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Diffusion Tensor Imaging: A New Technique for Studying the Brain

Introduction

Diffusion tensor imaging (DTI) is a new magnetic resonance imaging (MRI) technique that allows doctors to see the white matter tracts in the brain. White matter tracts are bundles of nerve fibers that connect different parts of the brain. They are responsible for transmitting information between different brain regions.

How DTI Works

DTI works by measuring the diffusion of water molecules in the brain. Water molecules diffuse more easily along white matter tracts than they do across them. This is because the white matter tracts are lined with a fatty substance called myelin, which helps to insulate the nerve fibers. By measuring the diffusion of water molecules, DTI can create a map of the white matter tracts in the brain.

Applications of DTI

DTI has a wide range of applications in the study of the brain. It can be used to:

• Diagnose brain disorders, such as stroke, Alzheimer's disease, and multiple sclerosis
• Track the development of the brain in children and adolescents
• Study the effects of brain injuries
• Plan brain surgery

Conclusion

DTI is a powerful new tool for studying the brain. It has the potential to revolutionize our understanding of brain function and disease.