MRI at a Glance encapsulates essential MRI physics knowledge. Illustrated in full colour throughout, its concise text explains complex information, to provide the perfect revision aid. It includes topics ranging from magnetism to safety, K space to pulse sequences, and image contrast to artefacts.
This third edition has been fully updated, with revised diagrams and new pedagogy, including 55 key points, tables, scan tips, equations, and learning points. There is also an expanded glossary and new appendices on optimizing image quality, parameters and trade–offs.
A companion website is also available at www.ataglanceseries.com/mri featuring animations, interactive multiple choice questions, and scan tips to improve your own MRI technique.
MRI at a Glance is ideal for student radiographers and MRI technologists, especially those undertaking the American Registry of Radiation Technologist (ARRT) MRI examination, as well as other health professionals involved in MRI.
Contents
Preface
Acknowledgements
How to use your textbook
About the companion website
1 Magnetism and electromagnetism
2 Atomic structure
3 Alignment
4 Precession
5 Resonance and signal generation
6 Contrast mechanisms
7 Relaxation mechanisms
8 T1 Recovery
9 T2 decay
10 T1 weighting
11 T2 weighting
12 PD weighting
13 Conventional spin echo
14 Fast or turbo spin echo how it works
15 Fast or turbo spin echo how it s used
16 Inversion Recovery
17 Gradient echo how it works
18 Gradient echo how it s used
19 The steady state
20 Coherent gradient echo
21 Incoherent gradient echo
22 Steady state free precession
23 Balanced gradient echo
24 Ultrafast sequences
25 Diffusion and perfusion imaging
26 Functional imaging techniques
27 Gradient functions
28 Slice selection
29 Phase encoding
30 Frequency encoding
31 K space what is it?
32 K space how is it filled?
33 K space and image quality
34 Data acquisition – frequency
35 Data acquisition – phase
36 Data acquisition scan time
37 K space traversal and pulse sequences
38 Alternative K space filling techniques
39 Signal to noise ratio
40 Contrast to noise ratio
41 Spatial resolution
42 Chemical shift artefacts
43 Phase mismapping
44 Aliasing
45 Other artefacts
46 Flow phenomena
47 Time of flight MR angiography
48 Phase contrast MR angiography
49 Contrast enhanced MR angiography
50 Contrast agents
51 Magnets
52 Radiofrequency coils
53 Gradients and other hardware
54 MR safety: bio–effects
55 MR safety: projectiles
Appendix 1a: The results of optimizing image quality
Appendix 1(b): Parameters and their associated trade–offs
Appendix 2: Artefacts and their remedies
Appendix 3: Main manufactures acronyms
Glossary
Index
