Kinetics of metastasises growth of breast cancer in liver after the treatment by the transarterial chemioembolization method

37 metastatic liver lesions in 12 patients with breast cancer before and after treatment were analyzed. Evaluation of the treatment results was made separately for each lesion according to RECIST criteria and according to criteria based on the indicator of tumor growth kinetics (reciprocal of doubling time, RDT). The results indicate that the usе of RECIST criteria may underestimate the objective response to treatment. The proposed tumor response evaluation criteria, based on the analysis of tumor growth kinetics proves to be more accurate and respond adequately to the nature of morphological changes in the lesion.