Table 2.

MRI-derived LV functional measurements.

	Control (n = 51)	Mitral regurgitation
		Pre-operative (n = 35)	Post-operative (n = 35)
Peak ejection rate (EDV/s)	3.13 ± 0.45	2.98 ± 0.63	2.77 ± 0.62*, §
Peak E. Dia. filling rate (EDV/s)	3.13 ± 0.45	3.04 ± 0.78	1.91 ± 0.42*, †
E/A ratio	2.10 ± 1.04	2.39 ± 1.13	1.39 ± 0.49†
Peak E. Dia. Circ. strain rate (%/s)	96 ± 30	99 ± 29	71 ± 30†, ‡
Peak E. Dia. long. strain rate (%/s)	104 ± 32	123 ± 55*	80 ± 33†
Peak E. Dia. normalized untwist rate (/cm/%Diastolic interval)	0.09 ± 0.03	0.07 ± 0.02‡	0.07 ± 0.04‡
Time to peak untwist rate (ms)	385 ± 40	390 ± 39	403 ± 70

Values are mean ± SD.

E. Dia., early diastole; MA, mitral annulus; LA, long axis; Circ., circumferential; Long., longitudinal.

*P < 0.01 vs. Control.

^†P < 0.01 vs. Pre-operative MR.

^‡P < 0.05 vs. Control.

^§P < 0.05 vs. Pre-operative MR.

Age and gender effect are adjusted.