Description:

We are currently investigating the use of PROPELLER and LAVA MRI sequences in the use of cervical brachytherapy planning for a MRI-only workflow as it compares to CT images in regards to geometric distortion. Cervical cancer (Cca) is the fourth most common cancer in women, with survival rates improving with advancements in radiation oncology like brachytherapy (BT). BT uses high-dose radiation to target tumors while sparing surrounding tissues. While CT is the standard for BT planning, it has limitations like poor soft tissue contrast. MRI offers better delineation but faces geometric distortion concerns. These distortions can have dosimetric impacts ranging between 2-7%/mm. This study investigated the comparative reconstruction of applicators, and the distortional impact of MRI to CT in Cca BT.