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Table 2 Contour overlap validation between a single operator and geometrical model with individual parameter variation

From: Semi-automated left ventricular segmentation based on a guide point model approach for 3D cine DENSE cardiovascular magnetic resonance

 

4 Guide points

64 Model elements

Late systolic initialization

α = 0.1 × 10-3β = 0,2 × 10-3

 

Apex

Mid

Base

Apex

Mid

Base

Apex

Mid

Base

Apex

Mid

Base

Dice coefficient

0.85±

0.86±

0.86±

0.80±

0.85±

0.85±

0.89±

0.92±

0.87±

0.81±

0.88±

0.86±

0.03

0.04

0.05

0.14

0.03

0.08

0.03

0.87

0.15

0.03

0.01

0.03

Jaccard coefficient

0.74±

0.76±

0.76±

0.68±

0.73±

0.75±

0.81±

0.85±

0.79±

0.68±

0.78±

0.76±

0.04

0.07

0.08

0.17

0.05

0.11

0.05

0.02

0.21

0.04

0.02

0.05

False positive

0.05±

0.07±

0.06±

0.08±

0.09±

0.05±

0.03±

0.08±

0.04±

0.04±

0.10±

0.08±

0.04

0.04

0.03

0.01

0.05

0.03

0.03

0.02

0.02

0.04

0.08

0.02

False negative

0.22±

0.18±

0.19±

0.26±

0.19±

0.21±

0.17±

0.08±

0.18±

0.28±

0.14±

0.18±

0.05

0.10

0.09

0.19

0.09

0.10

0.06

0.03

0.21

0.06

0.07

0.06