Adaption of generic anatomic organ models on patient specific data sets

Abstract

Anatomical voxel models are used for example for dosimetric assessment and numerical field calculations. For best matching between model's and patient's properties an accurate model should be created by Magnetic Resonance Imaging or Computer Tomography images for every patient. Due to complexity, time and costs this is not always possible. In contrast 3D laser scanning is a fast and easy method to gain information about a patient's body surface. In this work generic organ models are developed to fit into the laser scan envelope of any patient. One model set was processed as to fit to the volume reference values of the International Commission on Radiological Protection's of six different ages. To accomplish a more realistic shape, orthogonal scaling factors are used to simulate growth in three different directions.