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Title: Robot-Assisted Antegrade In-Situ Fenestrated Stent Grafting

To determine the technical feasibility of a novel approach of in-situ fenestration of aortic stent grafts by using a remotely controlled robotic steerable catheter system in the porcine model. A 65-kg pig underwent robot-assisted bilateral antegrade in-situ renal fenestration of an abdominal aortic stent graft with subsequent successful deployment of a bare metal stent into the right renal artery. A 16-mm iliac extension covered stent served as the porcine aortic endograft. Under fluoroscopic guidance, the graft was punctured with a 20-G customized diathermy needle that was introduced and kept in place by the robotic arm. The needle was exchanged for a 4 x 20 mm cutting balloon before successful deployment of the renal stent. Robot-assisted antegrade in-situ fenestration is technically feasible in a large mammalian model. The robotic system enables precise manipulation, stable positioning, and minimum instrumentation of the aorta and its branches while minimizing radiation exposure.
Authors:
;  [1] ;  [2] ; ;  [1]
  1. Imperial College Healthcare, St Mary's Hospital, Regional Vascular Unit (United Kingdom)
  2. Hansen Medical (United States)
Publication Date:
OSTI Identifier:
21428552
Resource Type:
Journal Article
Resource Relation:
Journal Name: Cardiovascular and Interventional Radiology; Journal Volume: 32; Journal Issue: 3; Other Information: DOI: 10.1007/s00270-008-9459-5; Copyright (c) 2009 Springer Science+Business Media, LLC and the Cardiovascular and Interventional Radiological Society of Europe (CIRSE); Article Copyright (c) 2008 Springer Science+Business Media, LLC
Country of Publication:
United States
Language:
English
Subject:
62 RADIOLOGY AND NUCLEAR MEDICINE; AORTA; GRAFTS; KIDNEYS; ROBOTS; SWINE; TUBES ANIMALS; ARTERIES; BLOOD VESSELS; BODY; CARDIOVASCULAR SYSTEM; DOMESTIC ANIMALS; EQUIPMENT; MAMMALS; ORGANS; TRANSPLANTS; VERTEBRATES