Manke, Christoph and Nitz, Wolfgang R. and Lenhart, Markus and Voelk, Markus and Geissler, Angela and Feuerbach, Stefan and Link, Johann (2000) Magnetic resonance monitoring of stent deployment - In vitro evaluation of different stent designs and stent delivery systems. INVESTIGATIVE RADIOLOGY, 35 (6). pp. 343-351. ISSN 0020-9996
Full text not available from this repository. (Request a copy)Abstract
RATIONALE AND OBJECTIVES. TO evaluate MR imaging features of commercially available stents before, during, and after in vitro deployment as a step toward MR-guided stent deployment. METHODS. Fourteen stents were deployed in a phantom under MR monitoring at 1.5 T by using a gradient-echo sequence. Device visibility was rated on a four-point scale (excellent, fair, poor, not visible). RESULTS. The Memotherm stent and the rolling membrane (RM) Wallstent showed excellent stent visibility and at least fair scores for artifact-induced narrowing of the stent lumen. Three stents (Palmaz, AVE, Easy Wallstent) showed excellent visibility of the stent but no visible lumen. Five stents (Strecker, Accuflex, Hemobahn, Passager, Sinus) displayed fair visibility. The delivery catheters of four stent systems (Smart, Vascucoil, Symphony, ZA) displayed severe black hole artifacts. CONCLUSIONS. The imaging features of several stent systems might be suitable for MR-guided intervention. The Memotherm and the Wallstent RM combine good visibility of the stent and the lumen.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ENDOVASCULAR INTERVENTIONS; VASCULAR INTERVENTIONS; MR-ANGIOGRAPHY; FIELD-STRENGTH; PLACEMENT; CATHETERS; ARTIFACTS; FERROMAGNETISM; VISUALIZATION; ANGIOPLASTY; magnetic resonance, guidance; magnetic resonance, rapid imaging; stents and prostheses |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Röntgendiagnostik |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 26 Apr 2022 13:37 |
| Last Modified: | 26 Apr 2022 13:37 |
| URI: | https://pred.uni-regensburg.de/id/eprint/42432 |
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