The Frank Ellis memorial lecture: the use of three-dimensional imaging in gynaecological radiation therapy.

The use of three-dimensional image guidance in radiation therapy has increased dramatically over the past decade. In gynaecological malignancies, three-dimensional image guidance assists with both external beam and brachytherapy treatment planning, increasing the accuracy of dose delivery. During his lifetime, Frank Ellis made significant contributions to gynaecological brachytherapy. This lecture will focus on novel advances in three-dimensional image-guided radiation therapy for cervical cancer, with the ultimate goal of improving outcomes for our patients.