Title :
Non-invasive temperature mapping during hyperthermia by MR imaging of molecular diffusion
Author :
LeBihan, D. ; Delannoy, J. ; Levin, R.L.
Author_Institution :
Nat. Inst. of Health, Bethesda, MD, USA
Abstract :
A novel noninvasive temperature imaging technique is presented. It is based on magnetic resonance imaging (MRI) of molecular diffusion, which depends directly on temperature. The method was validated using a doped polyacrylamide gel phantom in which temperature gradients were induced. The agreement between temperatures calculated using diffusion MR images and temperatures recorded with conventional thermocouples was better than 0.5 C degrees .<>
Keywords :
biomedical NMR; biomedical equipment; biothermics; diffusion; temperature distribution; MR imaging; hyperthermia; magnetic resonance imaging; molecular diffusion; polyacrylamide gel phantom; temperature imaging technique; thermocouples;
Conference_Titel :
Engineering in Medicine and Biology Society, 1988. Proceedings of the Annual International Conference of the IEEE
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-0785-2
DOI :
10.1109/IEMBS.1988.94549
