A Cvh-Based Computational Female Pelvic Phantom For Radiation Dosimetry Simulation

Background Accurate voxel phantom is needed for dosimetric simulation in radiation therapy for malignant tumors in female pelvic region However most of the existing voxel phantoms are constructed on the basis of Caucasian or non Chinese population Materials and Methods A computational framework for constructing female pelvic voxel phantom for radiation dosimetry was performed based on Chinese Visible Human (CVH) datasets First several organs within pelvic region were segmented from CVH datasets Then polygonization and voxelization were performed based on the segmented organs and a 3D computational phantom is built in the form of a set of voxel arrays Results The generated phantom can be converted and loaded into treatment planning system for radiation dosimetry calculation From the observed dosimetric results of those organs and structures we can evaluate their absorbed dose and implement some simulation studies Conclusion A voxel female pelvic phantom was developed from CVH datasets It can be utilized for dosimetry evaluation and planning simulation which would be very helpful to improve the clinical performance and reduce he radiation toxicity on organ at risk (OAR) Iran J Radiat Res, 2010, 8 (2) 87 91