Results 61 to 70 of about 6,306,409 (152)

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  

Problems related to the assessment of fluid velocity and volume flow in valve regurgitation using ultrasound Doppler technique

, 1987
Understanding of the factors affecting regurgitant flow through a heart valve and of the inherent limitations of the Doppler technique is needed to interpret correctly the information obtained during an ultrasound Doppler examination.
Loyd, Dan,, Ask, Per,, Wranne, Bengt,
core   +1 more source

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

Novel 3-dimensional effective regurgitation orifice area quantification serves as a reliable tool to identify severe mitral valve regurgitation

Scientific Reports
A precise quantification of mitral regurgitation (MR) severity is essential for treatment and outcome of patients with MR. 3D echocardiography facilitates estimation of MR but selection of patients with necessity of invasive treatment remains challenging.
Tobias Harm, Frederic-Joaquim Schwarz, Monika Zdanyte, Andreas Goldschmied, Livia Baas, Parwez Aidery, Serhii Shcherbyna, Ioannis Toskas, Timea Keller, Isabela Kast, Juergen Schreieck, Tobias Geisler, Meinrad Paul Gawaz, Karin Anne Lydia Mueller   +13 more
doaj   +1 more source

Differences in Mitral Valve Geometry between Atrial and Ventricular Functional Mitral Regurgitation in Patients with Atrial Fibrillation: a 3D Transesophageal Echocardiography Study [PDF]

Al-Azhar International Medical Journal
Background: Functional mitral regurgitation (FMR) is commonly attributed to either atrial or ventricular dysfunction.Objective: This study aimed to investigate mitral valve geometric differences between atrial functional mitral regurgitation (A-FMR) and ...
Wael Atia, Ahmed Elbeny, Ahmed Abdelwahid   +2 more
doaj   +1 more source

Echocardiographic and Doppler parameters used for grading of TR severity.

, 2015
Presence of three or more of the five parameters shown defines severity grade (mild, moderate or severe).RV indicates right ventricular; RA, right atrium; IVC, inferior vena cava; VC, vena contracta; PISA, proximal isovelocity surface area.* Unless there
Andreas A. Kammerlander (492270), Beatrice A. Marzluf (785536), Alfred Kocher (492271), Julia Mascherbauer (492273), Alexandra Graf (492269), Diana Bonderman (492268)   +5 more
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Cheilanthes contracta (BOL218485)

, 2023
Kingdom: PlantaeDivision: PolypodiophytaClass: PolypodiopsidaOrder: PolypodialesFamily: PteridaceaeScientific name: Cheilanthes contracta (Kunze) Mett.
Bolus Herbarium (9862976)
core   +1 more source

Characteristics of flow through orifice-meter [PDF]

JES: Journal of Engineering Sciences
Flow measurements in pipes and open channels are critical for successful water resource management as the economic value of water has increased. Orifice meters are typically used as flow-measuring devices in pipes because they are cheap and simple ...
Mohamed Assran, Shenouda Ghaly, Hassan Mohamed   +2 more
doaj   +1 more source

Echocardiographic Assessment of Mitral Valve Regurgitation, Pattern and Prevalence, Expanding Clinical Awareness through an Institutional Survey with the Perspective of a Quality Improvement Project

Clinical Medicine Insights: Cardiology, 2014
Background Mitral regurgitation (MR) is frequently reported in everyday echocardiograms; accurate assessment is essential for appropriate management and decision making Objective We performed a self-audit in order to define the prevalence and pattern of ...
Antoine Kossaify, Vanessa Akiki
doaj   +1 more source

Factors associated with recurrence of mitral regurgitation 14 days after rheumatic mitral valve repair

Frontiers in Cardiovascular Medicine
BackgroundRheumatic mitral valve repair has been subject to clinical scrutiny due to the recurrence of postoperative regurgitation. This study aimed to identify factors associated with the development of mild or greater mitral regurgitation (MR) within ...
RenDong Liang, Ding Zhang, QingYu Sun, BiJun Zhao, Xu Meng   +4 more
doaj   +1 more source