The esophageal dose constraints protocol protocol since relaxed, given the low incidence of significant esophagitis.. – No patients grade 3 esophagitis. For those who the study show of esophagitis of grade 1 or grade reported 2 an average weight loss of less than 3 percent. In a University of Michigan dose – escalation study, the 3-D radiation therapy, and a non – hypofractionated approach to dose – escalation, Class 1, 2 and 3 esophagitis occurred in 39.5 percent and 2.7 percent of patients.
Calculations predict the probability lung toxicity together with constraints for maximum esophagus and spinal dose, were used in order to personalize the total dose and dose per fraction given to each patient. Doses from 57 to 80.5 Gy were delivered in fraction doses of 2.22 Gy what. Equivalent doses in 2 Gy fractions of 60-100 Gy For those who Preliminary Results:. Continue reading “No patients grade 3 esophagitis.”