Details

MRI at a Glance


MRI at a Glance


At a Glance 3. Aufl.

von: Catherine Westbrook

30,99 €

Verlag: Wiley-Blackwell
Format: PDF
Veröffentl.: 18.11.2015
ISBN/EAN: 9781119053545
Sprache: englisch
Anzahl Seiten: 136

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Beschreibungen

<b>Highly Commended at the British Medical Association Book Awards 2016</b><br /><br /><i>MRI at a Glance</i> 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.<br />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.<br /><br />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.<br /> <p><i>MRI at a Glance</i> 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.</p>
<p>Preface vii</p> <p>Acknowledgements viii</p> <p>How to use your textbook ix</p> <p>About the companion website xi</p> <p>1 Magnetism and electromagnetism 2</p> <p>2 Atomic structure 4</p> <p>3 Alignment 6</p> <p>4 Precession 8</p> <p>5 Resonance and signal generation 10</p> <p>6 Contrast mechanisms 12</p> <p>7 Relaxation mechanisms 14</p> <p>8 T1 Recovery 16</p> <p>9 T2 decay 18</p> <p>10 T1 weighting 20</p> <p>11 T2 weighting 22</p> <p>12 PD weighting 24</p> <p>13 Conventional spin echo 26</p> <p>14 Fast or turbo spin echo – how it works 28</p> <p>15 Fast or turbo spin echo – how it is used 30</p> <p>16 Inversion recovery 32</p> <p>17 Gradient echo – how it works 34</p> <p>18 Gradient echo – how it is used 36</p> <p>19 The steady state 38</p> <p>20 Coherent gradient echo 40</p> <p>21 Incoherent gradient echo 42</p> <p>22 Steady-state free precession 44</p> <p>23 Balanced gradient echo 46</p> <p>24 Ultrafast sequences 48</p> <p>25 Diffusion and perfusion imaging 50</p> <p>26 Functional imaging techniques 52</p> <p>27 Gradient functions 54</p> <p>28 Slice selection 56</p> <p>29 Phase encoding 58</p> <p>30 Frequency encoding 60</p> <p>31 K space – what is it? 62</p> <p>32 K space – how is it filled? 64</p> <p>33 K space and image quality 66</p> <p>34 Data acquisition – frequency 68</p> <p>35 Data acquisition – phase 70</p> <p>36 Data acquisition – scan time 72</p> <p>37 K space traversal and pulse sequences 74</p> <p>38 Alternative K space filling techniques 76</p> <p>39 Signal to noise ratio 78</p> <p>40 Contrast to noise ratio 80</p> <p>41 Spatial resolution 82</p> <p>42 Chemical shift artefacts 84</p> <p>43 Phase mismapping 86</p> <p>44 Aliasing 88</p> <p>45 Other artefacts 90</p> <p>46 Flow phenomena 92</p> <p>47 Time-of-flight MR angiography 94</p> <p>48 Phase contrast MR angiography 96</p> <p>49 Contrast-enhanced MR angiography 98</p> <p>50 Contrast agents 100</p> <p>51 Magnets 102</p> <p>52 Radiofrequency coils 104</p> <p>53 Gradients and other hardware 106</p> <p>54 MR safety – bio-effects 108</p> <p>55 MR safety – projectiles 110</p> <p>Appendix 1a: The results of optimizing image quality 112</p> <p>Appendix 1b: Parameters and their associated trade-offs 113</p> <p>Appendix 2: Artefacts and their remedies 114</p> <p>Appendix 3: Main manufacturers’ acronyms 115</p> <p>Glossary 116</p> <p>Index 121</p>
<b>Catherine Westbrook</b>, Senior Lecturer and Course Leader, Faculty of Medical Science, Anglia Ruskin University, UK.
<p><i>MRI at a Glance </i>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.</p> <p>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.</p> <p><i>MRI at a Glance </i>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.</p> <p>A companion website is available at <b>www.ataglanceseries.com/mri</b> featuring animations, interactive multiple choice questions and scan tips to improve your own MRI technique.</p>

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