[Clinical dosimetric studies of lung tissue heterogenetiy in irradiation on the Rokus and B5M-25 machines].
作者信息
Afanas'ev B P, Kozlov A P, Luk'ianov V P, Rotenberg M Z, Simbirtseva L P
出版信息
Vopr Onkol. 1977;23(8):37-43.
PMID:410160
Abstract
As a result of measurements of radiation doses in the esophagus and of the emerging beam, which were made immediately during radiotherapy, the coefficients of heterogeneity and values of the effective lung density were determined. In mobile telegamma therapy of esophageal tumors the correction for heterogeneity was 1.26 for the upper third of the thoracic esophagus (angula deviation 120 degrees) and 1.44--for the median third (240 degrees). A calculation method is suggested for the medium heterogeneity to be taken into account in individual planning of radiotherapy of the esophagus and lung tumors.
摘要
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