chapter  12
32 Pages

Pregnant Female/Fetus Computational Phantoms and the Latest RPI-P Series Representing 3, 6, and 9 Month Gestational Periods

ByX. George Xu, Chengyu Shi, Michael G. Stabin, Valery Taranenko

Prior to 1995 ...............................................................................................................306 12.3 Developments by Others Since 1995.......................................................................308 12.4 Development at Rensselaer Polytechnic Institute on a CT-Based Pregnant

Female Computational Phantom in 2004 ..............................................................309 12.5 Development at Rensselaer Polytechnic Institute on the RPI-P3,

RPI-P6, and RPI-P9 Phantoms ................................................................................. 315 12.5.1 Materials and Methods ............................................................................... 316

12.5.1.1 Selection of Reference Anatomical Data ................................... 317 12.5.1.2 The Fetus .......................................................................................317 12.5.1.3 The Uterus and Placenta .............................................................317 12.5.1.4 The Breasts ....................................................................................318 12.5.1.5 The Rest of the Body ....................................................................318 12.5.1.6 Voxelization ...................................................................................322 12.5.1.7 Tissue Compositions ....................................................................323 12.5.1.8 Monte Carlo Modeling ................................................................ 323

12.6 Results and Discussions ........................................................................................... 326 12.6.1 Organs Volumes vs. Reference Data ......................................................... 326 12.6.2 Visual Inspection of the Anatomy .............................................................330 12.6.3 Analysis of Organ Centroids ......................................................................330