Single-Breathhold Four-Dimensional Assessment of Left Ventricular Morphological and Functional Parameters by Magnetic Resonance Imaging Using the VAST Technique

Table 2: Comparison Between the Quantitative Assessment of LV Volumes, Mass and Function by the 2D and the 3D Cine-MR Techniques

Mean Difference Between Both Observers (Bias)				Coefficient of Repeatability
Parameter	2D	3D	P^*	2D	3D	P^**
LV EDV (ml)	0.5	8.3	0.06	± 24.0	± 17.1	0.32
LV ESV (ml)	0.2	6.6	0.05	± 20.0	± 9.0	0.03
LV SV (ml)	0.6	0	0.88	± 21.4	± 27.1	0.49
LV EF (%)	1.5	-2.4	0.05	± 10.5	± 8.9	0.65
LV mass (g)	13.8	14.6	0.85	± 27.6	± 12.7	0.03

^* P value of the Student’s t test for the 2D versus the 3D mean differences (bias)

^** P value of the two-sample variance-comparison test for the 2D versus 3D repeatability coefficients

LV denotes left ventricular; 2D, two-dimensional; 3D, three-dimensional; EDV, end-diastolic volume; ESV, end-systolic volume; SV, systolic volume; and EF, ejection fraction.