MRI : basic principles and applications / Mark A. Brown, Richard C. Semelka.

Format:

Book

Author/Creator:

Brown, Mark A., 1955-

Contributor:

Semelka, Richard C.

Language:

English

Subjects (All):

Magnetic resonance imaging.

Magnetic Resonance Imaging.

Medical Subjects:

Magnetic Resonance Imaging.

Physical Description:

xiv, 265 pages : illustrations ; 24 cm

Edition:

Third edition.

Other Title:

Magnetic resonance imaging

Place of Publication:

Hoboken, N.J. : Wiley-Liss, [2003]

Summary:

MRI: Basic Principles and Applications, 3rd Edition provides a general introduction to the physics of Magnetic Resonance Imaging. Since publication of the Second Edition in 1999, there have been a number of key advances in the field. This updated and revised edition includes dozens of brand new images to support the text, as well as added discussions on 3D imaging, real time imaging, cardiac imaging, and parallel acquisition techniques. Clinical protocols have been thoroughly updated and revised to reflect current methodologies. Minimizing the use of formulas, this indespensible reference presents the topics in a clear, readable style.

Contents:

1 Production of Net Magnetization 1

2 Concepts of Magnetic Resonance 11

3 Relaxation 21

3.1 T1 Relaxation and Saturation 21

3.2 T2 Relaxation, T2 Relaxation and Spin Echoes 25

4 Principles of Magnetic Resonance Imaging

Part 1 33

4.1 Slice Selection 34

4.2 Readout or Frequency Encoding 37

4.3 Phase Encoding 40

4.4 Sequence Looping 43

5 Principles of Magnetic Resonance Imaging

Part 2 49

5.1 Frequency-Selective Excitation 49

5.2 Raw Data and Image Data Matrices 53

5.3 Raw Data and k Space 55

5.4 Reduced k Space Acquisitions 62

5.5 Parallel Acquisition Techniques 64

6 Pulse Sequences 67

6.1 Spin Echo Sequences 69

6.2 Gradient Echo Sequences 73

6.3 Echo Planar Imaging Sequences 80

6.4 Magnetization-Prepared Sequences 82

7 Measurement Parameters and Image Contrast 93

7.1 Intrinsic Parameters 94

7.2 Extrinsic Parameters 97

7.3 Parameter Tradeoffs 100

8 Additional Sequence Modifications 103

8.1 Spatial Presaturation 103

8.2 Fat Saturation 105

8.3 Magnetization-Transfer Suppression 107

8.4 Composite Pulses 110

9 Artifacts 113

9.1 Motion Artifacts 113

9.2 Sequence/Protocol-Related Artifacts 117

9.3 External Artifacts 129

10 Motion Artifact Reduction Techniques 141

10.1 Acquisition Parameter Modification 142

10.2 Triggering/Gating 144

10.3 Flow Compensation 149

11 Magnetic Resonance Angiography 151

11.1 Time-of-Flight MRA 153

11.2 Phase Contrast MRA 157

11.3 Maximum Intensity Projection 162

12 Advanced Imaging Applications 165

12.1 Diffusion 165

12.2 Perfusion 169

12.3 Functional Brain Imaging 173

12.4 Ultra-High Field Imaging 176

12.5 Noble Gas Imaging 178

13 Magnetic Resonance Spectroscopy 181

13.1 Additional Concepts 181

13.2 Localization Techniques 186

13.3 Spectral Analysis and Postprocessing 189

13.4 Ultrahigh Field Spectroscopy 194

14 Instrumentation 197

14.1 Computer Systems 197

14.2 Magnet System 201

14.3 Gradient System 204

14.4 Radio Frequency System 206

14.5 Data Acquisition System 208

14.6 Summary of System Components 210

15 Contrast Agents 213

15.1 Intravenous Agents 214

15.2 Oral Agents 221

16 Clinical Applications 223

16.1 General Principles of Clinical MR Imaging 224

16.2 Examination Design Considerations 225

16.3 Protocol Considerations for Anatomical Regions 226

16.4 Recommendations for Specific Sequences and Clinical Situations 243.

Notes:

Includes bibliographical references (pages [247]-249) and index.

ISBN:

0471433101

OCLC:

51769233