Research Article

Presurgical Identification of Uterine Smooth Muscle Malignancies through the Characteristic FDG Uptake Pattern on PET Scans

Table 3

Comparison of PET imaging parameters and FDG uptake pattern in distinguishing between LMS/STUMP and benign leiomyomas.

TPTNFPFNN/AAccuracy (%)Sensitivity (%)Specificity (%)PPV (%)NPV (%)

SUVmax6103207675776783
Metabolic tumor/necrosis ratio68007100100100100100
“Hollow ball” sign813000100100100100100

, McNemar’s test versus “hollow-ball” sign; LMS, leiomyosarcoma; STUMP, smooth muscle tumor with uncertain malignant potential; TP, true-positive; TN, true-negative; FP, false-positive; FN, false-negative; N/A, not available; PPV, positive predictive value; NPV, negative predictive value.