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Calibration of the mechanical boundary conditions for a patient-specific thoracic aorta model including the heart motion effect [PDF]

Volume: 70 Issue: 11, November 2023, IEEE Transaction on Biomedical Engineering
Objective: we propose a procedure for calibrating 4 parameters governing the mechanical boundary conditions (BCs) of a thoracic aorta (TA) model derived from one patient with ascending aortic aneurysm. The BCs reproduce the visco-elastic structural support provided by the soft tissue and the spine and allow for the inclusion of the heart motion effect.
arxiv +1 more source

Aorta Segmentation from 3D CT in MICCAI SEG.A. 2023 Challenge [PDF]

arXiv, 2023
Aorta provides the main blood supply of the body. Screening of aorta with imaging helps for early aortic disease detection and monitoring. In this work, we describe our solution to the Segmentation of the Aorta (SEG.A.231) from 3D CT challenge. We use automated segmentation method Auto3DSeg available in MONAI.
arxiv

A 2D dilated residual U-Net for multi-organ segmentation in thoracic CT [PDF]

arXiv, 2019
Automatic segmentation of organs-at-risk (OAR) in computed tomography (CT) is an essential part of planning effective treatment strategies to combat lung and esophageal cancer. Accurate segmentation of organs surrounding tumours helps account for the variation in position and morphology inherent across patients, thereby facilitating adaptive and ...
arxiv

SegTHOR: Segmentation of Thoracic Organs at Risk in CT images [PDF]

arXiv, 2019
In the era of open science, public datasets, along with common experimental protocol, help in the process of designing and validating data science algorithms; they also contribute to ease reproductibility and fair comparison between methods. Many datasets for image segmentation are available, each presenting its own challenges; however just a very few ...
arxiv

Evaluation of Peak Wall Stress in an Ascending Thoracic Aortic Aneurysm Using FSI Simulations: Effects of Aortic Stiffness and Peripheral Resistance [PDF]

Cardiovascular Engineering and Technology, Springer, 2018, 9 (4), pp.707-722, 2019
Purpose. It has been reported clinically that rupture or dissections in thoracic aortic aneurysms (TAA) often occur due to hypertension which may be modelled with sudden increase of peripheral resistance, inducing acute changes of blood volumes in the aorta.
arxiv

CASE OF ANEURISM OF THE THORACIC AORTA. [PDF]