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Book Cover
E-book
Author Westbrook, Catherine

Title MRI at a Glance
Published Newark : John Wiley & Sons, Incorporated, 2016

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Description 1 online resource (331 p.)
Series New York Academy of Sciences Ser
New York Academy of Sciences Ser
Contents Intro -- QR code -- TitlePage -- Copyright -- Preface -- Acknowledgement -- How to use your textbook -- About the companion website -- 1 Magnetism and electromagnetism -- Magnetic susceptibility -- Paramagnetism -- Diamagnetism -- Ferromagnetism -- Electromagnetism -- 2 Atomic structure -- Introduction -- Motion within the atom -- MR active nuclei -- 3 Alignment -- The classical theory -- The quantum theory -- What do the quantum and classical theories tell us? -- 4 Precession -- Precessional (Larmor) frequency -- Precessional phase -- 5 Resonance and signal generation -- Energy absorption
Phase coherence -- The MR signal -- 6 Contrast mechanisms -- What is contrast? -- Extrinsic contrast parameters -- Intrinsic contrast mechanisms -- The composition of fat and water -- 7 Relaxation mechanisms -- Relaxation processes -- Field inhomogeneities -- 8 T1 recovery -- T1 recovery in fat -- T1 recovery in water -- Control of T1 recovery -- 9 T2 decay -- T2 decay in fat -- T2 decay in water -- Control of T2 decay -- 10 T1 weighting -- Typical values -- 11 T2 weighting -- Typical values -- 12 PD weighting -- Typical values -- Other types of weighting -- 13 Conventional spin echo
Mechanisms of CSE -- Contrast -- Typical values -- Uses -- 14 Fast or turbo spin echo -- how it works -- Mechanism -- Contrast -- 15 Fast or turbo spin echo -- how it is used -- Typical values -- Uses -- 16 Inversion recovery -- Mechanism -- Contrast -- Uses -- 17 Gradient echo -- how it works -- Mechanism -- 18 Gradient echo -- how it is used -- Typical values -- Uses -- 19 The steady state -- Echo generation in the steady state -- 20 Coherent gradient echo -- Mechanism -- Typical values -- Uses -- 21 Incoherent gradient echo -- Mechanism -- Typical values -- Uses -- 22 Steady-state free precession
Mechanism -- Typical values -- Uses -- 23 Balanced gradient echo -- Mechanism -- Typical values -- Uses -- 24 Ultrafast sequences -- Turbo gradient echo -- Echo planar imaging -- Typical values -- Uses -- 25 Diffusion and perfusion imaging -- Diffusion weighted imaging -- Perfusion imaging -- 26 Functional imaging techniques -- Functional MR imaging (fMRI) -- Spectroscopy -- 27 Gradient functions -- How gradients work -- 28 Slice selection -- Mechanism -- Slice thickness -- 29 Phase encoding -- Mechanism -- 30 Frequency encoding -- Mechanism -- 31 K space -- what is it?
32 K space -- how is it filled? -- 33 K space and image quality -- K space -- signal and contrast -- K space -- spatial resolution -- 34 Data acquisition -- frequency -- Changing the receive bandwidth -- Changing the frequency matrix -- 35 Data acquisition -- phase -- 36 Data acquisition -- scan time -- TR -- Phase matrix -- Number of signal averages (NSA) -- Types of acquisition -- Reducing scan time -- 37 K space traversal and pulse sequences -- K space traversal in gradient echo -- K space traversal in spin echo -- K space traversal in single shot -- K space traversal in spiral imaging
Notes Description based upon print version of record
38 Alternative K space filling techniques
Subject Magnetic resonance imaging -- Outlines, syllabi, etc
Medical physics -- Outlines, syllabi, etc
Genre/Form Electronic books
Form Electronic book
ISBN 9781119053538
1119053536