Radiofrequency lesion generation and its effect on tissue impedance.
The method of radiofrequency heat lesion generation is reviewed with specific reference to the dorsal root entry zone. Experimental data on the impedance of electrolytic media as a function of temperature are reported, and their relation to what should be observed during radiofrequency lesioning in the body is commented upon. The future utility of impedance monitoring is discussed as well as possible implications of bipolar lesion electrode systems.
Cosman
E R
ER
Department of Physics, Massachusetts Institute of Technology, Cambridge.
Rittman
W J
WJ
Nashold
B S
BS
Makachinas
T T
TT
D000818:Animals; D004566:Electrodes; D004574:Electromagnetic Fields; D055590:Electromagnetic Phenomena; D006358:Hot Temperature; D008991:Monitoring, Physiologic; D011846:Radio Waves; D013126:Spinal Nerve Roots / Q000503:physiopathology*