Microwave prostatic hyperthermia: Interest of urethral and rectal applicators combination -- Theoretical study and animal experimental results
- Univ. des Sciences et Technologies de Lille, Villeneuve D`Ascq (France)
- Centre Oscar Lambret, Lille (France)
- INSERM, Lille (France)
Microwave thermotherapy systems used for benign prostatic hyperplasia treatment generally operate with urethral or rectal applicator to deliver the microwave energy in the prostate. This technique does not allow an efficient heating of all the gland particularly in the case of large adenoma or when the treatment is limited to only one heating session. A solution to this problem is given by using simultaneously the rectal and urethral applicators. A complete 915-MHz microwave thermotherapy system is presented with two applicators which can operate independently or simultaneously to deliver the microwave energy in the prostate. Electromagnetic and thermal modeling have been developed for the applicator antenna optimization, to calculate the specific absorption rate (SAR) and the thermal pattern in the prostate for each applicator alone and when they operate together in phase. Different canine experiments have been performed to prove the interest of using the two applicators simultaneously as compared when they operate alone. Histological examination cuts of the prostate gland after heating have been carried out.
- OSTI ID:
- 398132
- Journal Information:
- IEEE Transactions on Microwave Theory and Techniques, Vol. 44, Issue 10Pt2; Other Information: PBD: Oct 1996
- Country of Publication:
- United States
- Language:
- English
Similar Records
Histopathological observations in the canine prostate treated by local microwave hyperthermia
Methodology for biologically-based treatment planning for combined low-dose-rate (permanent implant) and high-dose-rate (fractionated) treatment of prostate cancer