1Aberdeen Biomedical Imaging Centre, School of Medicine & Dentistry, University of Aberdeen, Foresterhill, AB25 2ZD, Aberdeen, United Kingdom, Aberdeen, United Kingdom
A
graph of T1 versus
magnetic field obtained via Fast Field-Cycling (FFC) NMR relaxometry techniques
can be developed into a new diagnostic tool thanks to the information about
molecular dynamics that it provides. In this work, a novel method that
compensates for the environmental fields acting on an FFC relaxometer is analysed,
and applied to acquire measurements in the µT region for the study of much
slower molecular motions, that was not previously possible. The results
acquired from human cartilage indicate motions occurring in a slow time scale (0.1
to 10 ms), which show promise for clinical studies.