BioMed Research International / 2014 / Article / Tab 2

Clinical Study

The Diagnostic Value of Cervical Lymph Node Metastasis in Head and Neck Squamous Carcinoma by Using Diffusion-Weighted Magnetic Resonance Imaging and Computed Tomography Perfusion

Table 2

Accuracy of diffusion-weighted imaging (DWI) and perfusion CT (CTP).

SensitivitySpecificityPPVNPVAccuracyAUC

DWI43/48 (89.58%)13/17 (76.47%)43/47 (91.49%)13/18 (72.22%)56/65 (86.15%)0.830
CTP33/48 (68.75%)9/17 (52.94%)33/41 (80.48%)9/24 (37.50%)42/65 (64.61%)0.605

, .
PPV = positive predictive value, NPV = negative predictive value, and AUC = area under the ROC curve.