Show Advanced Search

REFINE YOUR SEARCH:

Containing Text
- - -
+
Filter by author or institution
GO
Filter by publication date
From:
October, 2006
Until:
Today
Filter by journal section

Filter by science education

 
 
Mitral Valve: The valve between the left atrium and left ventricle of the heart.

High-frequency High-resolution Echocardiography: First Evidence on Non-invasive Repeated Measure of Myocardial Strain, Contractility, and Mitral Regurgitation in the Ischemia-reperfused Murine Heart

1Department of Surgery, The Ohio State University, 2Heart and Lung Research Institute, The Ohio State University, 3Department of Cardiovascular Medicine, The Ohio State University

JoVE 1781

 Medicine

Anatomy of the Heart

JoVE 10886

The human heart is made up of three layers of tissue that are surrounded by the pericardium, a membrane that protects and confines the heart. The outermost layer, closest to the pericardium, is the epicardium. The pericardial cavity separates the pericardium from the epicardium. Beneath the epicardium is the myocardium, the middle layer, and the endocardium, the innermost layer. There are four chambers of the heart: the right atrium, the right ventricle, the left atrium, and the left ventricle. These compartments have two types of valves—atrioventricular and semilunar—that prevent blood from flowing in the wrong direction. The right atrium receives blood from the coronary sinus and the superior and inferior vena cavae. This blood goes into the right ventricle via the right atrioventricular (or tricuspid) valve, a flap of connective tissue that prevents the backflow of blood into the atrium. Then, the blood leaves the heart, traveling through the pulmonary semilunar valve into the pulmonary artery. Blood is then carried back into the left atrium of the heart by the pulmonary veins. Between the left atrium and the left ventricle, the blood is again passed through an atrioventricular valve that prevents backflow into the atrium. This atrioventricular valve is called the bicuspid (or mitral) valve. The blood passes through the left ventricle into the aorta

 Core: Circulatory and Pulmonary Systems

Anatomy of the Circulatory System

JoVE 10885

The human circulatory system consists of blood, blood vessels that carry blood away from the heart, around the body, and back to the heart, and the heart itself, which acts as a central pump. The systemic circuit supplies blood to the whole body, the coronary circuit supplies blood to the heart, and the pulmonary circuit supplies blood flow between the heart and lungs.

Blood travels from the right atrium to the right ventricle of the heart through the tricuspid valve, then from the right ventricle to the pulmonary artery through the pulmonary valve. Pulmonary veins then carry the blood to the left atrium of the heart, from which it is carried to the left ventricle through the mitral valve. Finally, the left ventricle pumps blood to the aorta (the largest artery in the body) through the aortic valve. Arteries, which carry blood away from the heart, split and get progressively smaller, becoming arterioles and eventually a series of capillaries, the sites of gas exchange. Capillaries converge to become larger venules, and eventually merge into veins, which bring blood back to the heart. Humans have a double circulatory system, in which blood travels through the heart twice via the pulmonary and systemic circuits. First, the heart receives deoxygenated blood in its right side and then pumps it to the nearby pulmonary circuit, the capillaries that ar

 Core: Circulatory and Pulmonary Systems

Cardiac Exam III: Abnormal Heart Sounds

JoVE 10135

Source: Suneel Dhand, MD, Attending Physician, Internal Medicine, Beth Israel Deaconess Medical Center


Having a fundamental understanding of normal heart sounds is the first step toward distinguishing the normal from the abnormal. Murmurs are sounds that represent turbulent and abnormal blood flow across a heart valve. They are caused…

 Physical Examinations I

Cardiac Exam II: Auscultation

JoVE 10124

Source: Suneel Dhand, MD, Attending Physician, Internal Medicine, Beth Israel Deaconess Medical Center


Proficiency in the use of a stethoscope to listen to heart sounds and the ability to differentiate between normal and abnormal heart sounds are essential skills for any physician. Correct placement of the stethoscope on the chest…

 Physical Examinations I

Cardiac Exam I: Inspection and Palpation

JoVE 10071

Source: Suneel Dhand, MD, Attending Physician, Internal Medicine, Beth Israel Deaconess Medical Center


The cardiac assessment is one of the core examinations performed by almost every physician whenever encountering a patient. Disorders of the cardiac system are among the most common reasons for hospital admission, with conditions ranging…

 Physical Examinations I

Observational Study Protocol for Repeated Clinical Examination and Critical Care Ultrasonography Within the Simple Intensive Care Studies

1Department of Critical Care, University of Groningen, University Medical Center Groningen, 2Department of Anesthesiology, University of Groningen, University Medical Center Groningen, 3Department of Radiology, University of Groningen, University Medical Center Groningen, 4Department of Cardiology, University of Groningen, University Medical Center Groningen, 5Division of Nephrology, Department of Internal Medicine, University of Groningen, University Medical Center Groningen

JoVE 58802

 Medicine

Quantification of Strain in a Porcine Model of Skin Expansion Using Multi-View Stereo and Isogeometric Kinematics

1Mechanical Engineering, Purdue University, 2Division of Plastic Surgery, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, 3Mechanical Engineering, Bioengineering, Cardiothoracic Surgery, Stanford University

JoVE 55052

 Bioengineering

A Metadata Extraction Approach for Clinical Case Reports to Enable Advanced Understanding of Biomedical Concepts

1The NIH BD2K Center of Excellence in Biomedical Computing, University of California, Los Angeles, 2Department of Physiology, University of California, Los Angeles, 3Department of Medicine/Cardiology, University of California, Los Angeles, 4Department of Cardiology, First Affiliated Hospital, Zhejiang University School of Medicine, 5Department of Radiological Sciences, University of California, Los Angeles, 6Department of Bioengineering, University of California, Los Angeles, 7Scalable Analytics Institute (ScAi), University of California, Los Angeles, 8Department of Bioinformatics, University of California, Los Angeles, 9Department of Computer Science, University of California, Los Angeles

JoVE 58392

 Medicine

Cardiac Magnetic Resonance Imaging at 7 Tesla

1The Centre for Advanced Imaging, The University of Queensland, Brisbane, Australia, 2Department of Diagnostic and Interventional Radiology, University Clinic Würzburg, Würzburg, Germany, 3Siemens Healthcare Pty Ltd, Brisbane, Australia, 4Richard Slaughter Centre of Excellence in CVMRI, The Prince Charles Hospital, Brisbane, Australia, 5MRI.Tools GmbH, Berlin, Germany

JoVE 55853

 Medicine

Technique and Patient Selection Criteria of Right Anterior Mini-Thoracotomy for Minimal Access Aortic Valve Replacement

1Department of Cardiovascular and Thoracic Surgery, Pitié Salpêtrière University Hospital, Assistance Publique, Hôpitaux de Paris (APHP), Institut de Cardiologie, 2Institute of Veterinary Physiology and Zurich Center for Integrative Human Physiology, University of Zurich, 3Herzzentrum Hirslanden, Klinik St Anna, 4Department of Radiology, Canton Hospital Lucerne, 5Department of Anesthesiology and Intensive Care Unit, Pitié Salpêtrière University Hospital, Assistance Publique, Hôpitaux de Paris (APHP), Institut de Cardiologie

JoVE 57323

 Medicine

Isolation and Characterization of Primary Rat Valve Interstitial Cells: A New Model to Study Aortic Valve Calcification

1Developmental Biology, The Roslin Institute and R(D)SVS, University of Edinburgh, 2Guangzhou Institute of Cardiovascular Disease, The Second Affiliated Hospital, School of Basic Medical Sciences, Guangzhou Medical University, 3Clinical Sciences and R(D)SVS, University of Edinburgh

JoVE 56126

 Developmental Biology

Optimized Protocol for the Extraction of Proteins from the Human Mitral Valve

1Centro Cardiologico Monzino IRCCS, 2Cardiovascular Tissue Bank of Milan, Centro Cardiologico Monzino IRCCS, 3Department of Clinical Sciences and Community Health, Cardiovascular Section, University of Milan, 4Department of Cardiovascular Disease, Development and Innovation Cardiac Surgery Unit, Centro Cardiologico Monzino IRCCS

JoVE 55762

 Biochemistry

Left Atrial Stenosis Induced Pulmonary Venous Arterialization and Group 2 Pulmonary Hypertension in Rat

1Department of Medicine, Queen's University, 2Department of Biomedical and Molecular Sciences, Queen's University, 3Department of Cell Physiology, The Jikei University School of Medicine, 4Department of Pediatrics, The Jikei University School of Medicine, 5Department of Cardiovascular Surgery, The Jikei University School of Medicine

JoVE 58787

 Medicine

Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement

1Department of Cardiovascular and Thoracic Surgery, Pitie Salpetriere University Hospital, Assistance Publique, Hopitaux de Paris (APHP), Institut de Cardiologie, 2Institute of Veterinary Physiology and Zurich Center for Integrative Human Physiology, University of Zurich, 3Herzzentrum Hirslanden, Klinik St Anna

JoVE 56790

 Medicine

Use of Two Intracorporeal Ventricular Assist Devices As a Total Artificial Heart

1Division of Cardiothoracic Surgery, Department of Surgery, Duke University, 2Division of Cardiovascular Surgery, Department of Surgery, National Cheng Kung University Hospital and College of Medicine, 3Division of Surgical Sciences, Department of Surgery, Duke University

JoVE 55961

 Medicine

Culturing Mouse Cardiac Valves in the Miniature Tissue Culture System

1Department of Molecular Cell Biology, Leiden University Medical Center, 2Department of Engineering Technology, New Jersey Institute of Technology, 3Department of Urology, Leiden University Medical Center, 4Cardiovascular Research Institute, Department of Cell Biology and Molecular Medicine, Rutgers New Jersey Medical School

JoVE 52750

 Bioengineering

Method of Isolated Ex Vivo Lung Perfusion in a Rat Model: Lessons Learned from Developing a Rat EVLP Program

1Department of Biomedical Engineering, Ohio State University Wexner Medical Center, 2Davis Heart & Lung Research Institute, Ohio State University Wexner Medical Center, 3The Collaboration for Organ Perfusion, Protection, Engineering and Regeneration (COPPER) Laboratory, Ohio State University Wexner Medical Center, 4Division of Cardiac Surgery, Department of Surgery, Ohio State University Wexner Medical Center, 5Departments of Pediatrics and Internal Medicine, Ohio State University, 6Advanced Lung Disease Program, Lung and Heart-Lung Transplant Programs, Nationwide Children's Hospital, 7Division of Transplantation, Department of Surgery, Ohio State University Wexner Medical Center

JoVE 52309

 Medicine

Quantification of Global Diastolic Function by Kinematic Modeling-based Analysis of Transmitral Flow via the Parametrized Diastolic Filling Formalism

1Department of Biomedical Engineering, Washington University in St. Louis, 2Department of Physics, Washington University in St. Louis, 3Division of Biology and Biomedical Sciences, Washington University in St. Louis, 4Department of Medicine, Cardiovascular Division, Washington University in St. Louis, 5Cardiovascular Biophysics Lab, Washington University in St. Louis

JoVE 51471

 Bioengineering
12
More Results...