Results 71 to 80 of about 90,051 (360)

Changes in left atrial deformation in hypertrophic cardiomyopathy: Evaluation by vector velocity imaging. [PDF]

, 2012
OBJECTIVES: Hypertrophic cardiomyopathy (HCM) represents a generalized myopathic process affecting both ventricular and atrial myocardium. We assessed the global and regional left atrial (LA) function and its relation to left ventricular (LV) mechanics ...
Badran, HM, Faheem, N, Hassan, H, Nazmy, A, Saadan, H, Soltan, G, Yacoub, MH   +6 more
core   +2 more sources

On in-silico estimation of left ventricular end-diastolic pressure from cardiac strains [PDF]

2024 46th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), pp. 1-4
Left ventricular diastolic dysfunction (LVDD) is a group of diseases that adversely affect the passive phase of the cardiac cycle and can lead to heart failure. While left ventricular end-diastolic pressure (LVEDP) is a valuable prognostic measure in LVDD patients, traditional invasive methods of measuring LVEDP present risks and limitations ...
arxiv   +1 more source

NO and cardiac diastolic function [PDF]

Cardiovascular Research, 1999
Time for primary review 34 days. Since the first report of a role for nitric oxide (NO) in modulating myocardial contractile function in 1991 [1], an enormous number of studies have been published in this field (recently reviewed in Refs. [2–4]). It is now recognised that, under physiological conditions, the major sources of NO that are important for
Walter Paulus, Ajay M. Shah
openaire   +3 more sources

SCS: Superior‐Vena‐Cava Compressing Shape‐Memory‐Alloy‐Based Implantable Device for Heart Failure

Advanced Engineering Materials, EarlyView.
An implantable superior–vena‐cava compression device, utilizing biocompatible shape‐memory‐alloy actuators, regulates blood flow and thereby achieves an 18.6% reduction in end‐diastolic left ventricular volume in a porcine model of ADHF. This potential long‐term solution minimizes thrombosis risk by avoiding direct blood contact, offering a significant
Yongjin Kim, Jeonghyeon Lee, Jeongwon Kim, Domin Cho, Hyunwoo Lee, Se Jin Oh, Amy Kyungwon Han   +6 more
wiley   +1 more source

Shape‐Reconfigurable Crack‐Based Strain Sensor with Ultrahigh and Tunable Sensitivity

Advanced Functional Materials, EarlyView.
A highly sensitive crack‐based sensor with tunable strain detection capabilities is demonstrated through controlled nanocrack formation in a line‐patterned shape memory polymer substrate. The sensor design integrates thermoplastic polyurethane and poly(lactic acid), enabling thermo‐responsive reconfiguration of crack geometry.
Seungjae Lee, Youngoh Lee, Cheolhong Park, Yun Goo Ro, Min Sub Kwak, Geonyoung Jeong, Junseo Park, Hyejin Lee, Pan Kyeom Kim, Sung‐Il Chung, Hyunhyub Ko   +10 more
wiley   +1 more source

Discrepancies in Assessing Diastolic Function in Pre-Clinical Heart Failure Using Different Algorithms—A Primary Care Study

Diagnostics, 2020
Background: Current guidelines on diastolic function (DF) by the American Society of Echocardiography and the European Association of Cardiovascular Imaging (ASE/EACVI) have been disputed and two alternative algorithms have been proposed by Johansen et ...
Martina Setti, Giovanni Benfari, Donato Mele, Andrea Rossi, Piercarlo Ballo, Maurizio Galderisi, Michael Henein, Stefano Nistri   +7 more
doaj   +1 more source

Investigating inter-turn fault in transformer using TTR and FRA [PDF]

, 2019
Transformers are one of the significant elements in the power system network. The Transformer function is to step up and down the voltages. When the transformer operating in high load, it exposes to failures.
Abdulrazzaq Al-Iedani, Ali Salman
core  

Quantification of myocardial blood flow with cardiovascular magnetic resonance throughout the cardiac cycle [PDF]

, 2015
BACKGROUND: Myocardial blood flow (MBF) varies throughout the cardiac cycle in response to phasic changes in myocardial tension. The aim of this study was to determine if quantitative myocardial perfusion imaging with cardiovascular magnetic resonance ...
Greenwood, J.P., Kidambi, A., Motwani, M., Plein, S., Sourbron, S., Uddin, A.   +5 more
core   +2 more sources

Estimation of Cardiac Valve Annuli Motion with Deep Learning [PDF]

arXiv, 2020
Valve annuli motion and morphology, measured from non-invasive imaging, can be used to gain a better understanding of healthy and pathological heart function. Measurements such as long-axis strain as well as peak strain rates provide markers of systolic function.
arxiv  

Narrowband Detection via Charge Collection Narrowing Organic Photodetector Enabled by Low Bandgap Random Terpolymer for Biometric Sensing

Advanced Functional Materials, EarlyView.
A novel low‐bandgap random terpolymer is designed for narrow band detection in charge collection narrowing (CCN) based organic photodetectors. With a relative thin active layer (<1 µm), the CCN‐based devices achieved a narrowband response of 68 nm full‐width‐at‐half‐maximum at 916 nm, together with Responsivity values of 0.13 A W−1 and dark current of ...
Matilde Brunetta, Zhuoran Qiao, Adibah Zamhuri, Francesco Furlan, Martina Rimmele, Peter A. Gilhooly‐Finn, Lewis M. Cowen, Filip Aniés, Patipan Sukpoonprom, Stanley Cazaly, Julianna Panidi, Flurin Eisner, Martin Heeney, Bob C. Schroeder, Nicola Gasparini   +14 more
wiley   +1 more source