Abstract
An extracranial carotid artery aneurysm (ECAA) is a rare vascular pathology that may result in neurologic deficits due to clot formation or mass effect. ECAA progression is difficult to assess due to subtle localized morphological changes observed across longitudinal CT images. In chronic cardiovascular diseases, vascular deformation mapping (VDM) can help disentangle rigid longitudinal alignment from non-rigid deformations, typically considered to correspond to growth. While this assumption is generally valid for aneurysms in the abdomen or brain, it does not hold for peripheral aneurysms, where additional sources of deformation, i.e., neck motion, are present. Therefore, we propose to disentangle these two effects by using a neural fields-based approach for deformation decomposition. To this end, we compose global and local diffeomorphisms obtained using neural fields, enabling continuous deformation analysis in both space and time. Our results reveal smooth and anatomically coherent deformation trajectories while preserving localized deformation patterns that conventional VDM fails to expose. Visualization through deformation and strain heat maps provides intuitive descriptors of regional aneurysm progression, paving the way for person- alized ECAA progression monitoring.
Links to Paper and Supplementary Materials
Main Paper (Open Access Version): https://papers.miccai.org/miccai-2026-sat/paper/STACOM2026_030.pdf
SharedIt Link: Not yet available
SpringerLink (DOI): Not yet available
Supplementary Material: Not Submitted
Link to Open Review
Open Review Page: https://openreview.net/profile?id=~Adri%C3%A1n_B._Rodr%C3%ADguez_Carpio1
BibTex
@InProceedings{RodAdr_MultiStage_MICCAISAT2026,
author = { Rodríguez Carpio, Adrián B. AND van Heeswijk, Roos A.M. AND Hazenberg, Constantijn AND de Borst, Gert J. AND Ranem, Amin AND Wolterink, Jelmer M.},
title = { { Multi-Stage Vascular Deformation Mapping in Extracranial Carotid Aneurysms } },
booktitle = {Medical Image Computing and Computer Assisted Intervention -- MICCAI 2026 Workshops and Challenges},
year = {2026},
publisher = {Springer Nature Switzerland},
volume = {LNCS 17267},
month = {pending},
page = {pending}
}