RT Journal Article SR Electronic T1 Persistence of Gadolinium in CSF: A Diagnostic Pitfall in Patients with End-stage Renal Disease JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1357 OP 1361 VO 22 IS 7 A1 Ansaar T. Rai A1 Jeffery P. Hogg YR 2001 UL http://www.ajnr.org/content/22/7/1357.abstract AB Summary: Two dialysis-dependent patients with end-stage renal disease underwent brain and spine MR imaging a few days after having undergone gadolinium-enhanced imaging studies. Increased signal intensity in the subarachnoid space on T1-weighted and fluid-attenuated inversion recovery images was noted. Excretion of gadolinium into the CSF was proven in one case by mass spectrometry. Dialysis-dependent patients with end-stage renal disease and neurologic abnormalities often undergo contrast-enhanced MR imaging. Recognition that these patients may show increased signal intensity in the subarachnoid space because of gadolinium excretion into CSF may prevent diagnostic errors.