Treatment of extensive carcinoma of the cervix with the transperineal parametrial butterfly. [Dosimetry efficiency and complications of afterloaded /sup 192/Ir implants]
In advanced carcinoma of the cervix the associated obliteration of the fornices or contracture of the vagina may interfere with accurate placement of conventional intracavitary applicators. Poorly placed applicators fail to irradiate the pelvis homogeneously. Waterman (and others) solved this dilemma by transvaginal radium implants many years ago; however, despite good survival figures, this technique has not gained popularity, presumably because of excessive exposure to personnel. In this paper, we describe a technique which largely eliminates the exposure problem and at the same time improves the homogeneity of pelvic endoradiotherapy. We locate what is in essence a pair of paravaginal interstitial colpostats in both parametria in combination with the usual intrauterine tandem. This helps to distribute the dose laterally, with relative sparing of bladder and rectum. The technique employs a template to guide the insertion into the parametria of a group of 18 gauge hollow steel needles transperineally. Afterloading with /sup 192/Ir is accomplished when the patient has returned to her room (after orthogonal radiography and computer dosimetry). Doses to point B compare very favorably to those at point A.
- Research Organization:
- Univ. of Southern California, Los Angeles
- OSTI ID:
- 6801116
- Journal Information:
- Int. J. Radiat. Oncol., Biol. Phys.; (United States), Journal Name: Int. J. Radiat. Oncol., Biol. Phys.; (United States) Vol. 4:7-8; ISSN IOBPD
- Country of Publication:
- United States
- Language:
- English
Similar Records
Treatment of carcinoma of the uterine cervix by remotely controlled afterloading intracavitary radiotherapy with high-dose rate: a comparative study with a low-dose rate system
High dose rate /sup 60/Co remote afterloading irradiation in cancer of the cervix in Haiti, 1977-1984
Related Subjects
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ABSCESSES
AFTERLOADING
ANIMALS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BIOLOGICAL EFFECTS
BIOLOGICAL RADIATION EFFECTS
BLADDER
BODY
BODY AREAS
CARCINOMAS
DAYS LIVING RADIOISOTOPES
DIGESTIVE SYSTEM
DISEASES
DOSIMETRY
ELECTRON CAPTURE RADIOISOTOPES
FEMALE GENITALS
FEMALES
GASTROINTESTINAL TRACT
HEAVY NUCLEI
IMPLANTS
INFLAMMATION
INTERNAL CONVERSION RADIOISOTOPES
INTERNAL IRRADIATION
INTESTINES
IRIDIUM 192
IRIDIUM ISOTOPES
IRRADIATION
ISODOSE CURVES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LARGE INTESTINE
LOCAL IRRADIATION
MAMMALS
MAN
MEDICINE
MINUTES LIVING RADIOISOTOPES
NECROSIS
NEOPLASMS
NUCLEAR MEDICINE
NUCLEI
ODD-ODD NUCLEI
ORGANS
PATHOLOGICAL CHANGES
PELVIS
PRIMATES
RADIATION DOSE DISTRIBUTIONS
RADIATION EFFECTS
RADIATION SOURCE IMPLANTS
RADIATION SOURCES
RADIOINDUCTION
RADIOISOTOPES
RADIOLOGY
RADIOTHERAPY
RECTUM
SIDE EFFECTS
SPATIAL DOSE DISTRIBUTIONS
THERAPY
URINARY TRACT
UTERUS
VERTEBRATES
WOMEN
YEARS LIVING RADIOISOTOPES