Diffusion tensor imaging: Concepts and applications

Journal of Magnetic Resonance Imaging - Tập 13 Số 4 - Trang 534-546 - 2001
Denis Le Bihan1, Jean‐François Mangin1, Cyril Poupon1, Chris A. Clark1, Sabina Pappatà1, Nicolas Molko2,1, Hugues Chabriat2,1
1Service Hospitalier Frédéric Joliot, CEA, 91406 Orsay, France
2Department of Neurology, Lariboisière Hospital, 75010 Paris, France

Tóm tắt

AbstractThe success of diffusion magnetic resonance imaging (MRI) is deeply rooted in the powerful concept that during their random, diffusion‐driven displacements molecules probe tissue structure at a microscopic scale well beyond the usual image resolution. As diffusion is truly a three‐dimensional process, molecular mobility in tissues may be anisotropic, as in brain white matter. With diffusion tensor imaging (DTI), diffusion anisotropy effects can be fully extracted, characterized, and exploited, providing even more exquisite details on tissue microstructure. The most advanced application is certainly that of fiber tracking in the brain, which, in combination with functional MRI, might open a window on the important issue of connectivity. DTI has also been used to demonstrate subtle abnormalities in a variety of diseases (including stroke, multiple sclerosis, dyslexia, and schizophrenia) and is currently becoming part of many routine clinical protocols. The aim of this article is to review the concepts behind DTI and to present potential applications. J. Magn. Reson. Imaging 2001;13:534–546. © 2001 Wiley‐Liss, Inc.

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Journal of Magnetic Resonance Imaging

Tập 13 Số 4

534-546

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