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Handbook of Anatomical Models for Radiation Dosimetry will be available soon! Welcome to the home page of The Consortium of Computational Human Phantoms (CCHP)! CCHP is an international initiative with an ultimate goal of promoting collaborative research in computational modeling of the human body for computations of medical and occupational organ doses related to exposure to ionizing radiation and other environmental stimuli.Human phantoms or models have long been used in nuclear medicine and radiation protection dosimetry. The history of the phantom development can be traced back to 1960s when stylized models of human were defined at Oak Ridge National Laboratory to depict the so-called ICRP Reference Man for the Society of Nuclear Medicine¡¯s Medical Internal Radiation Dose (MIRD) Committee. The past decade, however, has seen a paradigm shift from stylized models to voxelized models that are constructed from tomographic images. The International Commission on Radiological Protection (ICRP) has issued its 2005 Recommendations (draft) that call for more realistic radiation protection dosimetry studies using the tomographic models. A special session "Tomographic Models for Radiation Protection Dosimetry" was organized during the Monte Carlo 2005 Topical Meeting in Chattanooga, TN, USA, April 17-21, 2005. A group of international researchers gathered to share the latest research and development. It was recognized that, although tremendous progress in modeling had been made, our works to date were largely isolated, and collaborations at any level were sparse. As a result, resources were not utilized efficiently. A large number of technical and programmatic questions remain unanswered: What is the ideal way of modeling the human bodies for various computational applications including modeling of organ/body motions? Where do we want to be in 5 or 10 years from today? Although more than 20 full or partial -body tomographic phantoms or studies have been reported and perhaps hundreds of papers have been published, there is no concerted effort to perform intercomparison and standardization in terms of the methodologies used in image processing and Monte Carlo simulation. Furthermore, there is currently no effective mechanism to facilitate sharing of data as well as tools that are necessary to use the data. This is the reason CCHP has been formed. It is our hope that CCHP will provide a home for all of us who share common interests, either in developing the models or in using them. If you are not involved with ionizing radiation, that is OK. The CCHP would like to stimulate interactions with researchers in other fields including electromagnetic radiation dosimetry, surgical planning, automobile safety studies, drug discovery, to name just a few. So, we would like to invite you to actively participate in this consortium. In the future, the CCHP will establish a center of resources at this website www.virtualphantoms.org and will host a series of activities including workshops, research proposals, and publications. The 2005 meeting in Chattanooga, TN is one of the first events to come. If you are interested in becoming a member of the CCHP, please email or post an official letter of interest to Dr. X. George Xu [xug2@rpi.edu] who is the contact person of the CCHP Initiative. Thank you. Founding members of The Consortium of Computational Human Phantoms (CCHP):
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