Registration of vascular structures using a hybrid mixture model
Bayer S, Zhai Z, Strumia M, Tong X, Gao Y, Staring M, Stoel B, Fahrig R, Arya N, Maier A, Ravikumar N (2019)
Publication Language: English
Publication Type: Journal article, Original article
Publication year: 2019
Journal
Pages Range: 1–10
URI: https://link.springer.com/article/10.1007/s11548-019-02007-y
DOI: 10.1007/s11548-019-02007
Abstract
Purpose
Morphological changes to
anatomy resulting from invasive surgical procedures or pathology,
typically alter the surrounding vasculature. This makes it useful as a
descriptor for feature-driven image registration in various clinical
applications. However, registration of vasculature remains challenging,
as vessels often differ in size and shape, and may even miss branches,
due to surgical interventions or pathological changes. Furthermore,
existing vessel registration methods are typically designed for a
specific application. To address this limitation, we propose a generic
vessel registration approach useful for a variety of clinical
applications, involving different anatomical regions.
Methods
A
probabilistic registration framework based on a hybrid mixture model,
with a refinement mechanism to identify missing branches (denoted as
HdMM+) during vasculature matching, is introduced. Vascular structures
are represented as 6-dimensional hybrid point sets comprising spatial
positions and centerline orientations, using Student’s t-distributions to model the former and Watson distributions for the latter.
Results
The proposed framework is
evaluated for intraoperative brain shift compensation, and monitoring
changes in pulmonary vasculature resulting from chronic lung disease.
Registration accuracy is validated using both synthetic and patient
data. Our results demonstrate, HdMM+ is able to reduce more than 85%" role="presentation">85%
of the initial error for both applications, and outperforms the
state-of-the-art point-based registration methods such as coherent point
drift and Student’s t-distribution mixture model, in terms of mean surface distance, modified Hausdorff distance, Dice and Jaccard scores.
Conclusion
The proposed registration
framework models complex vascular structures using a hybrid
representation of vessel centerlines, and accommodates intricate
variations in vascular morphology. Furthermore, it is generic and
flexible in its design, enabling its use in a variety of clinical
applications.
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How to cite
APA:
Bayer, S., Zhai, Z., Strumia, M., Tong, X., Gao, Y., Staring, M.,... Ravikumar, N. (2019). Registration of vascular structures using a hybrid mixture model. International Journal of Computer Assisted Radiology and Surgery, 1–10. https://doi.org/10.1007/s11548-019-02007
MLA:
Bayer, Siming, et al. "Registration of vascular structures using a hybrid mixture model." International Journal of Computer Assisted Radiology and Surgery (2019): 1–10.
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