{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,11]],"date-time":"2026-07-11T17:26:37Z","timestamp":1783790797793,"version":"3.55.0"},"reference-count":38,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2019,6,10]],"date-time":"2019-06-10T00:00:00Z","timestamp":1560124800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Magnetic Resonance in Med"],"published-print":{"date-parts":[[2019,11]]},"abstract":"<jats:sec><jats:title>Purpose<\/jats:title><jats:p>This paper investigates the RF\u2010induced heating for multiple adjacent orthopedic implants under MRI at 1.5T and 3T exposure. When multiple implants are closely spaced to each other, the interactions between the implants may affect the RF\u2010induced heating. Traditional RF\u2010induced heating labeling is often only applicable to configurations of an individual implant, and is not applicable for multi\u2010implant configurations. Therefore, the aim of this study is to evaluate the effects of multiple orthopedic implants on RF\u2010induced heating and to propose potential appropriate instructions for safe scanning of multi\u2010implantable orthopedic implants.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Typical plate and nail implants were used as examples. The effects of implant configuration, relative positions, and number of implants were investigated. Numerical simulations were conducted using full\u2010wave electromagnetic simulation software. Experimental measurements at 1.5 T were performed to validate the numerical results.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Numerical results indicate that, due to device interaction, the RF\u2010induced heating of multiple medical implants can be significantly different from that of a single implant. The measured temperature rise for multiple devices could be 2.7 times larger than that of a single implant.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Our results confirm that RF\u2010induced heating of multiple implants can be quite different, and do not follow simple superposition of the results from single devices. Instructions for safe scanning of individual orthopedic devices would not be applicable to multi\u2010implant configurations.<\/jats:p><\/jats:sec>","DOI":"10.1002\/mrm.27817","type":"journal-article","created":{"date-parts":[[2019,6,11]],"date-time":"2019-06-11T05:30:34Z","timestamp":1560231034000},"page":"1848-1858","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":31,"title":["Computational and experimental investigation of RF\u2010induced heating for multiple orthopedic implants"],"prefix":"10.1002","volume":"82","author":[{"given":"Ran","family":"Guo","sequence":"first","affiliation":[{"name":"Department of Electrical and Computer Engineering University of Houston Houston Texas"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8998-9561","authenticated-orcid":false,"given":"Jianfeng","family":"Zheng","sequence":"additional","affiliation":[{"name":"Department of Electrical and 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