NDLI: Evaluation of ventriculomegaly using diffusion tensor imaging: correlations with chronic hydrocephalus and atrophy.

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Year: 2010 Volume: 112 Issue: 3

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Evaluation of ventriculomegaly using diffusion tensor imaging: correlations with chronic hydrocephalus and atrophy.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Osuka, Satoru Matsushita, Akira Yamamoto, Tetsuya Saotome, Kousaku Isobe, Tomonori Nagatomo, Yasushi Masumoto, Tomohiko Komatsu, Yoji Ishikawa, Eiichi Matsumura, Akira
Description	Country affiliation: Japan Author Affiliation: Osuka S ( Department of Neurosurgery, University of Tsukuba, Tsukuba, Japan.)
Abstract	OBJECT: Ventriculomegaly is a common imaging finding in many types of conditions. It is difficult to determine whether it is related to true hydrocephalus or to an atrophic process by using only imaging procedures such as MR imaging after traumatic injury, stroke, or infectious disease. Diffusion tensor (DT) imaging can distinguish the compression characteristics of white matter, indicating that increased diffusion anisotropy may be related to white matter compression. In this preliminary study, the authors compared the DT imaging findings of ventriculomegaly with those of chronic hydrocephalus or atrophy to clarify the potential of diffusion anisotropy in the identification of hydrocephalus. METHODS: Ten patients with chronic hydrocephalus, 8 patients with atrophy (defined by conventional devices and surgical outcome), and 14 healthy volunteers underwent DT imaging. Images were acquired before and after shunting or once in cases without shunting. The fractional anisotropy (FA) values at many points around the lateral ventricle were evaluated. RESULTS: The FA patterns around the lateral ventricle in the chronic hydrocephalus and atrophy groups were different. Especially in the caudate nucleus, FA was increased in the chronic hydrocephalus group compared with the atrophy group. Furthermore, the FA values returned to normal levels after shunt placement. CONCLUSIONS: Assessment of the FA value of the caudate nucleus may be an important, less invasive method for distinguishing true hydrocephalus from ventriculomegaly. Further research in a large number of patients is needed to verify the diagnostic ability of this method.
File Format	HTM / HTML
ISSN	00223085
e-ISSN	19330693
Journal	Journal of Neurosurgery
Issue Number	4
Volume Number	112
Language	English
Publisher	American Association of Neurological Surgeons
Publisher Date	2010-04-01
Publisher Place	United States
Access Restriction	Open
Subject Keyword	Discipline Neurosurgery Brain Diseases Pathology Caudate Nucleus Diffusion Tensor Imaging Hydrocephalus Lateral Ventricles Atrophy Cerebrospinal Fluid Shunts Chronic Disease Diagnosis, Differential Surgery Controlled Clinical Trial Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Neurology (clinical) Surgery

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