What does the Fletcher-Suit applicator for gynecological brachytherapy consist of?

The Fletcher-Suit applicator is specifically designed for gynecological brachytherapy and consists of a tandem and a pair of ovoids. The tandem is a long, slender applicator that is inserted into the uterine cavity, allowing for the precise placement of the radioactive source within the cervix and uterine body. The pair of ovoids is positioned in the vaginal fornices and helps to ensure an even distribution of the radiation dose to the surrounding tissue, particularly to the cervix and upper vagina.

This configuration allows for the effective treatment of locally advanced cervical cancer by facilitating high-dose local radiation treatment while minimizing exposure to adjacent healthy tissues. The combination of the tandem and ovoids allows radiation oncologists to optimize treatment plans based on individual patient anatomy and tumor characteristics, ensuring both effectiveness and safety in gynecological brachytherapy procedures.