Magnetic resonance velocity mapping: clinical application of a new technique.

Magnetic resonance velocity mapping: clinical application of a new technique.

Magnetic resonance velocity mapping is a new technique which provides a display of velocity within the cardiovascular system at any point of the cardiac cycle. A short field echo sequence with even echo rephasing is used to obtain a signal from rapidly moving blood and a cine display is provided by rapid repetition of the sequence. The amplitude image shows the anatomy, with blood giving a high...

Assessment of Heart Valve Function by Magnetic Resonance Velocity Mapping

Valvular diseases cause an increased hemodynamic load on the heart. Chronic valvular incompetence may lead to impaired myocardial function and eventual progression toward heart failure. Accordingly, current diagnostic modalities aim at the detection of progressing valvular lesions before irreversible changes of the myocardium have developed. Symptomatic patients with severe valvular lesions are...

Magnetic Resonance Phase Velocity Mapping of Cardiac Dyssynchrony

Nuclear magnetic resonance: its clinical application.

Nuclear magnetic resonance (NMR) is a phenomenon in which particular atomic nuclei respond to the application of certain magnetic fields by absorbing or emitting electromagnetic radiation, a phenomenon which was first demonstrated by Bloch, Hansen and Packard in 1946. Its medical application was pioneered by Odeblad, a physicist from Sweden, during the l950s and 1960s (Odeblad and Lindstr#{246}...

magnetic resonance imaging in dentistry

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