Two microwave applicators for intracavitary hyperthermia treatment of cancer colli uteri

A new microwave applicator with integrated cooling system for intracavitary hyperthermia of vaginal carcinoma

“…The microwave antenna is made of a semirigid coaxial cable (UT47 Uniform Tubes Inc. Collegeville, Pennsylvania, USA) where the inner conductor is connected to the apex of a brass cone. It has previously been shown (Roos et al 1989) that the cone will extend the heating pattern towards the tip of the antenna. The cone will then act as one part of the antenna whereas the other part of the antenna is a section of the outer conductor of the coaxial cable.…”

“…The typical clinical applications of ICHT include malignant tumours of the prostate (Mendecki et al 1980, Fabre et al 1988, the oesophagus (Kochegarox et al 1981, Li et al 1982, Astrahan et al 1989, Sugimachi and Matsuda 1990, Zhang et al 1990, Hurter et al 1991and Liu et al, 1991, the trachea and bronchus (Leybovich et al 1987), the rectum (Li et al 1984 andBerdov andMenteshasvili 1990), the biliary duct (Wong et al 1988), the bladder (Bichler et al 1990), the cervix (Hand et al 1982, Schorcht et al 1989, Roos et al 1989and Li et al 1991) and the vagina (Li et al 1984, Valdagni et al 1988, Sorbe et al 1990, Zhong et al 1990and Li et al 1991. The treatment of non-malignant diseases like benign prostate hyperplasia (BPH) (Astrahan et al 1989, Baert et al 1990and Sapozink et al 1990) and functional menorrhagia (Phipps et al 1990) has been another interesting and increasing field for the clinical application of intracavitary hyperthermia.…”

Microwave intracavitary applicator using 434 MHz conformal patch antennas for hyperthermia treatment of gynaecological cancers

“…Intracavitary microwave applicators reported for HT include 915 MHz helix coil for treatment of vaginal and rectal cancers [27], 915 MHz coaxial dipole antennas for prostate cancer [28], semi rigid 915 MHz coaxial dipole antenna with metallic reflector for rectal cancer [29], and 434 MHz half wave dipole for transurethral, rectal and prostate cancers [30,31]. Wire-type intracavitary applicators were also reported for HT of gynaecological cancers [29,[31][32][33][34][35][36][37]. Inductive and capacitive applicators with matching interfaces were reported by Franconi et al for intracavitary HT of prostate cancer at 27 MHz [37].…”