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For Instructors Request Inspection Copy. Essentials for Innovative Technologies describes novel methods to improve magnetic resonance imaging MRI beyond its current limitations. It proposes smart encoding methods and acquisition sequences to deal with frequency displacement due to residual static magnetic field inhomogeneity, motion, and undersampling.

Requiring few or no hardware modifications, these speculative methods offer building blocks that can be combined and refined to overcome barriers to more advanced MRI applications, such as real-time imaging and open systems. After a concise review of basic mathematical tools and the physics of MRI, the book describes the severe artifacts produced by conventional MRI techniques.

It first tackles magnetic field inhomogeneities, outlining conventional solutions as well as a completely different approach based on time-varying gradients and temporal frequency variation coding acceleration. The book then proposes two innovative acquisition methods for reducing acquisition time, motion, and undersampling artifacts: For some of the proposed solutions, this is the first time the reported results have been published. Where experimental data is preliminary or unavailable, the book presents only numerical solutions.

Offering insight into emerging MRI techniques, this book provides readers with specialized knowledge to help them design better acquisition sequences and select appropriate correction methods. Therefore, the book is useful for both a clinical audience and MRI technologists. The more than full-color figures are clear and instructive. A comprehensive glossary reviews the extensive jargon used in the MRI field.

The appendix has also decision trees for BOLD blood oxygenation level—dependent functional MRI study design, and the references are updated. Footnotes Published online Jul. This Article First published July 31, , doi: Services Email this article to a colleague Alert me when this article is cited Alert me if a correction is posted Similar articles in this journal Download to citation manager.

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Related Content Load related web page information. The groundwork continues with a detailed discussion of transverse magnetization and radiofrequency as they relate to excitation and relaxation. The final chapter in part I reviews gradient magnetic fields in terms of current hardware—that is, the types of magnets available today in MRI technology, as well as radiofrequency coils, shielding, and computers.

Part II moves the discussion from producing the MRI signal to locating and measuring the signal in tissue and differentiating the signal coming from different types of tissue e. Key terms familiar in nuclear medicine, including slice thickness, slice localization, spatial localization, and spatial resolution, are presented as they relate to MRI.

Throughout this discussion, the reader is continually reminded that in MRI technology, frequency is location. The complexity of the discussion regarding single and two-dimensional Fourier transformation easily makes it one of the most difficult topics to understand in the book. The remainder of part II enters the more practical world of MRI, including variables that affect field of view, as well as pulse sequences; multiple echoes, multiple slices, and gradient echo.

MRI: Essentials for Innovative Technologies

Quality assurance, quality control, and safety are critical to any imaging modality. The author presents an excellent and detailed discussion on the variables in MRI technology affecting both image quality and safety. Part III provides what the author admits is a somewhat superficial discussion of advanced MRI techniques, including saturation techniques, fast imaging, volumetric imaging, parallel imaging, angiography, diffusion detection, magnetic susceptibility, spectroscopy, and spectroscopic imaging.

Although the author believes, as do I, that each of these topics warrants an entire book for adequate discussion, to the beginner in MRI technology each chapter provides a basic understanding of the subject that can be enhanced, as desired, with further reading.


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  2. MRI : essentials for innovative technologies / Giuseppe Placidi - Details - Trove.
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