Table 4.

Sample size calculations for global torsion as determined by the three different definitions to detect a relative change in 10, 15 or 20 % of mean (Exam A and B) torsion and torsion rate, respectively.

		Sample size [n]
		10 %	15 %	20 %
Twist	Peak Torsion	65	29	17
	Peak Systolic Torsion Rate	114	51	29
	Peak Diastolic Torsion Rate	292	130	73
Normalized Twist	Peak Torsion	63	28	16
	Peak Systolic Torsion Rate	106	47	27
	Peak Diastolic Torsion Rate	262	117	66
CL Shear Angle	Peak Torsion	59	26	15
	Peak Systolic Torsion Rate	141	63	36
	Peak Diastolic Torsion Rate	322	143	81

CL Shear Angle, circumferential-longitudinal shear angle