MRI

Artefacts

Introduction to MRI Artefacts

Equipment Failure/Limitations

5 Topics

RF Interferences

Failed Element in Phased Array Coil

Individual RF Channel Problems

Coil Decoupling Failure

Gradient Miscalibration

Patient-related Artefacts

4 Topics

B0 Inhomogeneity

Metal Artefact and Artefact Reduction Sequences

Magic Angle Artefact

Artefacts Based on Limitations of MR Physics

11 Topics

Chemical Shift Artefact (of the First Kind) and Echo Planar Imaging

Distortions in the MRI Image

Chemical Shift (of the second kind) and DIxon Methods

Wrong Centre Frequency

Banding Artefacts

B1 Inhomogeneity

Eddy Current Based Distortions

Reconstruction-based Artefacts

6 Topics

Venetian Blind Artefact

Excessive Partial Fourier

Dixon Fat-water Swaps

Slice Cross Talk

Artefact Associated with Parallel Imaging

Safety

Introduction to MRI Safety

Static Magnetic Field

2 Topics

Static Magnetic Field

B0 Biological Effects

Time Varying Magnetic Fields

3 Topics

Effects of Imaging Gradients

MR Scanner Operator Modes

Effects of the RF Field, SAR Limits and RF Burns

Contrast Agents

Guidelines for MRI Safety and Classification of People Working in MRI

3 Topics

Classification of People in MRI

Regulations and Standards for MR Safety Labelling

MRI Safety – Summary

MRI Multiple Choice Questions

3 of 3

B0 Biological Effects

MRI Static Magnetic Field B0 Biological Effects

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