/s11547-010-0525-0 Functional parameters of the left ventricle: comparison of cardiac MRI and cardiac CT in a large population Parametri funzionali del ventricolo sinistro: confronto tra cardio-RM e cardio-TC in un’ampia popolazione A. Palumbo • E. Maffei • C. Martini • G. Messalli • S. Seitun • R. Malago • A. Aldrovandi E. Emiliano • A. Cuttone • A. Weustink • N. Mollet • F. Cademartiri Dipartimento di Radiologia e Cardiologia, Azienda Ospedaliero-Universitaria, Parma, Italy Radiology and Cardiology Department, Erasmus Medical Centre, Rotterdam, The Netherlands Dipartimento di Radiologia, Universita degli Studi di Napoli “Federico II”, Napoli, Italy Dipartimento di Radiologia, SDN Fondazione IRCCS, Napoli, Italy Dipartimento di Radiologia, Universita di Verona, Verona, Italy Correspondence to: F. Cademartiri, Dipartimento di Radiologia e Diagnostica per Immagini, c/o Piastra Tecnica – Piano 0, Azienda Ospedaliero-Universitaria, Via Gramsci 14, 43100 Parma, Italy, Tel.: +39-0521-703516, Fax: +39-0521-704838, e-mail: filippocademartiri@hotmail.com Received: 24 April 2009 / Accepted: 7 July 2009 © Springer-Verlag 2010