Pre-treatment planning computed tomography scans of ten previously-treated cervix cancer patients will be used. All identifying patient data on these CT image sets will be completely removed. Three RT plans will be created for case: Tomotherapy, step-and-shoot IMRT, and conventional. The University Medical Centre in Utrecht, The Netherlands has implemented IMRT into clinical management of cervical cancer and the Gynecologic Oncology group there has graciously agreed to collaborate on this project by creating optimized step-and-shoot IMRT plans on our ten test cases. The anonymous CT image sets will be stored on data discs which will be sent via bonded courier to the University Medical Centre in Utrecht, The Netherlands for generation of step and shoot IMRT plans. Data to be calculated and collected from all plans include: dose-volume histograms (DVH's) for all target volumes and critical structures. Tumor Control Probability for targets and Normal Tissue Complication Probability for critical structures will be calculated. RT plans created on this protocol will only be used for dose and biophysical model calculation comparisons; no plan will be used to deliver actual radiation treatments to any patient. There will be absolutely no patient contact or interaction on this protocol.