[Criteria for evaluating drug treatment in malignant tumor metastases to the lungs]

The paper deals with the description of a procedure of assessment of the effectiveness of chemotherapy of pulmonary metastases on the basis of changes of metastasis size in the course of treatment. Inter-perpendicular diameters of metastases were determined by the formula: (Formula: see text), while spherical modes -- (Formula: see text). In cases of multiple metastases, the sum total of all volumes was calculated; for disseminated ones -- the sum total of the volumes of nodes most distinctly seen in radiograms. Construction of graphs for changes in tumor volume during treatment facilities selection of optimal therapy and provides means for retrospective evaluation of its efficacy.