NSF/FDA Scholars: Computer Modeling of EM Energy Deposition within Human Subjects under Various RF Sources

NSF/FDA 学者：各种射频源下人体体内电磁能量沉积的计算机模型

• 批准号: 0332957
• 负责人: Ji Chen
• 金额: $ 9.82万
• 依托单位: University of Houston
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-03-01 至 2007-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0332957&HistoricalAwards=false
• 关键词: NSF; FDA; Scholars; Computer; Modeling

0332957ChenThis work is supported under the guidelines of the NSF/FDA Scholar-in-Residence at FDA Program (SIR). SIR is an interagency partnership for the investigation of scientific and engineering issues concerning emerging trends in medical device technology and is designed to enable investigators in science, engineering, and mathematics to develop research collaborations within the intramural research environment at the FDA.The investigation includes two related projects to utilize computer software packages for analyzing the absorption of radiofrequency (RF) electromagnetic energy in humans exposed to emissions from certain RF transmitters. The first project deals with the characterization and development of realistic human models for assessing safety with respect to exposure of pregnant women and children to certain types of RF electronic surveillance devices, such as those used in department stores. The goal of the second project is to characterize the uncertainty in analyzing exposure to RF devices such as cellular telephones using a recently developed model of the human head that is now being widely used. No human subjects are involved in the investigation as data is available in an existing and extensive data base of human images. The researchers will work closely with the Electrophysics Branch of the FDA Center for Medical Devices and Radiological Health (CDRH), and the Principal Investigator is to work full time for two summer months each year of the two year project in the FDA intramural laboratory.The investigation may answer two important questions that currently are points of debate: (1) How does body shape/size/age effect the calculations for specific absorption rate (SAR) of radio frequency energy, and (2) Is the Specific Anthromorphic Mannequin (SAM) head a valid model generally?

0332957Chen 这项工作得到了 NSF/FDA 驻场学者计划 (SIR) 的支持。 SIR 是一个机构间合作伙伴关系，旨在调查有关医疗器械技术新兴趋势的科学和工程问题，旨在使科学、工程和数学领域的研究人员能够在 FDA 的校内研究环境中开展研究合作。该调查包括两个相关项目，利用计算机软件包来分析人体对射频 (RF) 电磁能的吸收情况 某些射频发射器的发射。第一个项目涉及真实人体模型的表征和开发，用于评估孕妇和儿童接触某些类型的射频电子监控设备（例如百货商店中使用的设备）的安全性。第二个项目的目标是使用最近开发的现已广泛使用的人体头部模型来表征分析蜂窝电话等射频设备暴露情况的不确定性。由于数据可在现有的广泛的人类图像数据库中获得，因此没有人类受试者参与调查。研究人员将与 FDA 医疗器械和放射健康中心 (CDRH) 的电物理部门密切合作，首席研究员将在 FDA 壁内实验室的两年项目中每年夏季两个月全职工作。这项研究可能会回答目前争论的两个重要问题：(1) 体形/体型/年龄如何影响射频能量比吸收率 (SAR) 的计算，以及 (2) 特定拟人人体模型 (SAM) 头部通常是一个有效的模型吗？