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Purpose
The anterior‐posterior spread concept is relied upon to understand the bioengineering aspects of cantilevers in fixed complete denture prostheses. This concept is not evidence‐based. With no other category existing in contemporary implant dentistry, this conventional anterior‐posterior spread concept may have limited more precise and accurate biomechanical analysis. This paper aims to validate...
The study of biomechanics of isolated cardiomyocytes can allow us to understand the cardiac function and disease development in the absence of viscoelastic or contractile properties of the surrounding tissue. However, popular techniques such as micropipettes and carbon fibre-based measurements require serial, single-cell measurements and limit the amount of data passing through a system or process...
It has been shown experimentally that the load carrying capacity of the spine significantly increases when compressive loads are carried along the follower load (FL) direction. However, it is necessary to modify the current FL concept because a certain amount of shear force is produced during activities in daily life. In this study, a clinically allowable range of shear force was investigated using...
Ultrasound strain imaging has been proposed to quantitatively assess myocardial contractility. Cross-correlation based 2D speckle tracking (ST) and auto-correlation based Doppler tissue imaging (DTI) are competitive ultrasound techniques for this application. Unlike ST, DTI is limited by angle dependency and suffers from low signal-to-noise ratio because a high pulse repetition frequency (PRF) is...
Cardiac motion related artifact in ultrasound induced thermal strain imaging (TSI) was reduced in-vitro and in-vivo using ECG gating. Tissue motion due to the heart beat is a major challenge for in-vivo TSI application, especially for cardiovascular systems. Temporal variation of the relative position between the transducer and the artery will induce decorrelation in speckle tracking. Tissue deformation...
Tissue engineers are greatly interested in non- invasively evaluating the extent of cell growth, scaffold degradation, and tissue development both in vitro and in vivo as a function of time. Current evaluation methods such as cell histology and direct mechanical measurements can only provide static snapshots using different specimens at different time points. These measurements introduce specimen...
The feasibility of inducing and imaging thermal strain to identify vulnerable plaques in peripheral arteries based on conventional ultrasound scanners is demonstrated. Vulnerable plaque usually consists of a large lipid-rich core. Because lipid-bearing tissue has a negative temperature dependence of sound speed, whereas water-based tissue has a positive one, thermal strain imaging can differentiate...
Strain rate imaging has been proposed to quantitatively evaluate myocardial deformation and potentially quantify injury of ischemic heart disease (IHD) and remodeling of myocardial infarction (MI). However, because deformation of the cardiac wall is complex and three-dimensional, it's hard to evaluate imaging algorithms (e.g., 2D/3D speckle tracking for strain rate estimation) without a well-controlled...
The etiology of skeletal muscle fatigue is not well understood partly because techniques portraying muscle performance in vivo are limited by either their invasiveness (e.g., needle electrodes) or poor spatial resolution (e.g., surface EMG). To better characterize effects of FES and muscle fatigue, we captured real-time high resolution dynamics of the human forearm before and after a fatigue exercise...
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