Zhengduo Zhu

Strain analysis of intracranial aneurysms for characterization of irregular pulsation from 4D-CT angiography

Hao Wu, Jiaqiu Wang, Hujin Xie, Yu Han et autres

Intracranial aneurysm is a life-threatening cerebrovascular disease. Recent studies have shown that irregular pulsations are associated with an increased risk of rupture. Currently, there is an urgent need for an objective and real-time method for analyzing wall deformation associated with irregular pulsations. …

bd, cn, au, us (code pays fourni par la source)

Quantitative Motion Analysis of the Left Atrium in Patients with Atrial Fibrillation from Cardiac CT

Zhengduo Zhu

Atrial fibrillation affects millions of people and damages the heart’s left atrium, but current scans cannot clearly measure how this chamber moves and deforms during each heartbeat. This thesis developed and validated a new computer-based method to accurately track left atrial motion …

au (code pays fourni par la source)

Digital twin for atrial fibrillation: fundamentals, current advances, challenges and future perspectives

Hujin Xie, Qiuxiang Huang, Han Yu, Yunkun Qu et autres

• Digital twins enable patient-specific virtual heart models for AF treatment • Personalized simulations optimize atrial fibrillation ablation procedures • Advances in biophysical modelling enhance precision in AF treatment • Digital twin technology could transform personalized cardiac care management Atrial fibrillation (AF) …

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Three-dimensional left atrial strain analysis in patients with atrial fibrillation for stroke risk evaluation: A comparison between patients with and without stroke history

Han Yu, Hujin Xie, Zidun Wang, Hao Yu Wu et autres

Patients with atrial fibrillation (AF) are at risk for cardioembolic stroke. The recent studies suggest that reduced two-dimensional left atrial (LA) deformation, such as longitudinal strain, may be a potential indicator of stroke risk. We aim to evaluate three-dimensional (3-D) LA global …

au, cn, bd, gb (code pays fourni par la source)

Impact of multiplicative noise removal on digital volume correlation-based optical coherence elastography

Hao Yu Wu, Jiaqiu Wang, Zhengduo Zhu, Han Yu et autres

Digital volume correlation-based optical coherence elastography (DVC-based OCE) may easily suffer from multiplicative speckle noise of optical coherence tomography (OCT) imaging, which can introduce non-negligible calculation errors. In this study, Hamilton-Jacobi partial differential equations were adopted for multiplicative noise removal of OCT …

cn, au, gb (code pays fourni par la source)

In-vivo left atrial surface motion and strain measurement using novel mesh regularized image block matching method with 4D-CTA

Han Yu, Zidun Wang, Hao Wu, Zhengduo Zhu et autres

Atrial strain and motion play important roles in evaluation of stroke risks for patients with atrial fibrillation. While cardiac computed tomographic angiography (CTA) provides detailed left atrial morphology with unparallel image resolution, finding a suitable strain measurement method for CTA remains a …

au, cn, bd (code pays fourni par la source)

Performance test of digital volume correlation on tracking left atrium motion from cardiac CT

Zhengduo Zhu, Jiaqiu Wang, Hao Yu Wu, Minglong Chen et autres

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Impact of Speckle Deformability on Digital Imaging Correlation

Jiaqiu Wang, Hao Wu, Zhengduo Zhu, Hujin Xie et autres

Digital Image Correlation (DIC) has been widely used as a non-contact deformation measurement technique. Nevertheless, its accuracy is greatly affected by the speckle pattern on the specimen. To systematically evaluate how speckle deformability affects the precision of DIC algorithms. In this study, …

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Constrained estimation of intracranial aneurysm surface deformation using 4D-CTA

Hujin Xie, Hao Wu, Jiaqiu Wang, Jessica Benitez Mendieta et autres

BACKGROUND AND OBJECTIVE: Intracranial aneurysms are relatively common life-threatening diseases, and assessing aneurysm rupture risk and identifying the associated risk factors is essential. Parameters such as the Oscillatory Shear Index, Pressure Loss Coefficient, and Wall Shear Stress are reliable indicators of intracranial …

au, cn, gb, us (code pays fourni par la source)