Table 2:

Summary of image set and nnU-Net hyperparameters used for training and test the approaches described in the study. For approach IV, D is determined from the optimal plane spacing. Phantoms simulated using 0.1% of fraction of dense compartments were excluded from the test sets.

Approach	I	II	III	IV
nnU-Net Step	Training/Testing	Training /Testing	Fine-tuning/Testing	Training/Testing
Phantoms (#) Per Fraction of Dense Comp. (0.1, 10, 20, 30, and 50%)	1,000/260 200/65	−/260 −/65	750/260 150/65	1,000/260 200/65
nnU-Net Models (#)	3	0	2	1
Volume (w×h×d)	97×256×51	97×256×51	97×256×51	97×256×D
Epochs (#)	60	-	60	60
Batch Size (#)	6	-	6	6