RT Journal Article
SR Electronic
T1 Blood Flow Mimicking Aneurysmal Wall Enhancement: A Diagnostic Pitfall of Vessel Wall MRI Using the Postcontrast 3D Turbo Spin-Echo MR Imaging Sequence
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 1065
OP 1067
DO 10.3174/ajnr.A5616
VO 39
IS 6
A1 Kalsoum, E.
A1 Chabernaud Negrier, A.
A1 Tuilier, T.
A1 Benaïssa, A.
A1 Blanc, R.
A1 Gallas, S.
A1 Lefaucheur, J.-P.
A1 Gaston, A.
A1 Lopes, R.
A1 Brugières, P.
A1 Hodel, J.
YR 2018
UL http://www.ajnr.org/content/39/6/1065.abstract
AB SUMMARY: Our aim was to compare the detectability of aneurysmal wall enhancement in unruptured intracranial aneurysms between conventional and motion-sensitized driven equilibrium–prepared postcontrast 3D T1-weighted TSE sequences (sampling perfection with applicationoptimized contrasts by using different flip angle evolution, SPACE). Twenty-two patients with 30 unruptured intracranial aneurysms were scanned at 3T. Aneurysmal wall enhancement was more significantly detected using conventional compared with motion-sensitized driven equilibrium–prepared SPACE sequences (10/30 versus 2/30, P < .0001). Contrast-to-noise ratio measurements did not differ between conventional and motion-sensitized driven equilibrium–prepared sequences (P = .51). Flowing blood can mimic aneurysmal wall enhancement using conventional SPACE sequences with potential implications for patient care.AWEaneurysmal wall enhancementCNRcontrast-to-noise ratioMSDEmotion-sensitized driven equilibriumSPACEsampling perfection with application-optimized contrasts by using different flip angle evolutionUIAunruptured intracranial aneurysm