Abstract:

Over the last few years, intermolecular multiple-quantum coherences (MQCs) have attracted theoretical attention and also caused controversies in the NMR community^[1-3]. Although there are still some theoretical issues which remain to be addressed, intermolecular dipolar interaction effects have lost much of their mystical character and are becoming useful tools in NMR spectroscopy and MR imaging^[2-6]; Recently, we have successfully obtained human tissue double quantum coherence images in 1.5 T scanned^[4,5] and 5-th order MQC images of water phantom on a 9.4 T system^[6].