Research Article

Texture Analysis Improves the Value of Pretreatment 18F-FDG PET/CT in Predicting Interim Response of Primary Gastrointestinal Diffuse Large B-Cell Lymphoma

Table 4

ROC analysis of SUVmax, MTV, and texture features.

ParameterCutoffSensitivitySpecificityAccuracyAUC value

SUVmax18.61.000.750.830.850<0.001

MTV (cm3)49.70.900.750.800.7900.006

PET texture features
 50th percentile41390.900.700.770.7500.012
 Entropy7.130.800.800.800.800<0.001
 Volume (mm3)858240.800.800.800.805<0.001

CT texture features
 Max-frequency440.900.700.770.7830.001