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Informationen zum Autor ABOUT THE AUTHORS 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. Klappentext MRI IN PRACTICE MRI in Practice continues to be the number one reference book and study guide for magnetic resonance imaging, including 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, such as: basic principles, image weighting and contrast, spin and gradient echo pulse sequences, spatial encoding, k-space, protocol optimization, artefacts, instrumentation, and MRI safety. The leading MRI reference book and study guide. Now with a greater focus on the physics behind MRI. Offers, for the first time, equations and their explanations and scan tips. Brand new chapters on MRI equipment, vascular imaging and safety. Presented in full color, with additional illustrations and high-quality MRI images to aid understanding. Includes refined, updated and expanded content throughout, along with more learning tips and practical applications. Features a new glossary. MRI in Practice is an important text for radiographers, technologists, radiology residents, radiologists, and other students and professionals working within imaging, including medical physicists and nurses. Zusammenfassung 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.* The leading MRI reference book and study guide.* Now with a greater focus on the physics behind MRI.* Offers! for the first time! equations and their explanations and scan tips.* Brand new chapters on MRI equipment! vascular imaging and safety.* Presented in full color! with additional illustrations and high-quality MRI images to aid understanding.* Includes refined! updated and expanded content throughout! along with more learning tips and practical applications.* Features a new glossary.MRI in Practice is an important text for radiographers! technologists! radiology residents! radiologists! and other students and professionals working within imaging! including medical physicists and nurses. Inhaltsverzeichnis Preface to the Fifth Edition ix Acknowledgments xi List of Acronyms xiii Equation symbols xvii About the Companion Website xix Chapter 1 Basic principles 1 Introduction 1 Atomic structure 2 Motion in the atom 2 MR active nuclei 4 The hydrogen nucleus 5 Alignment 6 Net magnetic vector (NMV) 8 Precession and precessional (Larmor) frequency 10 Precessional phase 13 Resonance 13 MR signal 18 The free Induction decay(FDI) signal 20 Pulse timing parameters 22 Chapter 2 Image weighting and contrast 24 Introduction 24 Image contrast 25 Relaxation 25 T1 recovery 26 T2 decay 27 Contrast mechanisms 31 > T1 contrast 36 T2 contrast 40 Proton density contrast 41 Weighting 42 Other contrast mechanisms 51 Chapter 3 Spin echo pulse sequences 58 Introduction 58 RF rephasing 59 Conventional spin echo 65 Fast or turbo spin echo FSE/TSE) 68 Inversion recovery (IR) 78 Short tau inversion ...
