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open access

Vol 3, No 1 (2001)
Prace poglądowe
Published online: 2002-04-25
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Value of magnetic resonance imaging in differential diagnosis of vasogenic lesions in the brain

Jerzy Kulczycki, Piotr Kozłowski, Romana Bogusławska, Renata Krawczyk
Udar Mózgu. Problemy Interdyscyplinarne 2001;3(1):29-34.

open access

Vol 3, No 1 (2001)
Prace poglądowe
Published online: 2002-04-25

Abstract

MR tomography has, in relation to computed tomography (CT), a number of advantages in the diagnosis of ischaemic brain lesions: enables their earlier detection, visualizes even small foci (1-2 mm in diameter) and presents their actual image even if they are situated in lower structures. However being a nonspecific method of high sensivity it reveals often images of various foci difficult for interpretation. This is true particularly of T2-weighted images in which ischaemic foci may be very similar to demyelinating or inflammatory lesions. For naming these lesions, so difficult for diagnosing the term Unidentified Bright Objects (UBO) has been frequently used.
A group of small lesions associated with vessels and hyperintense in T2-weighted images is not homogeneous, including lacunar infarcts as well as dilated Virchow-Robin spaces. Their recognition in MRI is based on shape differences and, in some degree, their different localization.
In UBO differentiation the foci of central myelinolysis of brain stem should be considered. During regression they can resemble ischaemic lesions.

Abstract

MR tomography has, in relation to computed tomography (CT), a number of advantages in the diagnosis of ischaemic brain lesions: enables their earlier detection, visualizes even small foci (1-2 mm in diameter) and presents their actual image even if they are situated in lower structures. However being a nonspecific method of high sensivity it reveals often images of various foci difficult for interpretation. This is true particularly of T2-weighted images in which ischaemic foci may be very similar to demyelinating or inflammatory lesions. For naming these lesions, so difficult for diagnosing the term Unidentified Bright Objects (UBO) has been frequently used.
A group of small lesions associated with vessels and hyperintense in T2-weighted images is not homogeneous, including lacunar infarcts as well as dilated Virchow-Robin spaces. Their recognition in MRI is based on shape differences and, in some degree, their different localization.
In UBO differentiation the foci of central myelinolysis of brain stem should be considered. During regression they can resemble ischaemic lesions.
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Keywords

brain; vasogenic lesions; magnetic resonance imaging (MRI)

About this article
Title

Value of magnetic resonance imaging in differential diagnosis of vasogenic lesions in the brain

Journal

Interdisciplinary Problems of Stroke

Issue

Vol 3, No 1 (2001)

Pages

29-34

Published online

2002-04-25

Bibliographic record

Udar Mózgu. Problemy Interdyscyplinarne 2001;3(1):29-34.

Keywords

brain
vasogenic lesions
magnetic resonance imaging (MRI)

Authors

Jerzy Kulczycki
Piotr Kozłowski
Romana Bogusławska
Renata Krawczyk

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