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Table 2 Performance metrics of the machine learning algorithms

From: Radiomic signatures from T2W and DWI MRI are predictive of tumour hypoxia in colorectal liver metastases

 

ROC AUC

PR AUC

Accuracy

Sensitivity

Specificity

NPV

PPV

F1 score

p value

TE75

0.64 (0.42–0.82)

0.63 (0.40–0.83)

0.62 (0.45–0.79)

0.80 (0.57–1.00)

0.43 (0.15–0.71)

0.67 (0.30–1.00)

0.60 (0.37–0.80)

0.69 (0.48–0.83)

0.092

TE300

0.57 (0.33–0.78)

0.52 (0.28–0.70)

0.42 (0.23–0.62)

0.30 (0.08–0.58)

0.54 (0.27–0.80)

0.44 (0.18–0.69)

0.40 (0.10–0.73)

0.33 (0.10–0.56)

0.312

b0

0.66 (0.46–0.84)

0.73 (0.48–0.89)

0.55 (0.39–0.71)

0.81 (0.60–1.00)

0.26 (0.07–0.50)

0.60 (0.17–1.00)

0.54 (0.35–0.74)

0.65 (0.44–0.81)

0.069

b10

0.53 (0.33–0.74)

0.58 (0.37–0.79)

0.49 (0.31–0.66)

0.68 (0.47–0.89)

0.24 (0.06–0.47)

0.40 (0.09–0.71)

0.52 (0.32–0.71)

0.59 (0.40–0.75)

0.415

b200

0.79 (0.61–0.93)

0.72 (0.51–0.91)

0.68 (0.52–0.84)

0.56 (0.31–0.81)

0.81 (0.57–1.00)

0.63 (0.41–0.84)

0.75 (0.50–1.00)

0.64 (0.40–0.82)

0.002

b800

0.64 (0.44–0.82)

0.74 (0.55–0.88)

0.56 (0.42–0.72)

0.64 (0.40–0.83)

0.47 (0.23–0.71)

0.53 (0.27–0.79)

0.57 (0.37–0.77)

0.59 (0.40–0.76)

0.071

ADC

0.72 (0.50–0.90)

0.75 (0.54–0.94)

0.68 (0.53–0.82)

0.80 (0.60–0.95)

0.54 (0.27–0.78)

0.69 (0.36–0.91)

0.68 (0.50–0.87)

0.74 (0.56–0.87)

0.019