Evidence suggests that CT scans to measure lung tumors can be unreliable. This could potentially lead patients and doctors to believe the cancer is growing when it’s not.
A new study found that changes of up to 10 percent can happen simply as a result of the inherent variability of CT imaging.
According to Reuters:
“[The study] … is the first to test how reliable lung cancer scans are — work that’s long overdue, experts say, because CT scans have already become the gold standard for measuring cancer growth and treatment response.”