Title :
Studies of microwave thermal balloon angioplasty in rabbits
Author :
Rosen, A. ; Walinsky, P. ; Smith, D. ; Kosman, Z. ; Martinez, A. ; Sterzer, F. ; Presser, A. ; Mawhinney, D. ; Chou, J.-S. ; Goth, P.
Author_Institution :
Thomas Jefferson Univ., Philadelphia, PA, USA
Abstract :
A study of the technique of microwave (2.45 GHz) thermal balloon angioplasty has established a correlation between recorded temperature and observed injury. In addition, a trend pointing toward an inverse relationship between intimal proliferation and medial injury has been observed. Angioplasty was performed on 30 normal New Zealand white rabbits, providing 60 iliac arteries for histopathologic analysis. The angioplasty catheter consists of a 3.0-mm angioplasty balloon with an intrinsic thermocouple placed on the interior surface of the midportion of the balloon. A 0.023-in coaxial cable was used to deliver the microwave power, and a slot antenna configuration was chosen for the radiating element.<>
Keywords :
biological effects of microwaves; biothermics; cardiology; 2.45 GHz; angioplasty catheter; coaxial cable; histopathologic analysis; iliac arteries; intimal proliferation; intrinsic thermocouple; microwave thermal balloon angioplasty; observed injury; rabbits; recorded temperature; slot antenna configuration; Angioplasty; Arteries; Catheters; Coaxial cables; Injuries; Microwave antennas; Microwave theory and techniques; Performance analysis; Rabbits; Temperature;
Conference_Titel :
Microwave Symposium Digest, 1990., IEEE MTT-S International
Conference_Location :
Dallas, TX
DOI :
10.1109/MWSYM.1990.99637
