Table 2:

Predictive ability of ADC criteria for salivary gland tumors

Diagnostic AbilityCutoff Points of Percentage Area Having High ADCs for the Diagnosis of Malignant Tumors
Sensitivity (%)56898989
Specificity (%)1001007359
Accuracy (%)87977768
PPV (%)100100100100
NPV (%)85967057
  • 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).