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Table 2 3 months post-ablation threshold levels selected by expert observers

From: Rapid automatic segmentation of abnormal tissue in late gadolinium enhancement cardiovascular magnetic resonance images for improved management of long-standing persistent atrial fibrillation

 

Observer 1

Observer 2

Observer 3

Patient 1

1 5/8

1 5/8

1 5/8

Patient 2

1 5/8

1 5/8

1 5/8

Patient 3

1 4/8

1 5/8

1 4/8

Patient 4

1 5/8

1 5/8

1 5/8

Patient 5

1 6/8

1 5/8

1 5/8

Patient 6

1 5/8

1 5/8

1 5/8

Patient 7

1 5/8

1 5/8

1 5/8

Patient 8

1 5/8

1 5/8

1 5/8

Patient 9

1 5/8

1 6/8

1 6/8

Patient 10

1 5/8

1 5/8

1 5/8

  1. The normalized intensity levels that were selected by the expert observers to mark out the lower boundary of enhanced tissue in the training (N = 10) 3 months post-ablation LGE CMR data-sets. Possible threshold levels ranged from 1 to 6 in increments of 1/8
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