BMC Medical Imaging

Table 3 Nodule detector performance

From: High precision localization of pulmonary nodules on chest CT utilizing axial slice number labels

Performance metric	10 mm distance threshold	20 mm distance threshold
Nodule confidence score ≥ 0.50
Precision	0.962	0.931
Recall	0.573	0.607
FPs/scan	0.040	0.080
Adjusted precision^a	0.943	0.862
Adjusted recall^a	0.561	0.562
Adjusted FPs/scan^a	0.060	0.160
Nodule confidence score ≥ 0.20
Precision	0.889	0.870
Recall	0.629	0.674
FPs/scan	0.140	0.180
Adjusted precision^a	0.841	0.783
Adjusted recall^a	0.596	0.607
Adjusted FPs/scan^a	0.200	0.300

^aAdjusted precision/recall/FPs counts only predictions on intended nodule as a true positive (e.g. if a calcified nodule was predicted, but the ground truth NLST label specified a ground glass nodule, this was recorded as an incorrect prediction)

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ISSN: 1471-2342

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