BACKGROUND AND PURPOSE:
Microvascular ischemic neuropathy is a common cause of third nerve palsy (TNP) in adults. Gadolinium enhancement of the intracavernous segment of the third cranial nerve (CNIII) has been previously reported in this context. Given the high spatial resolution of the 3D CISS sequence for analyzing the cavernous sinus, our objective was to evaluate the diagnostic accuracy of intracavernous third nerve changes on 3D contrast-enhanced CISS in differentiating microvascular ische…