Regrowth delay analysis of irradiated tumors in the curative dose region

Purpose: To develop a method to analyze regrowth delay times, including cured tumors.Methods and Materials: Regrowth delay measured in the in vitro squamous cell carcinoma megacolony system following fractionated irradiation was analyzed using two different approaches. A conventional regrowth delay analysis based on means or medians of dose groups was contrasted with a one-step procedure using the inverse of individual regrowth delay times,...