Komiyama M, Nishikawa M, Yasui T, Sakamoto H Reversible pontine ischemia caused by acetazolamide challenge AJNR 18: 1782-1784, 1997 Abstract 　　We report the findings in a patient with a midbasilar artery stenosis in whom reversible ischemic neurologic deficits developed during cerebral blood flow imaging with acetazolamide challenge. The potential for ischemic complications from acetazolamide challenge is discussed..