TY - JOUR T1 - A pitfall in detection of intracranial unruptured aneurysms on three-dimensional phase-contrast MR angiography. JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 1618 LP - 1623 VL - 15 IS - 9 AU - Y Araki AU - E Kohmura AU - I Tsukaguchi Y1 - 1994/10/01 UR - http://www.ajnr.org/content/15/9/1618.abstract N2 - We report three cases of intracranial unruptured aneurysm evaluated with MR angiography using both three-dimensional time-of-flight and three-dimensional phase-contrast techniques. It has been said that the phase-contrast technique has advantages over the time-of-flight technique in the detection of intracranial aneurysms. However, in our three cases, three-dimensional time-of-flight MR angiography clearly showed the intracranial unruptured aneurysms, but three-dimensional phase-contrast MR angiography failed to show them. ER -