Feasibility of electromagnetically guided transjugular intrahepatic portosystemic shunt procedure.
Objectives:To develop an electromagnetic navigation technology for transjugular intrahepatic portosystemic shunt (TIPS) creation and translate it from phantom to anin-vivolarge animal setting. Material and methods:A custom-designed device for TIPS creation consisting of a stylet within a 5 French ca...
| Publicado en: | Minimally Invasive Therapy & Allied Technologies Vol. 26; no. 1; pp. 15 - 23 |
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| Autores principales: | , , , , , , , , , , , , , , |
| Formato: | diagnostic images pictorial research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
Feb2017
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| Acceso en línea: | Ver este registro en EBSCOhost |
| Sumario: | Objectives:To develop an electromagnetic navigation technology for transjugular intrahepatic portosystemic shunt (TIPS) creation and translate it from phantom to anin-vivolarge animal setting. Material and methods:A custom-designed device for TIPS creation consisting of a stylet within a 5 French catheter as well as a software prototype were developed that allow real-time tip tracking of both stylet and catheter using an electromagnetic tracking system. Feasibility of navigated TIPSS creation was tested in a phantom by two interventional radiologists (A/B) followed byin-vivotesting evaluation in eight domestic pigs. Procedure duration and number of attempts needed for puncture of the portal vein were recorded. Results:In the phantom setting, intervention time to gain access to the portal vein (PV) was 144 ± 67 s (A) and 122 ± 51 s (B), respectively. In thein-vivotrials, TIPS could be successfully completed in five out of eight animals. Mean time for the complete TIPS was 245 ± 205 minutes with a notable learning curve towards the last animal. Conclusions:TIPS creation with the use of electromagnetic tracking technology proved to be feasiblein-vitroas well asin-vivo. The system may be useful to facilitate challenging TIPSS procedures. |
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