Table 1.

Peak radial velocities and time-to-peak values in the younger and older age groups

LV level and myocardial layer		23 ± 3 years	66 ± 7 years	p value	23 ± 3 years	66 ± 7 years	p value
		Peak systolic radial velocity (cm/s)			Time-to-peak values (% of ES)
LV base	Epicardial	3.0 ± 0.2	3.1 ± 0.2	0.90	40.7 ± 1.6	42.7 ± 2.6	0.51
	Transmural	3.5 ± 0.2	3.5 ± 0.2	0.91	39.7 ± 1.2	42.6 ± 2.6	0.39
	Endocardial	4.0 ± 0.2	4.0 ± 0.2	0.96	39.6 ± 1.2	43.6 ± 2.6	0.28
Mid-ventricle	Epicardial	3.2 ± 0.1	3.2 ± 0.3	0.98	38.9 ± 1.3	39.7 ± 1.4	0.70
	Transmural	3.7 ± 0.1	3.5 ± 0.3	0.68	39.7 ± 2.4	42.7 ± 2.1	0.39
	Endocardial	4.2 ± 0.1	4.0 ± 0.3	0.41	39.7 ± 1.7	44.7 ± 1.5	0.13
LV apex	Epicardial	2.6 ± 0.2	3.2 ± 0.2	0.02	37.7 ± 1.9	38.6 ± 1.9	0.77
	Transmural	3.1 ± 0.2	3.5 ± 0.2	0.13	38.7 ± 1.4	39.1 ± 1.7	0.85
	Endocardial	3.6 ± 0.2	3.8 ± 0.2	0.55	38.5 ± 0.9	40.1 ± 1.4	0.36
		Peak diastolic radial velocity (cm/s)			Time-to-peak values (% of ED)
LV base	Epicardial	−4.5 ± 0.3	−4.4 ± 0.4	0.96	15.6 ± 1.5	19.1 ± 1.8	0.16
	Transmural	−5.5 ± 0.3	−5.5 ± 0.4	0.91	15.7 ± 1.5	18.8 ± 1.9	0.22
	Endocardial	−6.6 ± 0.4	−6.6 ± 0.5	0.88	15.6 ± 1.5	18.8 ± 1.7	0.19
Mid-ventricle	Epicardial	−4.6 ± 0.2	−4.3 ± 0.2	0.41	19.8 ± 1.0	23.2 ± 1.2	0.06
	Transmural	−5.6 ± 0.3	−5.2 ± 0.2	0.29	19.0 ± 1.1	23.5 ± 1.1	0.02
	Endocardial	−6.6 ± 0.3	−6.1 ± 0.3	0.17	18.8 ± 1.1	23.5 ± 1.1	0.01
LV apex	Epicardial	−4.9 ± 0.3	−4.2 ± 0.3	0.14	19.3 ± 1.7	27.4 ± 1.4	<0.01
	Transmural	−5.8 ± 0.4	−4.7 ± 0.3	0.04	19.0 ± 1.6	27.4 ± 1.4	<0.01
	Endocardial	−6.9 ± 0.5	−5.2 ± 0.4	0.01	19.0 ± 1.6	27.4 ± 1.4	<0.01

All values are presented as mean ± SEM