RT Journal Article SR Electronic T1 Optimal Detection of Subtle Gadolinium Leakage in CSF with Heavily T2-Weighted Fluid-Attenuated Inversion Recovery Imaging JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1481 OP 1483 DO 10.3174/ajnr.A6145 VO 40 IS 9 A1 W.M. Freeze A1 D.N. ter Weele A1 W.M. Palm A1 R.W. van Hooren A1 E.I. Hoff A1 J.F.A. Jansen A1 H.I.L. Jacobs A1 F.R. Verhey A1 W.H. Backes YR 2019 UL http://www.ajnr.org/content/40/9/1481.abstract AB SUMMARY: Pericortical enhancement on postcontrast FLAIR images is a marker for subtle leptomeningeal blood-brain barrier leakage. We explored the optimal FLAIR sequence parameters for the detection of low gadolinium concentrations within the CSF. On the basis of phantom experiments and human in vivo data, we showed that detection of subtle pericortical enhancement can be facilitated by using a relatively long TE. Future studies should choose their FLAIR sequence parameters carefully when assessing pericortical enhancement due to subtle blood-brain barrier leakage.BBBblood-brain barrierpcpostcontrast