PT - JOURNAL ARTICLE AU - Ansaar T. Rai AU - Jeffery P. Hogg TI - Persistence of Gadolinium in CSF: A Diagnostic Pitfall in Patients with End-stage Renal Disease DP - 2001 Aug 01 TA - American Journal of Neuroradiology PG - 1357--1361 VI - 22 IP - 7 4099 - http://www.ajnr.org/content/22/7/1357.short 4100 - http://www.ajnr.org/content/22/7/1357.full SO - Am. J. Neuroradiol.2001 Aug 01; 22 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.