The potential of local radiotherapy with intraoperative electron beam irradiation and trans t-tube iridium(192) brachytherapy for the management of carcinoma of the extrahepatic ducts is illustrated by this case report.

Adenocarcinoma, Papillary↗

PubMed1979

Particle radiation therapy: requiem or reveille.

The 1960s and 1970s witnessed a surge of many institutions devoted to electron therapy. Currently, many facilities are adding or have added particle types of radiation to their armamentarium against cancer. The authors review the concepts, problems, and potentials of this form of therapy.

Elementary Particles↗

PubMed1978

Intraoperative radiation of the paraaortic nodes in cancer of the uterine cervix.

Intraoperative electron beam irradiation is being used for the therapeutic and prophylactic treatment of the paraaortic nodes in cancer of the uterine cervix. A Varian 18 meV accelerator is employed at an electron energy setting of 6--18 meV. Special aluminum and lucite collimators allow visualization of treatment area and keep the uninvolved small bowel out of the treatment beam. A one-time dose of 2000 rads is delivered in 4 minutes. The procedure presents no special surgical problems, is well tolerated, and appears as a promising supplement in cases where abdominal exploration for surgical staging of cervical carcinoma is carried out.

Adult↗

PubMed1978

Twice-a-day treatment in the radiotherapeutic management of malignant mixed tumor of the parotid gland: A case report.

A patient with a 2,300 gm malignant mixed tumor of the parotid gland had recurrence 19 days post surgery. The recurrent mass failed to respond to daily fractions of 200 rad conventional irradiation four times per week and actually increased in size. A superfractionation scheme was substituted, employing twice-a-day 200 rad at 4-5½ hours intervals three times a week for 2½ weeks. At the completion of treatment, there was a 50 percent regression of the recurrent tumor mass and a 100 percent regression two weeks post irradiation. A protocol using a twice-a-day treatment is discussed.

Adenoma, Pleomorphic↗

PubMed1978

Preliminary clinical experience with intraoperative radiotherapy.

Intraoperative radiotherapy is the term applied to the irradiation of unresectable tumors, partially resectable tumors, and regional lymph nodes with external beam radiation at the time of surgical exposure. Since only one treatment is given at the time of surgery, one should consider the intraoperative technique as "boost" therapy which may allow us to raise the conventional external beam dose to the tumor by 50 to 100 percent. At Howard University Hospital and Cancer Research Center, seven advanced-stage cancer patients have been treated since 1976 with single doses of electron beam irradiation in the range of 1,300 to 2,000 rad. The preliminary evaluation of these patients has shown no serious acute radiation reactions.

Adult↗

PubMedDate not supplied

Once a week treatments.

Explore the source record for details and available documents.

Adult↗

PubMedDate not supplied

Simple but sophisticated immobilization casts.

Explore the source record for details and available documents.

Head and Neck Neoplasms↗

PubMedDate not supplied

Radiation dose monitoring in a breast cancer patient with a pacemaker: a case report.

A pacemaker-bearing patient with left-sided breast cancer was treated with adjuvant external beam radiation therapy to the intact breast. She was treated via tangential fields and a single anterior supraclavicular field using 6-MV x-rays. The pacemaker, originally in the treatment field, was removed and a new one placed 4 cm outside the radiation field prior to treatment. Silicon diode chamber Keithley-Farmer type 0.6 cc ionization chamber, and lithium fluoride (LiF) (TLD) chips were used to measure, in vivo, the dose to the pacemaker. From all the fields treated, total dose to the pacemaker was 164 cGy by diode measurements, 182 cGy by ionization chamber measurements, and 171 cGy by TLD measurements. The pacemaker functioned normally throughout the course of treatment.

Aged↗