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Myocardial Perfusion Assessed By Nuclear Magnetic Resonance

1987; Springer Nature; Linguagem: Inglês

10.1007/978-94-009-3369-9_14

2542-8373

X. H. Krauss, Albert de Roos, Sandra Postema, Joost Doornbos, E. E. van der Wall, A E van Voorthuisen, Albert V.G. Bruschke,

Advanced MRI Techniques and Applications

In 1946 the groups of Bloch (6) and Purcell (35) described independently from each other a phenomenon which is known as Nuclear Magnetic Resonance. It appeared that certain atomic nuclei, when placed in a strong magnetic field, absorb electromagnetic waves of a particular frequency (radiowaves, 1–100 MegaHerz) and re-emit some of the absorbed energy in the form of radiosignals with the same frequency. In fact this resembles the resonance of a tuning fork when the right tone is struck.