Assessing the radiation contamination of large areas using advanced technologies.

Military, disaster management and in many cases civilian tasks include surveying of a given section of terrain that is likely to be contaminated with radioactive materials. Such a measurement series can form the basis for the complete recultivation and decontamination of large areas. This survey can take place after an emergency situation.

Total body irradiation before bone marrow transplantation. Technique and acute toxicity.

Purpose: To evaluate the total body irradiation methods in the National Institute of Oncology between January 1984 and February 1998.

Patients And Methods: One hundred and twenty-four patients underwent total body irradiation prior to bone marrow transplantation in the last 15 years. A special cobalt unit has been used, the dose rate was 6 to 8 cGy/min in the midline of the abdomen.

[Effects of electron radiation on lung tissue in the postoperative irradiation of breast carcinoma].

The changes in lung tissue density arrived during the postoperative irradiation of 21 patients between February, 1984 and March, 1985 were investigated by means of a computer tomograph type Medicor-Pfizer 0100. It was shown that the influence of ionizing radiation produced an increased density of the pulmonary tissue even in case of the most precise radiophysical plan and the optimum energy. In all cases the density measured by CT after the irradiation was higher than before radiotherapy.