Structural magnetic resonance imaging

J. Suckling and E. T. Bullmore

Introduction Historical background Magnetization

Nuclear magnetic resonance Magnetic resonance imaging

Fast. .spin, echosequence Diffusion-weighted.imagi.ng

Safety Artefacts Movement

Susceptibility

Partialvolume

MRI.hardware

Superconducting,, magnet

RadiofrequencycoH

Computers

The^scanner ,roioim

Case-control design Power

Representativeness

Heterogeneity

Matching

Otherdesigns

Dataanalysis Clinicalanalysis

Quantitative,, analysis

F.u.rthe.Lres.ding Introduction

Magnetic resonance imaging (MRI) is a versatile and evolving technology for visualizing the structure, function, and metabolism of the living human brain. All kinds of MRI data can be acquired without exposing subjects to ionizing radiation or radioactive isotopes. Installing the hardware for MRI represents a major capital investment, of approximately £1.5 million, but this is considerably less than the costs of setting up a positron emission tomography unit. For these three reasons of versatility, safety, and (relative) affordability, MRI is likely to be the dominant brain-imaging technique in psychiatric practice and research for at least the next 15 years.

In this chapter, we introduce the principles and practicalities of MRI and describe common methods of structural MRI data acquisition and analysis. Chapter2.3.8 on functional MRI provides greater detail on statistical issues arising in image analysis.

Break Free From Passive Aggression

Break Free From Passive Aggression

This guide is meant to be of use for anyone who is keen on developing a better understanding of PAB, to help/support concerned people to discover various methods for helping others, also, to serve passive aggressive people as a tool for self-help.

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