Table 3:

Comparing the efficacy of CapsNets and UNets in segmenting images that were not represented in the training dataa

Brain StructureCapsNet Dice (95% CI)UNet Dice (95% CI)CapsNet vs UNet (P Valueb)
Thalamus52% (46–58)16% (11–21)< .01
Hippocampus43% (38–48)10% (6–14)< .01
  • a Both models were trained to segment the right thalamus and hippocampus. Then, they were tested on segmenting the contralateral left thalamus and hippocampus.

  • b df = 114 – 1 = 113.