1naresh
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Diagnostic Ability Cutoff Points of Percentage Area Having High ADCs for the Diagnosis of Malignant Tumors <3% <5% <10% <15% Sensitivity (%) 56 89 89 89 Specificity (%) 100 100 73 59 Accuracy (%) 87 97 77 68 PPV (%) 100 100 100 100 NPV (%) 85 96 70 57
Note:—PPV indicates positive predictive value; NPV, negative predictive value.
On the ADC map image that demonstrates the maximum tumor area of a salivary gland tumor, diagnostic abilities for the diagnosis of malignant tumors were calculated after varying the cutoff point of percentage area having high ADCs (≥1.8 × 10−3 mm2/s).