MRI at a Glance. CATHERINE WESTBROOK. MSC DCRR CTC. Director of Training and Education. Lodestone Patient Care Ltd. Blackwell. Science. MRI at a Glance encapsulates essential MRI physics knowledge. Illustrated in full colour throughout, its concise text explains complex information, to provide the. This article contains the MRI at a glance 3rd edition pdf ebook. Click the download button to start your free download of the book.
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Read MRI at a Glance PDF Ebook by Catherine ruthenpress.infohed by Wiley- Blackwell, ePUB/PDF , ruthenpress.info .PDF). MRI at a Glance Catherine Westbrook. MRI at a Glance is ideal for student radiographers and MRI technologists, especially those. The second edition of MRI at a Glance, by Catherine Westbrook, provides an illustrated review of basic magnetic resonance (MR) imaging.
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Illustrated in full colour throughout, its concise text explains complex information, to provide the perfect revision aid. It includes topics ranging from magnetism to safety, K space to pulse sequences, and image contrast to artefacts.
This third edition has been fully updated, with revised diagrams and new pedagogy, including 55 key points, tables, scan tips, equations, and learning points.
There is also an expanded glossary and new appendices on optimizing image quality, parameters and trade-offs.
This is because dephasing occurs almost immediately after the RF excitation pulse has been removed. Despite attempts to make the main magnetic field as uniform as possible via shimming see Chapter 43 , inhomogeneities of the external magnetic field are inevitable and slightly alter the magnitude of B0, i.
Owing to the Larmor equation, spins that pass through inhomogeneities experience a precessional frequency and phase change and the resulting signal decays exponentially.
Magnetic field inhomogeneities cause the NMV to dephase before intrinsic magnetic fields of the nuclei can produce dephasing, i. Spins are rephased in two ways Tables Table The NMV decays in the transverse plane and the ability to generate a signal is lost.
The fast edge is now behind the slow edge.
The fast edge eventually catches up with the slow edge reforming the NMV. This is called rephasing. This regenerated signal is called an echo and, because an RF pulse has been used to generate it, it is specifically called a spin echo.
Rephasing pulses may be applied either once or several times to produce either one or several spin echoes.
Catherine has also written some of the leading books in the field. She has been the course leader since She also has significant expertise in delivering distance learning and supporting distance learners.
Love that it was one page per topic and not overdone.
Perfect, to the point. Good for technologists who want to refresh their MRI physics. Amazing book.