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Record Nr. |
UNINA9910460941503321 |
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Autore |
Westbrook Catherine |
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Titolo |
MRI at a glance / / Catherine Westbrook |
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Pubbl/distr/stampa |
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Chichester, West Sussex, England : , : John Wiley & Sons, Ltd., , 2016 |
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©2016 |
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ISBN |
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1-78785-122-2 |
1-119-05354-4 |
1-119-05353-6 |
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Edizione |
[Third edition.] |
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Descrizione fisica |
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1 online resource (xi, 123 pages) : illustrations (chiefly color) |
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Collana |
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Disciplina |
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Soggetti |
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Magnetic resonance imaging |
Medical physics |
Electronic books. |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Nota di contenuto |
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Intro; QR code; TitlePage; Copyright; Preface; Acknowledgement; How to use your textbook; About the companion website; 1 Magnetism and electromagnetism; 2 Atomic structure; 3 Alignment; 4 Precession; 5 Resonance and signal generation; 6 Contrast mechanisms; 7 Relaxation mechanisms; 8 T1 recovery; 9 T2 decay; 10 T1 weighting; 11 T2 weighting; 12 PD weighting; 13 Conventional spin echo; 14 Fast or turbo spin echo - how it works; 15 Fast or turbo spin echo - how it is used; 16 Inversion recovery; 17 Gradient echo - how it works; 18 Gradient echo - how it is used; 19 The steady state |
20 Coherent gradient echo21 Incoherent gradient echo; 22 Steady-state free precession; 23 Balanced gradient echo; 24 Ultrafast sequences; 25 Diffusion and perfusion imaging; 26 Functional imaging techniques; 27 Gradient functions; 28 Slice selection; 29 Phase encoding; 30 Frequency encoding; 31 K space - what is it?; 32 K space - how is it filled?; 33 K space and image quality; 34 Data acquisition - frequency; 35 Data acquisition - phase; 36 Data acquisition - scan time; 37 K space traversal and pulse sequences; 38 Alternative K space filling techniques; 39 Signal to noise ratio |
40 Contrast to noise ratio41 Spatial resolution; 42 Chemical shift |
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artefacts; 43 Phase mismapping; 44 Aliasing; 45 Other artefacts; 46 Flow phenomena; 47 Time-of-flight MR angiography; 48 Phase contrast MR angiography; 49 Contrast-enhanced MR angiography; 50 Contrast agents; 51 Magnets; 52 Radiofrequency coils; 53 Gradients and other hardware; 54 MR safety - bio-effects; 55 MR safety - projectiles; Appendix 1(a): The results of optimizing image quality; Appendix 1(b): Parameters and their associated trade-offs; Appendix 2: Artefacts and their remedies; Appendix 3: Main manufacturers' acronyms |
GlossaryIndex; Eula; Magnetic susceptibility; Paramagnetism; Diamagnetism; Ferromagnetism; Electromagnetism; Introduction; Motion within the atom; MR active nuclei; The classical theory; The quantum theory; What do the quantum and classical theories tell us?; Precessional (Larmor) frequency; Precessional phase; Energy absorption; Phase coherence; The MR signal; What is contrast?; Extrinsic contrast parameters; Intrinsic contrast mechanisms; The composition of fat and water; Relaxation processes; Field inhomogeneities; T1 recovery in fat; T1 recovery in water; Control of T1 recovery |
T2 decay in fatT2 decay in water; Control of T2 decay; Typical values; Typical values; Typical values; Other types of weighting; Mechanisms of CSE; Contrast; Typical values; Uses; Mechanism; Contrast; Typical values; Uses; Mechanism; Contrast; Uses; Mechanism; Typical values; Uses; Echo generation in the steady state; Mechanism; Typical values; Uses; Mechanism; Typical values; Uses; Mechanism; Typical values; Uses; Mechanism; Typical values; Uses; Turbo gradient echo; Echo planar imaging; Typical values; Uses; Diffusion weighted imaging; Perfusion imaging; Functional MR imaging (fMRI) |
Spectroscopy |
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2. |
Record Nr. |
UNINA9910895192303321 |
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Titolo |
Rebirth news / Excellenzcluster Rebirth |
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Pubbl/distr/stampa |
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Hannover, : MHH, 2009-2018 |
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Descrizione fisica |
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Soggetti |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Periodico |
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Note generali |
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