The Clinical Potential of NMR Imaging

摘要: The possible images which may be derived from an object form the set of all mappings spatial distribution one or more its properties. NMR is a resonant RF absorption and re-emission phenomenon exhibited by magnetic nuclei when subjected to field. Exploiting what probably last available window into body imaging uses radiowaves with wavelength between 20 150 metres create entirely new class image where usual limitation that incident radiation shall less than smallest feature resolved removed. This done taking advantage Lauterbur (1) called induced local interactions. He pointed out application field gradient uniquely localises interaction at particular frequency. resulting signal on frequency analysis gives graph proton concentration against distance. By making several radially disposed line projections density combining these well known algorithms used in computed tomography cross-sectional can produced.