Assessment of left ventricular regional function in affected and carrier dogs with duchenne muscular dystrophy using speckle tracking echocardiography

Table 5 STE indices of each group

Index		Unit	Normal dogs	Carrier dogs	Affected dogs
Radial	SR	%	44.50 ± 9.63	49.58 ± 14.76	46.68 ± 12.63
	SrR_S	/sec	2.71 ± 0.41	2.82 ± 0.68	2.78 ± 0.63
	SrR_E	/sec	-3.06 ± 0.50	-2.55 ± 0.73	-2.23 ± 0.95
	E/SrR_E		-24.81 ± 5.21	-36.20 ± 8.73†	-34.24 ± 12.88
Circumferential	SC	%	-20.87 ± 3.86	-22.76 ± 5.14	-23.04 ± 5.38
	SrC_S	/sec	-2.49 ± 0.26	-2.77 ± 0.72	-3.04 ± 0.86
	SrC_E	/sec	2.84 ± 0.61	2.92 ± 0.78	2.70 ± 0.49
	E/SrC_E		27.15 ± 7.08	31.80 ± 8.92	25.50 ± 6.48

†: Significant difference compared with normal dogs by multiple comparison (P < 0.05).
SR = peak systolic radial strain; SrR_S = Peak radial strain rate during systole; SrR_E = Peak radial strain rate during early diastole; SC = Peak systolic circumferential strain; SrC_S = Peak circumferential strain rate during systole; SrC_E = Peak circumferential strain rate during early diastole.

ISSN: 1471-2261