Volumetric data from quantitative PET scans may help improve staging and provide data about survival in patients with non-small cell lung carcinoma, according to a study published in the American Journal of Roentgenology. Researchers conducted PET segmentation of total glycolytic activity using the gradient method, maximum standardized uptake value and metabolic tumor volume, in combination with other methods. At 12-month follow-up, 19 patients had survived while 20 had died, and those who died demonstrated an increase in mean metabolic tumor volume and gradient-based total glycolytic activity, the study said. Bigger studies are needed to validate the findings, researchers said.
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