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Journal of Korean Neurosurgical Society > Volume 38(1); 2005 > Article
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.
The aim of this study is to assess the significance of an apparent diffusion coefficient(ADC) study for diagnosis of ventriculitis.
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.
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.
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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