RADIATION-INDUCED TEMPORARY EPILATION AFTER A NEURORADIOLOGICALLY GUIDED EMBOLIZATION PROCEDURE

A 34-year-old woman underwent embolization of a left paraorbital arter iovenous malformation guided with a biplane x-ray system in two sessio ns separated by 3 days. Imaging included 110 minutes of fluoroscopy an d 46 digital subtraction angiography acquisitions. Entrance skin dose rates were determined with measurements performed on a skull phantom. The maximum possible skin dose was estimated to be 6.6 Gy, which is co nsistent with the temporary epilation in the right occipital region of the skull reported by the patient approximately 5 weeks later.