Research on Construction of Test Environment for Assessment of RF-Induced Heating Effects of Implants
10.12455/j.issn.1671-7104.240031
- VernacularTitle:植入物射频热效应评估的测试环境构建研究
- Author:
Yonghua LI
1
,
2
;
Lingfeng LU
;
Jing WANG
;
Chengling LI
;
Pengfei YANG
;
Zhichao WANG
;
Dajing WU
;
Xun LIU
;
Sheng HU
Author Information
1. 上海市医疗器械检验研究院,上海市,201318
2. 国家药品监督管理局医用电气设备重点实验室,上海市,201318
- Keywords:
implants;
magnetic resonance imaging;
RF-induced heating;
Python
- From:
Chinese Journal of Medical Instrumentation
2024;48(3):281-284,297
- CountryChina
- Language:Chinese
-
Abstract:
In magnetic resonance examination,the interaction between implants and the radio frequency(RF)fields induces heating in human tissue and may cause tissue damage.To assess the RF-induced heating of implants,three steps should be executed,including electromagnetic model construction,electromagnetic model validation,and virtual human body simulations.The crucial step of assessing RF-induced heating involves the construction of a test environment for electromagnetic model validation.In this study,a hardware environment,comprised of a RF generation system,electromagnetic field measurement system,and a robotic arm positioning system,was established.Furthermore,an automated control software environment was developed using a Python-based software development platform to enable the creation of a high-precision automated integrated test environment.The results indicate that the electric field generated in this test environment aligns well with the simulated electric field,making it suitable for assessing the RF-induced heating effects of implants.
