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Basic principles of magnetic resonance imaging--an update Scherzinger AL; Hendee WRWest J Med 1985[Dec]; 143 (6): 782-92Magnetic resonance (MR) imaging technology has undergone many technologic advances over the past few years. Many of these advances were stimulated by the wealth of information emerging from nuclear magnetic resonance research in the areas of new and optimal scanning methods and radio-frequency coil design. Other changes arose from the desire to improve image quality, ease siting restrictions and generally facilitate the clinical use of MR equipment. Many questions, however, remain unanswered. Perhaps the most controversial technologic question involves the optimal field strength required for imaging or spectroscopic applications or both. Other issues include safety and clinical efficacy. Technologic issues affect all aspects of MR use including the choice of equipment, examination procedure and image interpretation. Thus, an understanding of recent changes and their theoretic basis is necessary.|*Magnetic Resonance Spectroscopy/instrumentation/methods[MESH]|Image Enhancement[MESH]|Physical Phenomena[MESH]|Physics[MESH] |
