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Diffusion-weighted Imaging and Apparent Diffusion Coefficient Maps for the Evaluation of Pyogenic Ventriculitis  

Kim, Hyeong-Seok (Department of Neurosurgery, St. Vincent Hospital, The Catholic University of Korea)
Hong, Jae-Taek (Department of Neurosurgery, St. Vincent Hospital, The Catholic University of Korea)
Lee, Sang-Won (Department of Neurosurgery, St. Vincent Hospital, The Catholic University of Korea)
Son, Byung-Chul (Department of Neurosurgery, St. Vincent Hospital, The Catholic University of Korea)
Sung, Jae-Hoon (Department of Neurosurgery, St. Vincent Hospital, The Catholic University of Korea)
Kim, Moon-Chan (Department of Neurosurgery, Kangnam St. Marys' Hospital, The Catholic University of Korea)
Publication Information
Journal of Korean Neurosurgical Society / v.38, no.1, 2005 , pp. 23-27 More about this Journal
Abstract
Objective : The aim of this study is to assess the significance of an apparent diffusion coefficient[ADC] study for diagnosis of ventriculitis. Methods : Seven patients with ventriculitis were enrolled in this study. Diffusion-weighted[DW] magnetic resonance images[MRI] and ADC maps in the dependent intraventricular collection, periventricular white matter and non-dependent cerebrospinal fluid[CSF] were obtained. The images and ADC data from the different lesions were compared. Results : The DW MRI showed marked hyperintensity in the purulent pus lesion, and the corresponding ADC maps revealed prominent hypointensity and restricted ADC values compared with the non-dependent CSF and normal white matter. Conclusion : The decreased ADC value and increased signal intensity of the dependent intraventricular fluid on the DW MRI show restricted water diffusion in the purulent fluid, which is indicative of a pyogenic ventriculitis diagnosis.
Keywords
Pyogenic ventriculitis; Magnetic resonance imaging; Diffusion weighted imaging; Apparent diffusion coefficient;
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