Image-Guided Gynecologic Brachytherapy

This research is being done to evaluate multimodality imaging, including magnetic resonance imaging-guided therapy (MRT), as a possible treatment for gynecologic cancers. The therapy takes place in the Department of Radiation Oncology at the Johns Hopkins SKCCC. The purpose of this study is to investigate the ability of MRI to successfully guide the placement of the brachytherapy applicator necessary to treat participants' gynecologic cancer. The Investigators want to see if the use of MRI will do a better job of assessing the tumor at the time of brachytherapy than the routinely used CT scan. The Investigators also want to determine if the use of MRI will enable doctors to reduce the radiation dose received by the body during the process of treating the tumor.