Fig. 1From: Clinical value of 3'-deoxy-3'-[18F]fluorothymidine-positron emission tomography for diagnosis, staging and assessing therapy response in lung cancerSummary of [18F]FLT uptake mechanism into cells. [18F]FLT sequestration in the cell after its phosphorylation by thymidine kinase 1 (TK1) into [18F]FLT monophosphate ([18F]FLT-MP), [18F]FLT diphosphate ([18F]FLT-DP) and [18F]FLT triphosphate ([18F]FLT-TP)Back to article page