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Journal of Korean Neurosurgical Society 2005;38(1): 23-27. |
Diffusion-weighted Imaging and Apparent Diffusion Coefficient Maps for the Evaluation of Pyogenic Ventriculitis. |
Hyeong Seok Kim, Jae Taek Hong, Sang Won Lee, Byung Chul Son, Jae Hoon Sung, Moon Chan Kim |
1Department of Neurosurgery, St. Vincent Hospital, The Catholic University of Korea, Suwon, Korea. jatagi15@paran.com 2Department of Neurosurgery, Kangnam St. Marys' Hospital, The Catholic University of Korea, Seoul, Korea. |
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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. |
Key Words:
Pyogenic ventriculitis; Magnetic resonance imaging; Diffusion weighted imaging; Apparent diffusion coefficient |
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