Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition
9 May 2026 – 14 May 2026 · Cape Town, South Africa
530-03-002 ISMRM Abstract

RF-induced Heating of Braided Venous Stents during Expansion: SAR Simulations and Temperature Measurements

Primary: Physics & Engineering - Safety
Secondary: Interventional - MR-Guided Interventions
530-03-002 · Interventional MRI: Tracking, Temperature Mapping, and Image-Guided Therapy · Wednesday, 13 May, 1:40 PM–3:30 PM · Meeting Room 2.60
Keywords: Interventional Devices Safety SAR Rf heating MRI thermometry
Accepted
Lisa Regler 1, Simon Reiss1, Ali C Özen1, Klaus Düring2, Wibke Uller3, Michael Bock1
1Division of Medical Physics, Department of Diagnostic and Interventional Radiology, University Medical Center Freiburg, Freiburg, Germany
2Alaxo GmbH, Wallgau, Germany
3Department of Diagnostic and Interventional Radiology, University Medical Center Freiburg, Freiburg, Germany
Presenting Author: Lisa Regler

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References

1. [1] A. H. Mahnken, K. Thomson, M. De Haan, and G. J. O’Sullivan, “CIRSE standards of practice guidelines on iliocaval stenting,” Cardiovasc. Intervent. Radiol., vol. 37, no. 4, pp. 889–897, 2014, doi: 10.1007/s00270-014-0875-4. [doi]
2. [2] D. Dabir et al., “Physical Properties of Venous Stents: An Experimental Comparison,” Cardiovasc. Intervent. Radiol., vol. 41, no. 6, pp. 942–950, Jun. 2018, doi: 10.1007/s00270-018-1916-1. [doi]
3. [3] L. Moeri, M. Lichtenberg, S. Gnanapiragasam, S. Barco, and T. Sebastian, “Braided or laser-cut self-expanding nitinol stents for the common femoral vein in patients with post-thrombotic syndrome,” J. Vasc. Surg. Venous Lymphat. Disord., vol. 9, no. 3, pp. 760–769, 2021, doi: 10.1016/j.jvsv.2020.08.027. [doi]
4. [4] D. C. Gross, B. W. Scandling, A. R. Leewood, and O. P. Simonetti, “Computational modeling of the thermal effects of flow on radio frequency-induced heating of peripheral vascular stents during MRI,” Biomed. Phys. Eng. Express, vol. 9, no. 6, 2023, doi: 10.1088/2057-1976/ad0398. [doi]
5. [5] S. Reiss, T. Lottner, A. C. Ozen, S. Polei, A. Bitzer, and M. Bock, “Analysis of the RF Excitation of Endovascular Stents in Small Gap and Overlap Scenarios Using an Electro-Optical E-field Sensor,” IEEE Trans. Biomed. Eng., vol. 68, no. 3, pp. 783–792, 2021, doi: 10.1109/TBME.2020.3009869. [doi]
6. [6] S. Reiss et al., “Artifact quantification of venous stents in the MRI environment: Differences between braided and laser-cut designs,” Phys. Medica, vol. 88, pp. 1–8, Aug. 2021, doi: 10.1016/j.ejmp.2021.06.003. [doi]
7. [7] S. Reiss, A. C. Özen, T. Lottner, A. Reichert, A. Massmann, and M. Bock, “Magnetic Resonance Imaging of Venous Stents at 1.5 T: Susceptibility Artifacts and Radiofrequency Shielding,” Invest. Radiol., vol. 55, no. 11, pp. 741–746, Nov. 2020, doi: 10.1097/RLI.0000000000000692. [doi]
8. [8] American Society for Testing and Materials International. Designation: ASTM F2182-19, Standard Test Method for Measurement of Radio Frequency Induced Heating On or Near Passive Implants During Magnetic Resonance Imaging. (2019) doi:10.1520/F2182-19E02. [doi]
9. [9] R. D. Peters and R. M. Henkelman, “Proton-resonance frequency shift MR thermometry is affected by changes in the electrical conductivity of tissue,” Magn. Reson. Med., vol. 43, no. 1, pp. 62–71, 2000.

Cite this abstract

http://echo.ismrm.org/p/ISMRM2026/530-03-002