TABLE 5.

Model Predicting the Likelihood That IBLs Identified on 18F-DCFPyL PET/CT at 2 Hour of Uptake Are Benign or Malignant (n = 79)

Other PSMA-avid bone findingsIBL locationIBL SUVmaxLikelihood of interpretationInterpretation accuracy
No bone metastasesTypical<581.0% benignTrue positive (n = 17); false negative (n = 4)
No bone metastasesTypical≥594.7% malignantTrue positive (n = 18); false positive (n = 1)
No bone metastasesAtypical<594.4% benignTrue negative (n = 17); false negative (n = 1)
No bone metastasesAtypical≥5100% malignantTrue positive (n = 8)
Bone metastasesAny<577.8% malignantTrue positive (n = 7); false positive (n = 2)
Bone metastasesAny≥5100% malignantTrue positive (n = 4)