Table 1 Patient split of training, validation, and test sets on NCCN risk groups.

From: Mask R-CNN assisted 2.5D object detection pipeline of 68Ga-PSMA-11 PET/CT-positive metastatic pelvic lymph node after radical prostatectomy from solely CT imaging

Risk group

Training

Validation

Test

Metastatic

31

8

9

High

13

5

6

Intermidate

7

4

2

Unknown

1

1

1

In total

52

18

18

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