Assessment of uterus position as a surrogate for high-risk clinical target volume with respect to the applicator position for multiple fractions of brachytherapy in cervical cancer.

摘要

This study shows that there is consistency in inter-fraction applicator position relative to uterus apart from at the tip and, therefore, in situations where high-risk clinical target volume (HRCTV) extends towards uterine fundus, MRI should be used for each fraction of brachytherapy planning to accurately define HRCTV.