OBJECTIVE: To evaluate the accuracy and variability of right ventricular (RV) volumes and mass using dual-source computed tomography (DSCT) and the influence of slice orientation in comparison to cardiac magnetic resonance imaging (CMR). METHODS: In 33 patients undergoing cardiac DSCT and CMR, RV parameters were calculated using the short-axis (DSCT, CMR) and axial orientation (DSCT). Intra- and interobserver variability were assessed by Bland-Altman analysis. RESULTS: Short-axis orientation: RV parameters of the two techniques were not statistically different. Axial orientation: RV volumes and mass were significantly overestimated compared with short-axis parameters whereas EF was similar. The short-axis approach resulted in low variability, although the axial orientation had the least amount of intra- and interobserver variability. CONCLUSION: RV parameters can be more accurately assessed by DSCT compared with CMR using short-axis slice orientation. RV volumes and mass are significantly higher using axial compared with short-axis slices, whereas EF is unaffected. RV parameters derived from both approaches yield high reproducibility.
OBJECTIVE: To evaluate the accuracy and variability of right ventricular (RV) volumes and mass using dual-source computed tomography (DSCT) and the influence of slice orientation in comparison to cardiac magnetic resonance imaging (CMR). METHODS: In 33 patients undergoing cardiac DSCT and CMR, RV parameters were calculated using the short-axis (DSCT, CMR) and axial orientation (DSCT). Intra- and interobserver variability were assessed by Bland-Altman analysis. RESULTS: Short-axis orientation: RV parameters of the two techniques were not statistically different. Axial orientation: RV volumes and mass were significantly overestimated compared with short-axis parameters whereas EF was similar. The short-axis approach resulted in low variability, although the axial orientation had the least amount of intra- and interobserver variability. CONCLUSION: RV parameters can be more accurately assessed by DSCT compared with CMR using short-axis slice orientation. RV volumes and mass are significantly higher using axial compared with short-axis slices, whereas EF is unaffected. RV parameters derived from both approaches yield high reproducibility.
Authors: Teresa Moroseos; Lee Mitsumori; William S Kerwin; David J Sahn; Willem A Helbing; Philip J Kilner; Alan Shurman; Harold Litt; Florence H Sheehan Journal: Am J Cardiol Date: 2010-04-21 Impact factor: 2.778
Authors: Carsten Rist; T R Johnson; A Becker; A W Leber; A Huber; S Busch; C R Becker; M F Reiser; K Nikolaou Journal: Radiologe Date: 2007-04 Impact factor: 0.635
Authors: Andreas H Mahnken; Philipp Bruners; Bernhard Schmidt; Christoph Bornikoel; Thomas Flohr; Rolf W Günther Journal: Invest Radiol Date: 2009-07 Impact factor: 6.016
Authors: G J de Jonge; P A van der Vleuten; J Overbosch; D D Lubbers; M C Jansen-van der Weide; F Zijlstra; P M A van Ooijen; M Oudkerk Journal: Eur J Radiol Date: 2010-11-26 Impact factor: 3.528