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A simple apparatus for safety assessment of magnetically induced torque on active implantable medical devices (AIMDs) under 1.5 T and 3.0 T MRI

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Abstract
Objective Our goal is to design and validate a simple apparatus for the safety assessments of magnetically induced torques by four active implantable medical devices (AIMDs) in 1.5 T and 3.0 T magnetic resonance imaging (MRI) environments. Materials and methods A simple apparatus was designed to measure the magnetically induced torque. Before testing the apparatus, its effectiveness was first evaluated with a commercially available weights. The torque values of the four AIMDs, namely implantable cardioverter defibrillator (ICD), pacemaker, bone conduction implant, and cochlear implant, under 1.5 T and 3.0 T MRI environments were measured and compared with established international standard. Results The ICD, pacemaker, bone conduction implant, and cochlear implant had average torques of 1.405, 0.255, 9.460, and 5.490 N center dot cm under 1.5 T MRI and 2.950, 0.668, 14.618, and 11.484 N center dot cm under 3.0 T MRI, respectively. Discussion The apparatus developed in this study was verified to be feasible for measuring magnetically induced torques, with tests on four types of AIMDs under 1.5 T and 3.0 T MRI environments. Although the designed structure is simple, the apparatus was shown to measure torque values of AIMDs under MRI accurately.
Author(s)
서효창이용관주세경
Issued Date
2021
Type
Article
Keyword
MRISafetyAIMDStandard
DOI
10.1007/s10334-021-00921-4
URI
https://oak.ulsan.ac.kr/handle/2021.oak/8919
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_proquest_miscellaneous_2505362940&context=PC&vid=ULSAN&lang=ko_KR&search_scope=default_scope&adaptor=primo_central_multiple_fe&tab=default_tab&query=any,contains,A%20simple%20apparatus%20for%20safety%20assessment%20of%20magnetically%20induced%20torque%20on%20active%20implantable%20medical%20devices%20(AIMDs)%20under%201.5%20T%20and%203.0%20T%20MRI&offset=0&pcAvailability=true
Publisher
MAGNETIC RESONANCE MATERIALS IN PHYSICS BIOLOGY AND MEDICINE
Location
독일
Language
한국어
ISSN
0968-5243
Citation Volume
34
Citation Number
5
Citation Start Page
767
Citation End Page
774
Appears in Collections:
Engineering > Medical Engineering
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