Termografické hodnocení radiofrekvenční ablace stentů ex vivo
Authors:
Vladan Bernard 1; Tomáš Andrašina 2
Authors‘ workplace:
Biofyzikální ústav LF MU Brno, Czech Republic
1; Faculty Hospital Brno, Department of Radiology, Brno, Czech Republic
2
Published in:
Lékař a technika - Clinician and Technology No. 4, 2013, 43, 10-13
Category:
Original research
Overview
A common complication of implanted biliary stent is obstruction caused by overgrowing their tissues, often in a term of a few months after their implantation. This complication can be solved by using of the method of radiofrequency tissue ablation, performed by the stent with active electrode and subsequent thermal tissue destruction in neighborhood of this electrode. This heating process was observed in this experiment by using contactless thermography method. Within the experiments were monitored thermal changes of both the stent and the surrounding tissue. The authors also described thermal effect of monopole or bipolar radiofrequency ablation, in the case of direct contact of electrode and the material of the stent.
Keywords:
radiofrequency ablation, stent, termography
Sources
[1] Feldman, M., Scharschmidt, B. F., Sleisenger, M. H. Sleisenger & Fordtran's Gastrointestinal and Liver Disease. 7th ed. Philadelphia: Elsevier Science, 2002.
[2] Steel, A.W., Postgate, A.J., Khorsandi, S., Nicholls, J., Jiao, L., Vlavianos, P., et al. Endoscopically applied radiofrequency ablation appears to be safe in the treatment of malignant biliary obstruction, Gastrointestinal Endoscopy , 2011, vol 73, no. 1, p. 149-153.
[3] Kallis, Y., Phillips, N., Steel, A., Dickinson, R., Nicholls, J., Jiao, L, et al. Radiofrequency Ablation for Biliary Metal Stent Occlusion: Evolution of a Novel Endoscopic Technique and Proof of Concept, Gastrointestinal Endoscopy, 2012, vol 75, no. 4, p. AB377-AB378.
[4] Mukund, A., Arora, A., Rajesh, S., Bothra, P., Patidar, Y. Endobiliary Radiofrequency Ablation for Reopening of Occluded Biliary Stents: A Promising Technique, Journal of Vascular and Interventional Radiology, 2013, vol24, no. 1, p. 142-144.
Labels
BiomedicineArticle was published in
The Clinician and Technology Journal
2013 Issue 4
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