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Software-based simulation for preprocedural assessment of braided stent sizing: a validation study.

Krishna Chaitanya Joshi1, Ignacio Larrabide2, Ahmed Saied3

  • 11Department of Neurosurgery, Rush Medical Center, Chicago, Illinois.

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Summary
This summary is machine-generated.

Software simulation accurately predicts braided self-expanding stent length changes for intracranial aneurysms. This aids in selecting optimal stent size for improved patient outcomes.

Keywords:
aneurysmbraided stentssoftware simulationvascular disorders

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Area of Science:

  • Neurosurgery
  • Medical Imaging
  • Biomedical Engineering

Background:

  • Wide-necked intracranial aneurysms pose treatment challenges.
  • Braided self-expanding stents are used for aneurysm treatment.
  • Accurate stent sizing is crucial for effective aneurysm occlusion.

Purpose of the Study:

  • To validate a software-based simulation for preassessment of braided self-expanding stents.
  • To evaluate the accuracy of simulated stent length compared to actual measurements.
  • To determine if software simulation can aid in stent selection for intracranial aneurysms.

Main Methods:

  • Retrospective, observational, single-center study of 13 patients.
  • Analyzed pre- and postprocedural angiographic studies.
  • Used ANKYRAS software to compare nominal length (NL), simulated length (SL), and measured length (ML) of stents.

Main Results:

  • Actual measured stent length (ML) was often less than the manufacturer's nominal length (NL).
  • Software-simulated length (SL) showed significantly lower error compared to nominal length (NL) when compared to ML (p < 0.05).
  • Mean squared error for SL vs. ML was -6.14, and for NL vs. ML was -22.2.

Conclusions:

  • Software-based simulation is a safe and effective tool for preassessment.
  • Accurate calculation of stent length change aids in choosing the right stent size.
  • This technology can improve stent placement in complex intracranial vasculature.