Table 3.

Early and late diastolic peak values of MV vortex ring parameters of healthy controls and patients with ischemic heart disease

Parameter	Controls (N = 10)	Patients with IHD (N = 10)	P value	r (N = 20)
E vortex ring volume (mL)	23 ± 3	23 ± 4	ns	ns
A vortex ring volume (mL)	20 ± 4	23 ± 4	ns	0.66 [0.31, 0.85]
E vortex ring max vorticity (s−1)	186 ± 30	135 ± 23	<.01	0.72 [0.40, 0.88]
A vortex ring max vorticity (s−1)	167 ± 36	163 ± 27	ns	0.76 [0.48, 0.90]
E vortex ring mean vorticity (s−1)	77 ± 11	60 ± 9	<.01	0.78 [0.52, 0.91]
A vortex ring mean vorticity (s−1)	73 ± 12	74 ± 10	ns	0.79 [0.54, 0.92]
E vortex ring absolute E kin (mJ)	1.48 ± 0.80	0.87 ± 0.31	.04	0.68 [0.34, 0.86]
A vortex ring absolute E kin (mJ)	1.01 ± 0.69	1.16 ± 0.37	ns	0.88 [0.72, 0.95]
E vortex ring relative E kin (J/m3)	67 ± 25	42 ± 14	.01	0.78 [0.51, 0.91]
A vortex ring relative E kin (J/m3)	53 ± 24	56 ± 18	ns	0.86 [0.68, 0.94]
E vortex ring α (°)	82 ± 4	81 ± 4	ns	ns
A vortex ring α (°)	81 ± 6	80 ± 5	ns	ns
E vortex ring CI	0.86 ± 0.04	0.78 ± 0.08	<.01	0.52 [0.10, 0.78]
A vortex ring CI	0.75 ± 0.06	0.71 ± 0.04	ns	ns

The P value refers to unpaired t‐test, and r is the Pearson correlation coefficient (specified with its 95% confidence interval) for correlations between peak values of MV vortex ring parameters and the corresponding transmitral peak velocities.

Abbreviations: CI, circularity index; IHD, ischemic heart disease; ns, not statistically significant.