Table 3.

Mitral regurgitation quantitative parameters

		All patients (54)	MR grade 1 + /2 + (12)	MR grade 3 + (12)	MR grade 4 + (30)
CMR parameters
LV-SV, ml		136 ± 39	103 ± 23@	117 ± 23@	156 ± 37
RVol, ml		57 ± 33	22 ± 16@#	37 ± 11@	80 ± 26
RF, %		41 ± 17	22 ± 14@#	33 ± 7@	52 ± 11
2D-TTE parameters
LV-SV, ml		117 ± 44	83 ± 26@	96 ± 30@	139 ± 41
Vena contracta, mm		0.62 ± 0.21	0.30 ± 0.15@#	0.60 ± 0.09@	0.76 ± 0.09
E wave, m/s		1.36 ± 0.37	0.95 ± 0.16@#	1.23 ± 0.16@	1.58 ± 0.31
EROA, cm2 **		0.50 ± 0.28	0.18 ± 0.14@#	0.36 ± 0.09@	0.68 ± 0.22
RVol, ml **		73 ± 39	22 ± 16@#	54 ± 8@	101 ± 26
RF, % **		47 ± 18	21 ± 11@#	40 ± 4@	59 ± 9
3D-PISA parameters
EROA, cm2 ***		0.54 ± 0.34	0.21 ± 0.17@#	0.43 ± 0.19@	0.72 ± 0.32
RVol, ml ***		79 ± 45	27 ± 19@#	65 ± 28@	105 ± 37
RF, % ***		48 ± 18	23 ± 13@#	44 ± 8@	60 ± 11
PW Doppler parameters
MV-SV, ml		140 ± 41	100 ± 25@#	124 ± 16@	163 ± 38
RVol, ml		69 ± 42	23 ± 18@#	48 ± 13@	96 ± 36
RF, %		46 ± 18	21 ± 13@#	38 ± 7@	58 ± 11

Other abbreviations as in Table 2. Values ​​are expressed as mean ± SD. ** 2D-PISA and *** 3D-PISA derived parameters. Differences reached statistical significance with: # group “MR grade 3 + ” and @ group “MR grade 4 + ”

SV stroke volume, RVol regurgitant volume (MR), RF regurgitant fraction (MR), 2D two-dimensional, 3D-PISA real-time three-dimensional full volume color-flow Doppler derived PISA (Proximal Isovelocity Surface Area), PW pulse-wave, EROA effective regurgitant orifice area, MV mitral valve