Erica Maffei MD, Abstract Co-Author: Nothing to Disclose

Filippo Cademartiri MD, PhD, Abstract Co-Author: Nothing to Disclose

Sara Seitun MD, Abstract Co-Author: Nothing to Disclose

Anselmo Alessandro Palumbo MD, Abstract Co-Author: Nothing to Disclose

Teresa Arcadi MD, Abstract Co-Author: Nothing to Disclose

Chiara Martini RT, Presenter: Nothing to Disclose

Alberto Clemente MD, Abstract Co-Author: Nothing to Disclose

00030490-DMT et al, Abstract Co-Author: Nothing to Disclose

to compare Magnetic Resonance (MR) and Computed Tomography (CT) for the assessment of left ventricle (LV) functional parameters in a large population of patients.

we included 181 consecutive patients who underwent Cardiac MR (Achieva 1.5T, Philips) and Cardiac CT (Sensation 64, Siemens and Iomeron 400, Bracco) with various indications. For MR we used 2D cine b-SSFP sequences and for CT we used direct oblique multiphasic reconstructions. Datasets were evaluated with a dedicated software: Argus (version Va60C, Siemens). Results were compared with paired Student’s t Test, Pearson’s r, and Bland-Altman analysis.

we observed very high concordance and reproducibility between MR and CT. The ejection fraction was 53±14ml for MR and 53±15ml for CT. High correlation was observed for ejection fraction (r=0.71; p>0.05), end-systolic volume (r = 0.74; p>0.05), and myocardial mass (r = 0.88; p<0.01). The parameter showing the higher discrepancy was end-diastolic volume (74±23ml for MR and 71±19ml for CT; r = 0.58; p<0.05). Intra-observer and inter-observer variability did not show significant differences.

MR and CT show good concordance for the assessment of LV functional parameter. They can be used indifferently in clinical practice.

In a large population of patients CT shows very good concordance with MR concerning LV functional parameters. CT is reliable for LV assessment.

Maffei, E, Cademartiri, F, Seitun, S, Palumbo, A, Arcadi, T, Martini, C, Clemente, A, et al, 0, Functional Parameters of Left Ventricle: Comparison between Cardiac MR and Cardiac CT in a Large Population.  Radiological Society of North America 2009 Scientific Assembly and Annual Meeting, November 29 - December 4, 2009 ,Chicago IL. http://archive.rsna.org/2009/8010761.html