Berry / Bulpitt Fundamentals of MRI

An Interactive Learning Approach
Erscheinungsjahr 2011
ISBN: 978-1-58488-902-1
Verlag: Taylor & Francis
Format: PDF
Kopierschutz: Adobe DRM (»Systemvoraussetzungen)

E-Book, Englisch, 320 Seiten

Reihe: Series in Medical Physics and Biomedical Engineering

Fundamentals of MRI: An Interactive Learning Approach explores the physical principles that underpin the technique of magnetic resonance imaging (MRI).

After covering background mathematics, physics, and digital imaging, the book presents fundamental physical principles, including magnetization and rotating reference frame. It describes how relaxation mechanisms help predict tissue contrast and how an MR signal is localized to a selected slice through the body. The text then focuses on frequency and phase encoding. It also explores the spin-echo sequence, its scan parameters, and additional imaging sequences, such as inversion recovery and gradient echo.

The authors enhance the learning experience with practical materials. Along with questions, exercises, and solutions, they include ten interactive programs on the accompanying CD-ROM. These programs not only allow concepts to be clearly demonstrated and further developed, but also provide an opportunity to engage in the learning process through guided exercises.

By providing a solid, hands-on foundation in the physics of MRI, this textbook helps students gain confidence with core concepts before they move on to further study or practical training.

Zielgruppe

Upper level undergraduate and postgraduate students taking medical imaging or physics courses.

Autoren/Hrsg.

Berry, Elizabeth

Bulpitt, Andrew J.

Fachgebiete

• Technische Wissenschaften Sonstige Technologien | Angewandte Technik Medizintechnik, Biomedizintechnik
• Naturwissenschaften Physik Physik Allgemein
• Medizin | Veterinärmedizin Medizin | Public Health | Pharmazie | Zahnmedizin Medizin, Gesundheitswesen Medizintechnik, Biomedizintechnik, Medizinische Werkstoffe
• Technische Wissenschaften Verfahrenstechnik | Chemieingenieurwesen | Biotechnologie Biotechnologie Medizinische Biotechnologie

Inhaltsverzeichnis

Introduction
The Fundamentals of MRI
An Interactive Learning Approach
Using the Programs from Windows® Operating Systems
Non-Windows Operating Systems
Structure of the Book
Mathematics, Physics, and Imaging for MRI
Learning Outcomes
Mathematics for MRI
Physics for MRI
Imaging for MRI
Clinical Imaging Terms for MRI

Basic Physical Principles
Learning Outcomes
Spins and the Net Magnetization Vector
The Larmor Equation
Nuclear Magnetic Resonance
Longitudinal and Transverse Magnetization
Rotating Frame of Reference
Relaxation Mechanisms
Learning Outcomes
T1 and T2 Relaxation
Effect of Magnetic Field Strength on Relaxation Mechanisms
Saturation Recovery Graphs and Tissue Contrast
Contrast Agents

Slice Selection
Learning Outcomes
Gradient Fields
Gradient Fields for Slice Selection
RF Pulse for Slice Selection: Center Frequency and Transmitted Bandwidth
The Slice Selection Program
Acquiring Several Slices
Additional Self-Assessment Questions

Frequency Encoding
Learning Outcomes
Principles of Frequency Encoding
Gradient Fields for Frequency Encoding
The Frequency Encoding Demonstrator
Effect of Gradient Strength and Receiver Bandwidth on Field of View (FOV)
Additional Self-Assessment Questions

Phase Encoding
Learning Outcomes
Principles of Phase Encoding
Gradient Fields for Phase Encoding
The Phase Encoding Demonstrator
The Effect of Gradient Strength and Duration on Phase Shift
Repeated Phase Encoding Steps
The Data Matrix
Additional Self-Assessment Questions

The Spin-Echo Imaging Sequence
Learning Outcomes
The Concept of the Spin-Echo Sequence
Demonstration of the Principles of the Spin-Echo Sequence
TR and TE
Timing Diagram
Additional Self-Assessment Questions

Scan Parameters for the Spin-Echo Imaging Sequence
Learning Outcomes
Image Gray-Scale Characteristics
Image Spatial Characteristics
Image Noise Characteristics
Scan Time
The Spin-Echo Image Simulator
System Performance Assessment

Further Imaging Sequences
Learning Outcomes
Inversion Recovery Sequence
The Inversion Recovery Image Simulator
The Gradient-Echo Sequence
Flow Phenomena
Flow Phenomena Demonstrator: Spin-Echo Imaging Sequence
Magnetic Resonance Angiography (MRA)

Multiple-Choice Questions
Multiple-Choice Questions
Answers to Multiple-Choice Questions
Index