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Parameterizing V-notch Weir Equations for Flow Monitoring in a Drainage Control Structure
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Predicting flow diverter sizing using the AneuGuideTM software: a validation study.

Xin Tong1, Yejie Shan2, Xiaochang Leng2

  • 1Neurointervention Center, Beijing Neurosurgical Institute and Beijing Tiantan Hospital, Beijing, China.

Journal of Neurointerventional Surgery
|January 18, 2022
PubMed
Summary
This summary is machine-generated.

Flow diverter stent sizing is challenging due to foreshortening. AneuGuide™ software accurately predicts post-implantation length, improving device selection for aneurysm treatment.

Keywords:
aneurysmflow diverterstent

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Area of Science:

  • Endovascular neurosurgery
  • Medical device technology
  • Biomedical engineering

Background:

  • Stent foreshortening complicates accurate sizing for flow diverter implantation.
  • Precise stent length is critical for effective aneurysm treatment.

Purpose of the Study:

  • To quantify length changes in flow diverter stents post-implantation.
  • To evaluate the accuracy of AneuGuide™ software in predicting stent length.

Main Methods:

  • Retrospective analysis of 101 patients treated with pipeline embolization devices.
  • Utilized AneuGuide™ software to compare labeled length (LL) with measured length (ML) and calculated length (CL).
  • Assessed stent elongation and simulation error, analyzing correlation and consistency using Pearson's test and Bland-Altman plots.

Main Results:

  • Mean stent elongation was 32.6%, with moderate correlation between labeled and measured lengths (ρ=0.74).
  • AneuGuide™ software demonstrated a mean simulation error of 6.6%.
  • High correlation and consistency were found between measured and calculated lengths (ρ=0.96).

Conclusions:

  • Labeled stent length is an unreliable predictor of post-implantation dimensions.
  • AneuGuide™ software shows significant potential for optimizing flow diverter sizing and improving treatment outcomes.