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Figure 3 | Radiation Oncology

Figure 3

From: Assessment of the risk factors for impending fractures following radiotherapy for long bone metastases using CT scan-based virtual simulation: a retrospective study

Figure 3

ROC curve. A) Performance of the craniocaudal cortical lysis threshold. No risk of fracture if the craniocaudal cortical involvement is less than 42.5 mm. 45 mm threshold: sensitivity = 100%, specificity = 85.7%, positive predictive value = 66.7%, negative predictive value = 100%. B) Performance of the circumferential cortical involvement threshold. No risk of fracture if the circumferential cortical involvement is less than 27%. 30% threshold: sensitivity = 100%, specificity = 89%, positive predictive value = 71%, negative predictive value = 100%.

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