A dosimetric analysis of the rectal doses in intracavitary brachytherapy of carcinoma cervix: A prospective study from a single institute

Conclusion: The modified ICRU rectal point is easier to visualize than ICRU 38 method (100% vs. 80%) for dosimetry, but it underestimates the rectal doses when compared to ICRU 38 rectal point. There needs to be a correction factor applied (25% in our study for Henschke applicator) when evaluating the rectal doses calculated by rectal wire method, to reduce the rectal toxicity.

Source: Journal of Medical Physics - December 10, 2019 Category: Physics Authors: Aparna Suryadevara Anil Kumar Talluri Krishnam Raju Alluri E Vasundhara Sudhakar Kumar N V.N Madhusudhana Sresty Source Type: research