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Table 3 Mean and variance of mid-ventricular segmental circumferential strain (Ecc) obtained using the conventional user-assisted and deep learning (DL)-based fully-automatic methods

From: Fully-automated global and segmental strain analysis of DENSE cardiovascular magnetic resonance using deep learning for segmentation and phase unwrapping

  Segment 1 Segment 2 Segment 3 Segment 4 Segment 5 Segment 6
Mean Ecc
(user-assisted)
− 0.13 ± 0.06 − 0.12 ± 0.05 − 0.15 ± 0.07 − 0.16 ± 0.09 − 0.15 ± 0.07 − 0.15 ± 0.06
Mean Ecc
(automated DL)
− 0.13 ± 0.06 − 0.12 ± 0.06 − 0.15 ± 0.07 − 0.16 ± 0.09 − 0.16 ± 0.08 − 0.15 ± 0.06
Variance of Ecc
(user-assisted)
1E–4 ± 1E–4 6E–4 ± 8E–4 1E−3 ± 2E−3 9E−4 ± 7E−4 5E−4 ± 5E−4 8E−4 ± 1E−3
Variance of Ecc
(automated DL)
3E−4 ± 3E−4 6E−4 ± 5E−4 1E−3 ± 2E−3 1E−3 ± 1E−3 5E−4 ± 3E−4 8E−4 ± 1E−3
  1. Segment 1: anteroseptal, segment 2: inferoseptal, segment 3: inferior, segment 4: inferolateral, segment 5: anterolateral, segment 6: anterior