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Table 3 Results of cross-validation study

From: MRI-based treatment plan simulation and adaptation for ion radiotherapy using a classification-based approach

Contrasts

Additional features

Mean absolute

  

error [HU]

TSE1, UTE2

box.sd, dist.center

92.5

TSE1, UTE2

box.sd, dist.xyz

93.5

TSE1, UTE1

box.sd, dist.center

94.1

TSE1, UTE2

box.sd, dist.center, dist.xyz

95.8

TSE1, UTE2

box.mean, box.sd, dist.center

96.5

TSE1, UTE2

box.mean, box.sd, dist.xyz

96.5

TSE1, MPRAGE, UTE2

box.sd, dist.center

96.7

TSE1, TSE2, UTE2

box.sd, dist.center

97.0

TSE1, UTE1, UTE2

none

111.7

UTE1

box.mean, box.sd, dist.xyz

100.7

TSE1, MPRAGE

box.mean, box.sd, dist.center

115.7

  1. Mean absolute errors of masked voxels for the 8 best combinations of contrasts and additional features out of 738 combinations in comparison to the best result without any additional feature as well as without TSE1 and UTE sequences. Results were obtained for reduced datasets of 32 images per sample.