MRI in Practice 5th Edition by Catherine Westbrook, ISBN-13: 978-1119391968

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MRI in Practice 5th Edition by Catherine Westbrook, ISBN-13: 978-1119391968

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• Publisher: ‎ Wiley-Blackwell; 5th edition (October 22, 2018)
• Language: ‎ English
• 416 pages
• ISBN-10: 1119391962
• ISBN-13: ‎ 978-1119391968

MRI in Practice continues to be the number one reference book and study guide for the registry review examination for MRI offered by the American Registry for Radiologic Technologists (ARRT). This latest edition offers in-depth chapters covering all core areas, including: basic principles, image weighting and contrast, spin and gradient echo pulse sequences, spatial encoding, k-space, protocol optimization, artefacts, instrumentation, and MRI safety.

Table of Contents:

Preface

Acknowledgments

Acronyms

Nomenclature

About the companion website

1 Basic principles

Introduction

Atomic structure

Motion in the atom

MR-active nuclei

The hydrogen nucleus

Alignment

Net magnetic vector (NMV)

Precession and precessional (Larmor) frequency

Precessional phase

Resonance

MR signal

The free induction decay (FID) signal

Pulse timing parameters

References

2 Image weighting and contrast

Introduction

Image contrast

Relaxation

T1 recovery

T2 decay

Contrast mechanisms

Relaxation in different tissues

T1 contrast

T2 contrast

Proton density contrast

Weighting

References

3 Spin-echo pulse sequences

Introduction

RF rephasing

Conventional spin-echo

Fast or turbo spin-echo (FSE/TSE)

References

4 Gradient-echo pulse sequences

Introduction

Variable flip angle

Gradient rephasing

Weighting in gradient-echo pulse sequences

Coherent or rewound gradient-echo

Incoherent or spoiled gradient-echo

Reverse-echo gradient-echo

Balanced gradient-echo

Fast gradient-echo

Echo planar imaging

References

5 Spatial encoding

Introduction

Mechanism of Gradients

Gradient Axes

Slice-Selection

Frequency Encoding

Phase Encoding

Bringing it All Together – Pulse Sequence Timing

References

6 k-Space

Introduction

Part 1: What is k-Space?

Part 2: How are Data Acquired and How are Images Created from These Data?

Part 3: Some Important Facts About k-Space!

Part 4: How Do Pulse Sequences Fill k-Space?

Part 5: Options that Fill k-Space

References

7 Protocol optimization

Introduction

Signal-to-Noise Ratio (SNR)

Contrast-to-Noise Ratio (CNR)

Spatial Resolution

Scan Time

Trade-Offs

Protocol Development and Modification

References

8 Artifacts

Introduction

Phase Mismapping

Aliasing

Chemical Shift Artifact

Out-of-Phase Signal Cancellation

Magnetic Susceptibility Artifact

Truncation Artifact

Cross-Excitation/Cross-Talk

Zipper Artifact

Shading Artifact

MoirÉ Artifact

Magic Angle

Equipment Faults

Flow Artifacts

Flow-Dependent (Non-Contrast-Enhanced) Angiography

Black-Blood Imaging

Phase-Contrast MRA

References

9 Instrumentation

Introduction

Magnetism

Scanner Configurations

Magnet System

Magnet Shielding

Shim System

Gradient System

RF System

Patient Transport System

Computer System and Graphical User Interface

References

10 MRI safety

Introduction (And Disclaimer)

Definitions Used in MRI Safety

Psychological Effects

The Spatially Varying Static Field

Electromagnetic (Radiofrequency) Fields

Time-Varying Gradient Magnetic Fields

Cryogens

Safety Tips

Additional Resources

References

Glossary

Index

End User License Agreement

CATHERINE WESTBROOK, Senior Lecturer and Course Leader, MSc Magnetic Resonance Imaging (MRI), Anglia Ruskin University, Cambridge, UK.

JOHN TALBOT, Senior Lecturer, MSc Magnetic Resonance Imaging (MRI), Anglia Ruskin University, Cambridge, UK.

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