Results 1 to 10 of about 10,515,069 (144)

Optimal Quantification of Functional Mitral Regurgitation: Comparison of Volumetric and Proximal Isovelocity Surface Area Methods to Predict Outcome [PDF]

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2021
Background Effective orifice area (EOA) ≥0.2 cm2 or regurgitant volume (Rvol) ≥30 mL predicts prognostic significance in functional mitral regurgitation (FMR).
Sachiyo Igata, Bruno R. Cotter, Calvin T. Hang, Nagisa Morikawa, Monet Strachan, Ajit Raisinghani, Daniel G. Blanchard, Anthony N. DeMaria   +7 more
doaj   +4 more sources

Radius of proximal isovelocity surface area in the assessment of rheumatic mitral stenosis: Connecting flow to anatomy and hemodynamics [PDF]

Journal of the Saudi Heart Association, 2015
Background: Echocardiographic assessment of left atrial pressure (LAP) in mitral stenosis (MS) is controversial. We sought to examine the role of the radius of the proximal isovelocity surface area (PISA-r) in the assessment of the hemodynamic status of ...
Alaa Mabrouk Salem Omar, Mohamed Ahmed Abdel-Rahman, Hala Raslan, Osama Rifaie   +3 more
doaj   +3 more sources

Quantification of Mitral Valve Regurgitation in Cavalier King Charles Spaniels and Chihuahuas Using Radius of Proximal Isovelocity Surface Area [PDF]

Animals
Mitral regurgitation (MR) resulting from myxomatous mitral valve disease (MMVD) is a prevalent condition in dogs, particularly smaller breeds like Cavalier King Charles Spaniels (CKCSs) and Chihuahuas (CHHs).
Jørgen Koch, Inge V. Engeland, Jakob L. Willesen, Anders S. Schrøder, Caroline H. Gleerup, Maiken B. T. Bach   +5 more
doaj   +3 more sources

Proximal isovelocity surface area method for assessment of mitral regurgitation severity: Principles, pitfalls, and future directions

Journal of the Indian Academy of Echocardiography & Cardiovascular Imaging, 2021
Quantification of mitral regurgitation (MR) is important in clinical practice. As fluid approaches a finite circular orifice, concentric hemispherical shells are formed with gradually decreasing surface area and increasing velocity. Severity of MR by the
Jesu Krupa
doaj   +2 more sources

Three-dimensional transthoracic echocardiographic evaluation of tricuspid regurgitation severity using proximal isovelocity surface area: comparison with volumetric method [PDF]

Cardiovascular Ultrasound, 2020
Background The quantification of tricuspid regurgitation(TR) using three-dimensional(3D) proximal isovelocity surface area (PISA) derived effective regurgitant orifice area (EROA) is feasible in functional TR.
Beiqi Chen, Yu Liu, Wuxu Zuo, Quan Li, Dehong Kong, Cuizhen Pan, Lili Dong, Xianhong Shu, Junbo Ge   +8 more
doaj   +2 more sources

Initial Experience With Automated 3D Color Flow Quantification of Mitral Regurgitation [PDF]

Structural Heart
Accurate quantification of mitral regurgitation (MR) is essential for preprocedural evaluation and intraprocedural decision-making during transcatheter mitral interventions.
Serge C. Harb, MD, Joseph Hajj, MD, Abdelrahaman Ahmed, MD, Amar Krishnaswamy, MD, Samir Kapadia, MD, Patrick Collier, MD, Richard Grimm, DO, Rhonda L. Miyasaka, MD   +7 more
doaj   +2 more sources

Intraoperative Quantification of Severe Mitral Regurgitation: A Comparative Assessment of Two-Dimensional Flow Convergence, Three-Dimensional Volumetric, and Doppler-Based Methods [PDF]

Journal of Cardiovascular Development and Disease
Accurate quantification of mitral regurgitation (MR) is central to perioperative decision-making, yet the agreement and interchangeability of commonly used echocardiographic methods remain uncertain.
Hany R. Elgamal, Volodymyr Protsyk, Massimiliano Meineri, Joerg Ender, Waseem Zakhary   +4 more
doaj   +2 more sources

Leaning Too Much on the Power of Proximal Isovelocity Surface Area? Don't Forget the Volumetric Method for Quantifying Functional Mitral Regurgitation [PDF]

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2021
Ray Hu, Tiffany Chen
doaj   +2 more sources

Assessment of chronic aortic regurgitation using end-diastolic flow reversal in the upper descending aorta: diagnostic accuracy and prediction of aortic valve surgery in a prospective echocardiography and cardiac magnetic resonance imaging study [PDF]

Echo Research and Practice
Background This study aimed to assess the utility of end-diastolic flow reversal in the upper descending aorta (EFR) for echocardiographic grading of aortic regurgitation (AR) severity, using cardiac magnetic resonance imaging (CMRI) as the reference ...
Knoll Katharina, Stefanie Rosner, Stefan Gross, Hasema Persch, Daniel Braun, Martin Orban, Wibke Reinhard, Martin Hadamitzky, Carolin Sonne   +8 more
doaj   +2 more sources

Prognostic implications of sex-related disparities in severity assessment of primary mitral regurgitation following intervention [PDF]

Open Heart
Background Current guidelines advocate for intervention in primary mitral regurgitation (PMR) based on detection of severe MR using standardised thresholds.
Ronak Rajani, Bernard Prendergast, Tiffany Patterson, Vitaliy Androshchuk, Simon Redwood, Edouard Long, Hirra Yasir   +6 more
doaj   +2 more sources