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  • Title: [Analysis of the reproducibility of conditions of intracavitary irradiation of patients with cervix cancer].
    Author: Chekhonadskiĭ VN, Spasokukotskaia ON, Merkle K, Strel'nitskaia TA, Morozova SIu.
    Journal: Med Radiol (Mosk); 1986 Nov; 31(11):43-7. PubMed ID: 3784826.
    Abstract:
    The paper is concerned with the results of an analysis of reproducibility of conditions for intracavitary irradiation of 20 cervical cancer patients using metracolpostat, a combined therapeutic endostat consisting of 3 tubes: the central one to introduce radiation sources into the cervical canal and cavity of the uterus and 2 lateral ones with ovoids to deliver the sources to the vaults of the vagina. Topometric investigations for each patient were performed 4 times: before the first session of fractionated intracavitary irradiation with high activity 252Cf sources using the ANET-B unit and after each session of irradiation. It was shown that discordances between distances from the central endostat to the right and left lateral ovoids determined during roentgenotopometric preparation of each patient and taken as a basis of dosimetric design, and discordances between these distances determined as a result of roentgenotopometric control after each laying, are a random value distributed according to the normal law.
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