RT Journal Article SR Electronic T1 MR angiographic demonstration of an intracranial aneurysm not seen on conventional angiography. JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 971 OP 973 VO 14 IS 4 A1 J T Curnes A1 M E Shogry A1 D C Clark A1 H J Elsner YR 1993 UL http://www.ajnr.org/content/14/4/971.abstract AB A patient with documented subarachnoid hemorrhage underwent conventional angiography, which was negative. MR angiography performed immediately after the conventional angiogram demonstrated a 4-mm anterior communicating artery aneurysm. This finding was confirmed 1 week later with repeat angiography, and the aneurysm was clipped surgically.