http://knol.google.com/k/christopher-hess/brain-ct-mri/biWBkaDv/wqrGdg#
The structure and function of the brain can be studied noninvasively by doctors and researchers using computed tomography (CT) and magnetic resonance imaging (MRI). This Knol discusses how images of the brain are generated using these techniques, provides examples of the different types of information that can be revealed, addresses the relative strengths and weaknesses of each modality for evaluating several common disorders of the central nervous system, and covers some of their potential risks. A high-resolution atlas of MRI anatomy is also included.
Contents
Introduction
How are brain images made with CT?
How are brain images made with MRI?
What is a contrast agent?
What do brain CT and MRI images show?
Examples of head CT and MRI
Is CT or MRI better for imaging the brain?
What are the risks of brain CT and MRI?
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