Radiofrequency heating and magnetically induced displacement of dental magnetic attachments during 3.0 T MRI
نویسندگان
چکیده
منابع مشابه
Issues with radiofrequency heating in MRI
To the Editor: In recent years, the use of magnetic resonance imaging (MRI) has been increasing in patients with implanted devices, such as cardiac pacemakers and neurostimulators, which used to preclude the use of MRI owing to patient safety and device malfunction concerns.(1-6) In the past few years, however, more of these implant devices have become MR-compatible and can function properly du...
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The safety of metallic spinal implants in magnetic resonance imaging (MRI) performed using ultrahigh fields has not been established. Hence, we examined whether the displacement forces caused by a static magnetic field and the heating induced by radiofrequency radiation are substantial for spinal implants in a 7 T field. We investigated spinal rods of various lengths and materials, a screw, and...
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SORIN POROJAN1, LILIANA POROJAN2* 1 V. Babes University of Medicine and Pharmacy Timisoara, Faculty of Dentistry, Department of Oral Rehabilitation, Specialization Dental Technology, 9 Revolutiei 1989 Blv, Timisoara, Romania 2 Faculty of Dentistry, V. Babes University of Medicine and Pharmacy Timisoara, Department of Prostheses Technology, Specialization Dental Technology, 9 Revolutiei 1989 Blv...
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BACKGROUND Failure to achieve properly localized, permanent tissue destruction is a common cause of arrhythmia recurrence after cardiac ablation. Current methods of assessing lesion size and location during cardiac radiofrequency ablation are unreliable or not suited for repeated assessment during the procedure. MRI thermography could be used to delineate permanent ablation lesions because tiss...
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ژورنال
عنوان ژورنال: Dentomaxillofacial Radiology
سال: 2012
ISSN: 0250-832X,1476-542X
DOI: 10.1259/dmfr/17778370