Comparison of left ventricular strains and torsion derived from feature tracking and DENSE CMR

Table 3 Summary of strains and torsion from feature tracking and DENSE

	Feature Tracking (Unadjusted)	Feature Tracking (Adjusted)	DENSE	p₁	p₂
Circumferential Strain (%)
Base	−21.7 ± 4.2	−19.3 ± 3.3	−15.2 ± 3.7	< 0.001*	< 0.001*
Mid	−19.5 ± 4.3	−17.5 ± 3.5	−17.2 ± 3.4	< 0.001*	0.36
Apex	−25.4 ± 7.8	−21.9 ± 5.7	−19.4 ± 3.6	< 0.001*	0.01*
Longitudinal Strain (%)
Four-Chamber	−15.4 ± 5.1	−14.1 ± 4.3	−13.8 ± 2.9	0.083	0.77
Torsion (deg/cm)	2.1 ± 1.2	–	3.5 ± 0.9	< 0.001*	–
Dyssynchrony (ms)	42 ± 22	–	16 ± 20	< 0.001*	–

Unadjusted and Adjusted indicate the feature tracking results before and after adjustment, respectively
p₁, Feature Tracking (Unadjusted) vs. DENSE; p₂, Feature Tracking (Adjusted) vs. DENSE
*Indicates statistical significance (p < 0.05)

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