Analysis of the RF Excitation of Endovascular Stents in Small Gap and Overlap Scenarios Using an Electro-Optical E-field Sensor

Conclusion: Electro-optic E-field measurements are a valuable tool for RF safety assessments in both single as well as coupled stents. Significance: RF induced heating of single stents during MRI has been extensively studied. However, in clinical practice often two or more stents are implanted in close proximity which can substantially change the pattern of the scattered electric fields and the localization and intensity of hot spots. In this study a detailed assessment of the coupling of stents during RF excitation is given.
Source: IEEE Transactions on Biomedical Engineering - Category: Biomedical Engineering Source Type: research