NMR microscopy--beginnings and new directions.

In this paper we briefly review the origins of NMR microscopy, and in the spirit of the Sir Peter Mansfield Symposium of which this presentation was a part, point out especially Sir Mansfield and his co-workers contributions in this area. We then review some recent studies applying magnetic resonance (MR) microscopy focusing on our own contributions in these regards, in particular with reference to imaging of single neurons and more recent microimaging studies on isolated perfused brain slices. Finally we briefly describe recent preliminary studies on the feasibility of spectroscopic experiments that may be performed at the single cell level, further illustrating the growing scope and potential of magnetic resonance imaging (MRI) in general as a tool for examining biological systems non-invasively.