High-performance geometric vascular modelling
Dr Qingde Li Q.Li@hull.ac.uk
Image-based high-performance geometric vascular modelling and reconstruction is an essential component of computer-assisted surgery on the diagnosis, analysis and treatment of cardiovascular diseases. However, it is an extremely challenging task to efficiently reconstruct the accurate geometric structures of blood vessels out of medical images. For one thing, the shape of an individual section of a blood vessel is highly irregular because of the squeeze of other tissues and the deformation caused by vascular diseases. For another, a vascular system is a very complicated network of blood vessels with different types of branching structures. Although some existing vascular modelling techniques can reconstruct the geometric structure of a vascular system, they are either time-consuming or lacking sufficient accuracy. What is more, these techniques rarely consider the interior tissue of the vascular wall, which consists of complicated layered structures. As a result, it is necessary to develop a better vascular geometric modelling technique, which is not only of high performance and high accuracy in the reconstruction of vascular surfaces, but can also be used to model the interior tissue structures of the vascular walls.
This research aims to develop a state-of-the-art patient-specific medical image-based geometric vascular modelling technique to solve the above problems. The main contributions of this research are:
- Developed and proposed the Skeleton Marching technique to reconstruct the geometric structures of blood vessels with high performance and high accuracy. With the proposed technique, the highly complicated vascular reconstruction task is reduced to a set of simple localised geometric reconstruction tasks, which can be carried out in a parallel manner. These locally reconstructed vascular geometric segments are then combined together using shape-preserving blending operations to faithfully represent the geometric shape of the whole vascular system.
- Developed and proposed the Thin Implicit Patch method to realistically model the interior geometric structures of the vascular tissues. This method allows the multi-layer interior tissue structures to be embedded inside the vascular wall to illustrate the geometric details of the blood vessel in real world.
Qi, Q. (2018). High-performance geometric vascular modelling. (Thesis). University of Hull. Retrieved from https://hull-repository.worktribe.com/output/4221353
|Publication Date||Nov 1, 2018|
|Deposit Date||Mar 21, 2019|
|Publicly Available Date||Feb 23, 2023|
|Additional Information||School of Engineering and Computer Science, The University of Hull|
© 2018 Qi, Quan. All rights reserved. No part of this publication may be reproduced without the written permission of the copyright holder.
You might also like
Multilevel refinable triangular PSP-splines (Tri-PSPS)
Smooth piecewise polynomial blending operations for implicit shapes
Iterative closest geometric objects registration
Constructive implicit fitting
Implicit fitting using radial basis functions with ellipsoid constraint