Diffusion-weighted MR imaging of pyogenic ventriculitis.
OBJECTIVE
The purpose of this study was to describe the features of pyogenic ventriculitis (ventricular empyema, pyocephalus) on diffusion-weighted MR imaging.


CONCLUSIONS
Markedly increased signal intensity of dependent intraventricular fluid on diffusion-weighted MR imaging and an apparent diffusion coefficient that is less than that of normal cerebral white matter indicate restricted water diffusion in purulent fluid and suggest the diagnosis of pyogenic ventriculitis.
Pezzullo
John A
JA
Department of Diagnostic Imaging, Brown University School of Medicine, Rhode Island Hospital, 593 Eddy St., Providence, RI 02903, USA.
Tung
Glenn A
GA
Mudigonda
Sanjay
S
Rogg
Jeffrey M
JM
D000328:Adult; D001921:Brain / Q000473:pathology; D002552:Cerebral Ventricles / Q000473:pathology; D038524:Diffusion Magnetic Resonance Imaging; D004653:Empyema / Q000175:diagnosis; D004660:Encephalitis / Q000175:diagnosis*; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged