Results 81 to 90 of about 48,338 (205)

Analytical modeling of the instantaneous maximal transvalvular pressure gradient in aortic stenosis

, 2005
In presence of aortic stenosis, a jet is produced downstream of the aortic valve annulus during systole. The vena contracta corresponds to the location where the cross-sectional area of the flow jet is minimal. The maximal transvalvular pressure gradient
Savéry, David, Durand, Louis-Gilles, Garcia, Damien, Pibarot, Philippe, Kadem, Lyes   +4 more
core   +1 more source

In vitro four-dimensional flow magnetic resonance analysis of the effect of pericardial valve design on aortic flow

, 2022
We investigated the effect of the design of bioprosthetic pericardial valves on the downstream fluid flow pattern through four-dimensional flow magnetic resonance imaging (4D Flow).
Menicanti L., Redaelli A., Jaworek M., Lombardi M., Giese D., Vismara R., Sturla F., Tasca G., Alberto Redaelli, Lorenzo Menicanti, Riccardo Vismara, Michal Jaworek, Daniel Giese, Massimo Lombardi, Francesco Sturla, Giordano Tasca   +15 more
core   +1 more source

Harnessing genomic resources for passion fruit improvement: Progress and prospects

The Plant Genome, Volume 19, Issue 1, March 2026.
Abstract Passion fruit (Passiflora edulis) is a highly nutritious horticultural crop cultivated widely across tropical and subtropical regions. Despite decades of breeding efforts that have led to the release of a few high‐yielding cultivars, on‐farm productivity remains suboptimal, and several existing cultivars are showing signs of declining vigor ...
Khushboo Fulara, Vanika Garg, Xinhang Sun, Rebecca Ford, Natalie Dillon, Bruce Topp, Robert J. Henry, Mobashwer Alam, Rajeev K. Varshney   +8 more
wiley   +1 more source

Comparative analysis of MitraClip/TriClip and PASCAL in transcatheter tricuspid valve repair for tricuspid regurgitation: a systematic review and meta-analysis

BMC Cardiovascular Disorders
Background The edge-to-edge transcatheter tricuspid valve repair (TTVR) has emerged as a promising technique for the treatment of tricuspid regurgitation (TR).
Mahmoud Balata, Mohamed Ibrahim Gbreel, Marwa Hassan, Marc Ulrich Becher   +3 more
doaj   +1 more source

A novel transcatheter tricuspid annuloplasty for severe tricuspid valve regurgitation via the K-clip™ system: early experience in China

Frontiers in Cardiovascular Medicine
BackgroundPatients who suffer from severe tricuspid regurgitation (TR) do not undergo standard care therapy because of the high surgical risk. As a result, safer and less invasive techniques are being sought after internationally.
Rongfeng Xu, Lijuan Chen, Xiaoli Zhang, Xiuxia Ding, Zhen Wang, Qitong Lu, Xiaoguo Zhang, Jiandong Ding, Genshan Ma   +8 more
doaj   +1 more source

The inferior caval vein draining into the left atrial cavity : a rare case [PDF]

, 2011
The inferior vena cava (IVC) draining into the left atrium (LA) is exceedingly rare in the setting of the usual atrial arrangement (situs solitus).
Shiina, Y., Slavik, S., Yen Ho, S., Uemura, H., McCarthy, Karen   +4 more
core  

KTI-TKV-202218-1910033006-BEBI SYIFA MAULIDA

, 2022
Latar Belakang : Pengukuran regurgitasi mitral bisa menggunakan parameter semi-kuantitatif Vena Contracta (VC) dan parameter pengukuran kuantitatif Effective Regurgitant Orifice Area (EROA). Pengambilan kedua parameter pada penelitian ini digunakan
BEBI SYIFA MAULIDA, Bebi, Bety Semara Lakhsmi, Bety, Fahmi Idrus, Fahmi   +2 more
core  

A Semi‐Analytical Model for Predicting the Depth‐Averaged Maximum Longitudinal Velocity in Fully Ice‐Covered Confluences

Water Resources Research, Volume 62, Issue 3, March 2026.
Abstract At river confluences, the complex hydrodynamics result in significant alterations to flow structures, and the maximum velocity zone serves as one of the primary drivers of pollutant transport and riverbed erosion. This study investigates maximum longitudinal velocity formation in fully ice‐covered confluences, statistically validating the ...
Zhiwei Li, Haokun Feng, Carlo Gualtieri, Bin Sun, Gang Chen, Feifei Wang   +5 more
wiley   +1 more source

Three-dimensional reconstruction of the color Doppler-imaged vena contracta for quantifying aortic regurgitation: studies in a chronic animal model

, 1999
BACKGROUND: The purpose of this study was to investigate the use of 3-dimensional (3D) reconstruction of color Doppler flow maps to image and extract the vena contracta cross-sectional area to determine the severity of aortic regurgitation (AR) in an ...
Mori, Y., Jones, M., Wanitkun, S., Delabays, A., Li, X., Sahn, D. J., Irvine, T., Shiota, T., Pandian, N. G.   +8 more
core   +1 more source

The influence of calcium-phosphate metabolism abnormalities on the quality of life in patients with hemodynamically significant mitral regurgitation

BMC Cardiovascular Disorders, 2019
Background In recent years, studies have indicated that vitamin D [25(OH)D3] and other calcium-phosphate (Ca-P) metabolism parameters and their disturbances might be potential new factors that may influence health-related quality of life (HRQoL). The aim
Olga Mozenska, Jacek Bil, Agnieszka Segiet, Dariusz A. Kosior   +3 more
doaj   +1 more source