Skip to main content

Table 2 Dice Similarity Coefficients (DSC) reported as mean ± SD before and after teaching between the complete beginners (B1, B2) and the intermediate beginner (IB) vs. the expert observer (E1)

From: The effect of initial teaching on evaluation of left ventricular volumes by cardiovascular magnetic resonance imaging: comparison between complete and intermediate beginners and experienced observers

 

DSC B1

DSC B2

DSC IB

 

Before

After

Before

After

Before

After

End-diastole endocardium

0.83 ± 0.08

0.93 ± 0.07***

0.84 ± 0.10

0.93 ± 0.08***

0.94 ± 0.08

0.95 ± 0.06ns

End-systole endocardium

0.70 ± 0.13

0.90 ± 0.08***

0.68 ± 0.17

0.84 ± 0.15***

0.90 ± 0.09

0.92 ± 0.06ns

End-diastole epicardium

0.93 ± 0.07

0.92 ± 0.10ns

0.92 ± 0.12

0.92 ± 0.12ns

0.94 ± 0.11

0.94 ± 0.12ns

End-systole epicardium

0.90 ± 0.12

0.91 ± 0.11ns

0.89 ± 0.15

0.88 ± 0.15ns

0.92 ± 0.15

0.93 ± 0.09**

Basal end-diastole endocardium

0.88 ± 0.06

0.94 ± 0.03***

0.90 ± 0.05

0.95 ± 0.03***

0.95 ± 0.04

0.96 ± 0.03ns

Midventricular end-diastole endocardium

0.80 ± 0.06

0.95 ± 0.02***

0.84 ± 0.06

0.96 ± 0.02***

0.96 ± 0.02

0.97 ± 0.01ns

Apical end-diastole endocardium

0.81 ± 0.09

0.88 ± 0.11***

0.77 ± 0.14

0.87 ± 0.12***

0.89 ± 0.15

0.91 ± 0.09ns

Basal end-diastole epicardium

0.93 ± 0.08

0.91 ± 0.14ns

0.91 ± 0.17

0.94 ± 0.11ns

0.96 ± 0.03

0.95 ± 0.11ns

Midventricular end-diastole epicardium

0.96 ± 0.03

0.96 ± 0.02ns

0.96 ± 0.02

0.96 ± 0.02ns

0.97 ± 0.01

0.97 ± 0.01ns

Apical end-diastole epicardium

0.90 ± 0.08

0.88 ± 0.09ns

0.89 ± 0.11

0.84 ± 0.17ns

0.87 ± 0.19

0.89 ± 0.16ns

Basal end-systole endocardium

0.76 ± 0.12

0.91 ± 0.05***

0.78 ± 0.13

0.90 ± 0.06***

0.94 ± 0.03

0.94 ± 0.03ns

Midventricular end-systole endocardium

0.64 ± 0.12

0.92 ± 0.03***

0.62 ± 0.14

0.85 ± 0.10***

0.92 ± 0.04

0.94 ± 0.03**

Apical end-systole endocardium

0.66 ± 0.13

0.86 ± 0.11***

0.61 ± 0.19

0.76 ± 0.21***

0.84 ± 0.15

0.88 ± 0.09ns

Basal end-systole epicardium

0.89 ± 0.16

0.92 ± 0.12*

0.88 ± 0.21

0.88 ± 0.21ns

0.94 ± 0.13

0.94 ± 0.08ns

Midventricular end-systole epicardium

0.95 ± 0.02

0.95 ± 0.03ns

0.94 ± 0.02

0.94 ± 0.03ns

0.97 ± 0.02

0.96 ± 0.01***

Apical end-systole epicardium

0.87 ± 0.11

0.87 ± 0.11ns

0.86 ± 0.11

0.85 ± 0.11ns

0.85 ± 0.21

0.90 ± 0.12ns

  1. For a perfect match in delineations DSC = 1 whereas 0 indicates no overlap in delineations. Basal, midventricular and apical denote slices comprising one third of the longitudinal left ventricle for end-diastole and end-systole, respectively. nsnon-significant, *p < 0.05, **p < 0.01, ***p < 0.001 after teaching vs. before teaching