Pseudo-Leptomeningeal Contrast Enhancement at 3T in Pediatric Patients Sedated by Propofol.

Alexander M McKinney A Chacko Achanaril B Knoll David R Nascene Rakhee S Gawande

Published in: AJNR. American journal of neuroradiology (2018)

Leptomeningeal contrast enhancement (or "pseudo"-leptomeningeal contrast enhancement) occurs with a greater frequency and degree on 3T postcontrast spin-echo T1WI relative to gradient-echo TIWI in younger children sedated with propofol and should not be mistaken for disease. This phenomenon may be more prominent with lower age or size and may arise from propofol-induced vascular smooth-muscle dilation.

Keyphrases

small cell lung cancer
brain metastases
magnetic resonance
smooth muscle
contrast enhanced
cerebrospinal fluid
diffusion weighted
magnetic resonance imaging
diffusion weighted imaging
young adults
computed tomography
diabetic rats
room temperature
single molecule