16 Result(s)

Article

Left Ventricular Diastolic Myocardial Stiffness and End-Diastolic Myofibre Stress in Human Heart Failure Using Personalised Biomechanical Analysis

Understanding the aetiology of heart failure with preserved (HFpEF) and reduced (HFrEF) ejection fraction requires knowledge of biomechanical factors such as diastolic myocardial stiffness and stress. Cine CMR...

Zhinuo J. Wang, Vicky Y. Wang… in Journal of Cardiovascular Translational Re… (2018)

Chapter and Conference Paper

Identification of Transversely Isotropic Properties from Magnetic Resonance Elastography Using the Optimised Virtual Fields Method

Magnetic resonance elastography (MRE) has been used to estimate myocardial stiffness. However, inversion methods typically introduce unrealistic assumptions. The virtual fields method (VFM) has been proposed f...

Renee Miller, Arunark Kolipaka… in Functional Imaging and Modelling of the He… (2017)

Chapter and Conference Paper

Three-Dimensional Quantification of Myocardial Collagen Morphology from Confocal Images

The mechanical properties of myocardial tissue are primarily determined by the organisation of the collagen network. Quantitative measurements of collagen morphology can help to understand the structure-functi...

Abdallah I. Hasaballa, Gregory B. Sands… in Functional Imaging and Modelling of the He… (2017)

Chapter and Conference Paper

Parameterisation of Multi-directional Diffusion Weighted Magnetic Resonance Images of the Heart

This study presents a novel method for building parametric representations of myocardial microstructure of the left ventricle from multi-directional diffusion weighted magnetic resonance images (DWI). The dire...

Bianca Freytag, Vicky Y. Wang… in Statistical Atlases and Computational Mode… (2016)

Chapter and Conference Paper

Determining Anisotropic Myocardial Stiffness from Magnetic Resonance Elastography: A Simulation Study

Although magnetic resonance elastography (MRE) has the potential to non-invasively measure myocardial stiffness, myocardium is known to be anisotropic and it is not clear whether all material parameters can be...

Renee Miller, Haodan Jiang, Ria Mazumder… in Functional Imaging and Modeling of the Hea… (2015)

Chapter and Conference Paper

Microstructural Remodelling and Mechanics of Hypertensive Heart Disease

Changes in heart geometry and microstructural remodelling of myocardium are pathological processes that occur in heart failure (HF). The combination of effects often leads to compromised mechanical function of...

Vicky Y. Wang, Alexander J. Wilson… in Functional Imaging and Modeling of the Hea… (2015)

Chapter and Conference Paper

Identifying Myocardial Mechanical Properties from MRI Using an Orthotropic Constitutive Model

This paper presents a method to characterise the passive orthotropic and contractile properties of left ventricular (LV) myocardial tissue using MRI data of cardiac anatomy, structure and function. Personalise...

Zhinuo J. Wang, Vicky Y. Wang, Sue-Mun Huang… in Statistical Atlases and Computational Mode… (2015)

Chapter and Conference Paper

Field-Based Parameterisation of Cardiac Muscle Structure from Diffusion Tensors

This paper presents a robust method to directly construct parametric representations of myocardial structure using a left ventricular (LV) finite element model customised to diffusion tensors derived from card...

Bianca Freytag, Vicky Y. Wang… in Functional Imaging and Modeling of the Hea… (2015)

Chapter and Conference Paper

Changes in In Vivo Myocardial Tissue Properties Due to Heart Failure

A clinical image data driven mechanics analysis was used to quantify changes in tissue-specific passive and contractile material properties for groups of normal and HF patients. We have developed an automated ...

Vicky Y. Wang, Alistair A. Young… in Functional Imaging and Modeling of the Hea… (2013)

Chapter and Conference Paper

Estimation of In Vivo Myocardial Fibre Strain Using an Architectural Atlas of the Human Heart

We propose a methodology to estimate 3D+time maps of left ventricular (LV) fibre strain from human structural and dynamic MRI data. A biomechanical finite element model integrates fibre direction throughout th...

Christopher Casta, Vicky Y. Wang… in Functional Imaging and Modeling of the Hea… (2013)

Reference Work Entry In depth

The Inverse Problem of Electrocardiography

Andrew J. Pullan, Leo K. Cheng, Martyn P. Nash… in Comprehensive Electrocardiology (2010)