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
| Autor: | Segyeong Joo, Hyo-Chang Seo, Yongkwan Lee |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Pacemaker
Artificial Materials science Radiological and Ultrasound Technology medicine.diagnostic_test Equipment Safety medicine.medical_treatment Biophysics Magnetic resonance imaging equipment and supplies Implantable cardioverter-defibrillator Magnetic Resonance Imaging 030218 nuclear medicine & medical imaging Magnetically-Induced Torque 03 medical and health sciences 0302 clinical medicine Bone conduction Cochlear Implants Torque Cochlear implant medicine Radiology Nuclear Medicine and imaging Implant Biomedical engineering |
| Zdroj: | Magma (New York, N.Y.). 34(5) |
| ISSN: | 1352-8661 |
| Popis: | 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. 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. The ICD, pacemaker, bone conduction implant, and cochlear implant had average torques of 1.405, 0.255, 9.460, and 5.490 N·cm under 1.5 T MRI and 2.950, 0.668, 14.618, and 11.484 N·cm under 3.0 T MRI, respectively. 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. |
| Databáze: | OpenAIRE |
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