Method and apparatus for the reconstruction of nuclear magnetic resonance images

摘要

In NMR imaging method and apparatus the free induction signal obtained from a slice in an object is detected in a quadrature receiver and is modulated in a modulator and then displayed in a video display and photographed by a camera. The photograph is viewed in coherent light and the image represents the Fourier transformation of the free induction signal and hence is an image of the NMR spin density distribution of selected nuclei in the slice. As an alternative, modulation may be produced by providing a constant offset to the main magnetic field.