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Left and right ventricle assessment with Cardiac CT: validation study vs. Cardiac MR.


ABSTRACT: OBJECTIVES: To compare Magnetic Resonance (MR) and Computed Tomography (CT) for the assessment of left (LV) and right (RV) ventricular functional parameters. METHODS: Seventy nine patients underwent both Cardiac CT and Cardiac MR. Images were acquired using short axis (SAX) reconstructions for CT and 2D cine b-SSFP (balanced-steady state free precession) SAX sequence for MR, and evaluated using dedicated software. RESULTS: CT and MR images showed good agreement: LV EF (Ejection Fraction) (52 ?± ?14% for CT vs. 52? ± ?14% for MR; r? =? 0.73; p ?> ?0.05); RV EF (47 ?±? 12% for CT vs. 47?±?12% for MR; r ?= ?0.74; p?>?0.05); LV EDV (End Diastolic Volume) (74? ± ?21 ml/m² for CT vs. 76? ±? 25 ml/m² for MR; r? =? 0.59; p?>?0.05); RV EDV (84? ± ?25 ml/m² for CT vs. 80 ?±? 23 ml/m² for MR; r? =? 0.58; p?>?0.05); LV ESV (End Systolic Volume)(37? ± ?19 ml/m² for CT vs. 38 ?±? 23 ml/m² for MR; r ?= ?0.76; p ?> ?0.05); RV ESV (46? ± ?21 ml/m² for CT vs. 43 ?±? 18 ml/m² for MR; r? = ?0.70; p ?>? 0.05). Intra- and inter-observer variability were good, and the performance of CT was maintained for different EF subgroups. CONCLUSIONS: Cardiac CT provides accurate and reproducible LV and RV volume parameters compared with MR, and can be considered as a reliable alternative for patients who are not suitable to undergo MR. KEY POINTS: • Cardiac-CT is able to provide Left and Right Ventricular function. • Cardiac-CT is accurate as MR for LV and RV volume assessment. • Cardiac-CT can provide accurate evaluation of coronary arteries and LV and RV function.

SUBMITTER: Maffei E 

PROVIDER: S-EPMC3321142 | BioStudies | 2012-01-01T00:00:00Z

REPOSITORIES: biostudies

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