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Table 4 The lesion-based diagnostic performance of AI model in testing cohort and the comparison of the AI performance among few, medium and extensive lesion groups

From: Automatic identification of suspicious bone metastatic lesions in bone scintigraphy using convolutional neural network

 

Group for number of lesions

χ2

P value

Few

Medium

Extensive

Sensitivity

58.63

64.34

89.56

163.41

 < 0.001

Specificity

89.41

85.24

62.85

108.69

 < 0.001

Accuracy

81.78

78.03

82.79

8.06

0.018

PPV

64.89

69.67

87.37

83.70

 < 0.001

NPV

86.76

82.04

67.93

49.24

 < 0.001

  1. Chi-square test was performed to compare the performance of AI model among different groups of the number of lesions. Few lesions group: 1–3 lesions per image; Medium lesions group: 4–6 lesions per image; Extensive lesions group: > 6 lesions per image
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BMC Medical Imaging

ISSN: 1471-2342

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