Value of Fused ¹⁸F-Choline-PET/MRI to Evaluate Prostate Cancer Relapse in Patients Showing Biochemical Recurrence after EBRT: Preliminary Results

Figure 1

72-year-old man with biopsy-proven local PC recurrence after EBRT. T2-weighted axial image (a) demonstrates a hypointense focal area close to the midline (arrow). The ADC map (b) demonstrates that the nodular area (arrow) has significantly lower ADC values than the surrounding parenchyma. The wash-in perfusion map (c) shows a high wash-in rate (arrow). On the ¹⁸F-Choline-PET/CT axial image (d) a doubtful PET-positive focus (arrow) is appreciable, while the lesion is not detectable on CeCT axial image (e). Fused ¹⁸F-Choline-PET/MRI image (f) demonstrates precise correspondence between PET-positive focus and MRI finding (arrow).