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Related Experiment Video

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Live Imaging of Mouse Secondary Palate Fusion
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Fusion Imaging for EVAR with Mobile C-arm.

Adrien Kaladji1, Alexandre Villena2, Remy Pascot2

  • 1Rennes University Hospital, Centre of Cardiothoracic and Vascular Surgery, Rennes, France; INSERM, U1099, Rennes, France; University Rennes 1, Signal and Image Processing Laboratory (LTSI), Rennes, France.

Annals of Vascular Surgery
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Fusion imaging using a mobile C-arm in standard operating rooms is feasible, reducing contrast agent use and operation time for endovascular aneurysm repair (EVAR). This technique offers an alternative to hybrid rooms for improved patient outcomes.

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Area of Science:

  • Medical Imaging
  • Endovascular Surgery
  • Interventional Radiology

Background:

  • Fusion imaging, crucial for endovascular navigation, is typically confined to specialized hybrid operating rooms.
  • This study investigates the feasibility of employing fusion imaging with a mobile C-arm in conventional operating rooms.

Purpose of the Study:

  • To evaluate the feasibility and clinical utility of fusion imaging with a mobile C-arm and angionavigation station in a conventional operating room setting.
  • To assess the impact on procedure efficiency and resource utilization for endovascular aortic repair (EVAR).

Main Methods:

  • A prospective study involving 54 patients undergoing aortic stent graft procedures using a mobile C-arm and angionavigation station.
  • Preoperative 3D CT/perioperative 2D fluoroscopy fusion imaging was performed with automatic registration.
  • Outcomes including contrast dose, operation time, and fluoroscopy time were compared to a control group.

Main Results:

  • Fusion imaging achieved a 95.5% success rate (170 out of 178 registrations).
  • In EVAR procedures, fusion imaging significantly reduced contrast agent volume (42.3 vs. 81.2 mL) and operation time (114 vs. 140.8 min) compared to controls.
  • No significant difference in fluoroscopy time was observed between the groups.

Conclusions:

  • Fusion imaging is feasible in conventional operating rooms using a mobile C-arm, providing an alternative to hybrid rooms.
  • The angionavigation system shows potential to facilitate EVAR procedures, with reduced contrast and shorter operation times.
  • Further randomized studies are warranted to confirm clinical benefits.