Assessment of cerebral vascular abnormality quantification technique to aid aneurysm localization

Giulia De Donno*, Kimberley Timmins, Hugo Kuijf

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

Cerebral vascular abnormalities, such as unruptured intracranial aneurysms (UIAs), can result in poor clinical outcomes or death. A statistical atlas of the cerebral vasculature based on healthy controls can be used to identify abnormalities in patients. This atlas was registered to 19 patients with an UIA and 18 healthy controls. Z-score values were computed for the vessels in the Circle of Willis, indicating if and where the vessel radius deviates from the atlas. A color-coded Z-score map was made, to aid radiologists in identifying cerebral vascular abnormalities. Results showed that patients with UIAs have statistically significantly higher Z-score values than healthy controls. In addition, in 17/19 patients the Z-score values at the location of the UIA were statistically significantly higher than elsewhere in the Circle of Willis. This indicates that this technique can both be used to identify patients-at-risk with an abnormal cerebral vasculature, as well as guide visual search for UIAs with 89 % detection sensitivity.

Original languageEnglish
Title of host publicationMedical Imaging 2023
Subtitle of host publicationImage Perception, Observer Performance, and Technology Assessment
EditorsClaudia R. Mello-Thoms, Yan Chen
PublisherSPIE
ISBN (Electronic)9781510660397
DOIs
Publication statusPublished - 2023
EventMedical Imaging 2023: Image Perception, Observer Performance, and Technology Assessment - San Diego, United States
Duration: 21 Feb 202323 Feb 2023

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume12467
ISSN (Print)1605-7422

Conference

ConferenceMedical Imaging 2023: Image Perception, Observer Performance, and Technology Assessment
Country/TerritoryUnited States
CitySan Diego
Period21/02/2323/02/23

Keywords

  • aneurysms
  • anomaly detection
  • detection
  • statistical atlas

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