Diffusion weighted imaging: Technique and applications |
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Authors: | Vinit Baliyan Chandan J Das Raju Sharma Arun Kumar Gupta |
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Institution: | Vinit Baliyan, Chandan J Das, Raju Sharma, Arun Kumar Gupta, Department of Radiology, All India Institute of Medical Sciences, New Delhi 110029, India |
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Abstract: | Diffusion weighted imaging (DWI) is a method of signal contrast generation based on the differences in Brownian motion. DWI is a method to evaluate the molecular function and micro-architecture of the human body. DWI signal contrast can be quantified by apparent diffusion coefficient maps and it acts as a tool for treatment response evaluation and assessment of disease progression. Ability to detect and quantify the anisotropy of diffusion leads to a new paradigm called diffusion tensor imaging (DTI). DTI is a tool for assessment of the organs with highly organised fibre structure. DWI forms an integral part of modern state-of-art magnetic resonance imaging and is indispensable in neuroimaging and oncology. DWI is a field that has been undergoing rapid technical evolution and its applications are increasing every day. This review article provides insights in to the evolution of DWI as a new imaging paradigm and provides a summary of current role of DWI in various disease processes. |
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Keywords: | Diffusion weighted imaging Diffusion tensor imaging Onco-imaging Neuro-imaging |
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| 点击此处可从《World journal of radiology》浏览原始摘要信息 |