Echocardiogram

An echocardiogram is a noninvasive imaging test that uses ultrasound to create moving pictures of the heart, helping clinicians assess cardiac structure and function. A transducer sends high-frequency sound waves through the chest, and computer analysis converts returning echoes into images; Doppler techniques measure the speed and direction of blood flow across the chambers and valves. In clinical practice, echocardiography evaluates heart size, pumping strength, valve movement, blood-flow abnormalities, and fluid around the heart. Because it provides real-time information without ionizing radiation, the technique supports diagnosis, treatment planning, and monitoring of cardiovascular disease.

Echocardiogram - Related Videos

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JoVE Journal - Medicine
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Echocardiography Recording in Awake Miniature Pigs

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Cited by 4 •

2023

A simple cart construct, built to perform research echocardiography in standing awake minipigs, is described, along with building considerations, training techniques, and representative ultrasound images.

Research

JoVE Journal - Medicine

Ultrasound-guided Intracardiac Injection of Human Mesenchymal Stem Cells to Increase Homing to the Intestine for Use in Murine Models of Experimental Inflammatory Bowel Diseases

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Cited by 7 •

2017

Murine studies in models of colonic inflammation have demonstrated that a small percentage (1 - 5%) of mesenchymal stem cells (MSC) injected intravenously or intraperitoneally home to the inflamed colon1,2. This study shows that ultrasound-guided intracardiac injections of MSCs result in increased localization to the intestine.

Research

JoVE Journal - Medicine
Free Sample

The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation

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Cited by 49 •

2012

The accompanying video describes a procedure for percutaneous placement of the WATCHMAN Left Atrial Appendage (LAA) Device. The WATCHMAN is a nitinol device designed to be permanently implanted at, or slightly distal to, the opening of the left atrial appendage (LAA) to trap blood clots before they exit the LAA, preventing thromboembolic stroke.

Ultrasound-Guided Induced Pluripotent Stem Cell-Derived Cardiomyocyte Implantation in Myocardial Infarcted Mice

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Cited by 3 •

2022

Ultrasound-guided cell delivery around the site of myocardial infarction in mice is a safe, effective, and convenient way of cell transplantation.

An Injectable and Drug-loaded Supramolecular Hydrogel for Local Catheter Injection into the Pig Heart

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Cited by 21 •

2015

Supramolecular hydrogelators based on ureido-pyrimidinones allow full control over the macroscopic gel properties and the sol–gel switching behavior using pH. Here, we present a protocol for formulating and injecting such a supramolecular hydrogelator via a catheter delivery system for local delivery directly in relevant areas in the pig heart.

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