. Author manuscript; available in PMC: 2018 Nov 12.

Published in final edited form as: J Magn Reson Imaging. 2015 Jun 26;43(1):128–137. doi: 10.1002/jmri.24979

Table 3.

Inter-study reproducibility (comparison of Exam A and Exam B) for global torsion and torsion rates as determined by three different definitions.

		Mean difference ± 2SD	CoV[%]	ICC (95% CI)

Twist	Peak Torsion [°]	0.0 ± 3.9	20.3	0.91 (0.74-0.97)
	Peak Systolic Torsion Rate [° s^-1]	0.7 ± 33.1	26.9	0.84 (0.53-0.94)
	Peak Diastolic Torsion Rate [° s^-1]	1.7 ± 53.9	43.1	0.36 (0.00-0.78)
Normalized Twist	Peak Torsion [° cm^-1]	0.0 ± 0.9	19.9	0.92 (0.76-0.97)
	Peak Systolic Torsion Rate [° cm^-1 s^-1]	0.0 ± 7.7	25.9	0.84 (0.54-0.95)
	Peak Diastolic Torsion Rate [° cm^-1 s^-1]	0.3 ± 12.3	40.8	0.47 (0.00-0.82)
CL Shear Angle	Peak Torsion [°]	0.0 ± 1.7	19.0	0.90 (0.72-0.97)
	Peak Systolic Torsion Rate [° s^-1]	0.3 ± 18.7	29.0	0.82 (0.48-0.94)
	Peak Diastolic Torsion Rate [° s^-1]	0.1 ± 27.9	45.5	0.34 (0.00-0.78)

SD, standard deviation; CoV, coefficient of variation; ICC, intraclass correlation coefficient; CI, confidence interval; CL Shear Angle, circumferential-longitudinal shear angle