Sacral Neuromodulation Device Heating During Lumbar and Pelvic Magnetic Resonance Imaging-a Phantom Study
| Autor: | Stephen E. Jones, Adrienne Quirouet, Pallab K. Bhattacharyya, Bradley C. Gill, Elodi Dielubanza, Howard B. Goldman |
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| Rok vydání: | 2017 |
| Předmět: |
Urology
Lumbosacral Plexus 030232 urology & nephrology Electric Stimulation Therapy Imaging phantom 03 medical and health sciences 0302 clinical medicine Lumbar Lower Urinary Tract Symptoms Medicine Humans Lead (electronics) Pelvic MRI medicine.diagnostic_test business.industry Phantoms Imaging Magnetic resonance imaging Anatomy Equipment Design Hyperthermia Induced Magnetic Resonance Imaging Electrodes Implanted body regions Sacral nerve stimulation 030220 oncology & carcinogenesis Nuclear medicine business |
| Zdroj: | Urology. 107 |
| ISSN: | 1527-9995 |
| Popis: | Objective To evaluate radiofrequency-induced temperature rises associated with performing lumbar and pelvic magnetic resonance imaging (MRI) studies with an implanted sacral neuromodulation device using a phantom model. Materials and Methods An accepted phantom model of radiofrequency-induced heating in human tissue was used to measure the temperature rise in the stimulator lead electrodes and impulse generator under the conditions used during routine clinical lumbar and pelvic MRIs in a 1.5Tesla MRI scanner. Testing configurations included an intact device (tined lead connected to generator), an intact lead, and a lead fragment (model of lead fracture). Variations in the position of the phantom relative to the scanner were also tested. Results During testing with the intact device or the lead fragment no significant heating was detected. In contrast, the isolated intact lead model showed heating up to 5°C. Conclusion These tests provide preliminary evidence that the risk of heating is low for clinical lumbar and pelvic MRI at 1.5-Tesla with an intact sacral neuromodulation device system and with a fractured lead. However, there is a significant temperature change in the intact lead model. |
| Databáze: | OpenAIRE |
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