PMID: 49094Feb 1, 1975Paper

Semi-deep radiotherapy under high-kilovoltage conditions

Strahlentherapie
H P Rademacher, E Nägele

Abstract

The semi-deep radiotherapy, performed by high-kilovoltage technique, fills a gap between superficial and megavolttherapy, as it renders possible an irradiation in focal depth of 2--4 cm, while largely preserving the deep underlying tissue. Besides which, every form of radiotherapy can be used, as under conventinal conditions. A further advantage exists in the markedly greater skin tolerance and in the low bone absorption of high-kilovoltage radiation, so that much higher focal doses can be achieved. This means that--in superficial processes--the high-voltage technique can replace the much more expensive therapy with accelerated electrons. The RT 305 equipment for high-voltage technique can be especially recommended for the following indications: 1. Skin and limph node metastases as well as tumors and metastases which are not situated deeper than 5 cm below the skin surface. Hereby, thean be exposed up to 8000 R, by small or medium cone. At the same time, in comparison to conventional X-ray therapy, the deep tissue is largely preserved. 2. Postoperative radiotherapy of tumors situated right under the skin. 3. Radiotherapy of inoperable breast cancer. 4. Irradiation of relapses on pre-exposed skin. 5. We assume that the high-volt...Continue Reading

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