Skip to main content

Table 2 Sample sizes required to detect a 10% relative change in LV torsion calculated using data in this and previous studies

From: Using a respiratory navigator significantly reduces variability when quantifying left ventricular torsion with cardiovascular magnetic resonance

Method

Sample size (n)

Experiment 1

 

 Enforced inconsistent positions

66

 Consistent positions with navigator

16

Experiment 2

 

 Breath-holds

26

 Consistent positions with navigator

15

Previous Studies

 

 CMR Tagging [3]

107

 CMR Feature Tracking [4]

81

 3D Speckle Tracking [5]

80