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.
Preface to the Fifth Edition
List of Acronyms
About the Companion Website
Chapter 1 Basic principles
Motion in the atom
MR active nuclei
The hydrogen nucleus
Net magnetic vector (NMV)
Precession and precessional (Larmor) frequency
Pulse timing parameters
Chapter 2 Image weighting and contrast
Relaxation in different tissues
Proton density contrast
Other contrast mechanisms
Chapter 3 Spin echo pulse sequences
Conventional spin echo
Fast or turbo spin echo FSE/TSE)
Inversion recovery (IR)
Short tau inversion recovery (STIR)
Fluid attenuated inversion recovery (FLAIR)
Chapter 4 Gradient echo pulse sequences
Variable flip angle
Weighting in gradient echo pulse sequences
Weighting mechanism 1 extrinsic contrast parameters
Weighting mechanism 2 the steady state
Weighing mechanism 3 residual transverse magnetization
Coherent or rewound gradient echo
Incoherent or spoiled gradient echo
Reverse–echo gradient echo
Balanced gradient echo
Fast gradient echo
Echo planar imaging (EPI)
Chapter 5 Spatial encoding
Mechanism of gradients
Data collection and image formation
Bringing it all together pulse sequence timing
Chapter 6 k–space
Part 1 what is k–space?
Part 2 – how are data acquired and how are images created from this data?
Part 3 some important facts about k–space
Part 4: how do pulse sequences fill k–space?
Part 5: options that fill k–space
Chapter 7 Protocol optimization
Signal to noise ratio (SNR)
Contrast to noise ratio (CNR)
Protocol development and modification
Chapter 8 Artefacts
Chemical shift artefact
Out of phase signal cancellation
Magnetic susceptibility artefact
Flow–dependent (non–contrast enhanced) angiography
Phase contrast MRA
Chapter 9 Instrumentation
Patient transport system
Computer system and graphic user interface
Chapter 10 MRI safety
Introduction (and disclaimer)
Definitions used in MRI safety
The spatially–varying static field
Electromagnetic (radiofrequency) fields
Time–Varying Gradient Magnetic Fields