News tagged with echocardiography
Among patients with heart failure with preserved ejection fraction, long-term treatment with the medication spironolactone improved left ventricular diastolic function but did not affect maximal exercise capacity, patient ...
Cardiology Feb 26, 2013 | not rated yet | 0 |
Heart failure patients with a condition called "heart block" derive significant benefit from cardiac resynchronization therapy (CRT), according to the results of the Block HF clinical trial, presented today at the American ...
Cardiology Nov 06, 2012 | not rated yet | 0
Patients treated by physicians who billed for both technical (practice/equipment) and professional (supervision/ interpretation) components of nuclear and echocardiographic stress imaging tests were more likely to undergo ...
Cardiology Nov 08, 2011 | not rated yet | 0
Certain biomarkers appear to increase risk of death for elderly patients with heart failure symptoms
Elderly patients with symptoms of heart failure and increased concentrations in the blood of the biomarker copeptin, or a combination of elevated concentrations of copeptin and the biomarker NT-proBNP, had an associated increased ...
Cardiology May 24, 2011 | not rated yet | 0
MDCT helps better determine valve implant size for transcatheter aortic valve in patients with aortic stenosis
MDCT is a better way to measure annular size in patients with aortic stenosis who are candidates for transcatheter aortic valve implantation (TAVI) than two dimensional echocardiography, a new study indicates.
Cardiology Apr 13, 2013 | not rated yet | 0
Leading international researchers and doctors are meeting at the University of Otago, Wellington this week to identify new approaches to reducing the very high levels of rheumatic fever in New Zealand and Australia.
Inflammatory disorders Feb 05, 2013 | not rated yet | 0
The inaugural international guidelines for the diagnosis of rheumatic heart disease (RHD), a disease that affects tens of millions of people worldwide, have today been published by the World Heart Federation in Nature Reviews ...
Cardiology Feb 28, 2012 | 3 / 5 (1) | 0
"Up until now infarct size has only been measured as part of clinical studies and not in routine clinical practice. The reason being that the reference method of gadolinium based contrast agents in MRI is expensive, takes ...
Cardiology Dec 07, 2011 | not rated yet | 0
Since 2007 Transcatheter Aortic Valve Implantation (TAVI) has become an alternative treatment for elderly patients with severe aortic stenosis at high risk for surgical aortic valve replacement. At present, durability and ...
Cardiology Aug 30, 2011 | not rated yet | 0
A German team has developed a completely new non-invasive method to identify heart failure. It consists of an "electronic nose" which could make the "smelling" of heart failure possible. The projet was presented at the ESC ...
Cardiology Aug 29, 2011 | not rated yet | 0
Sudden cardiac death in young athletes who had not previously exhibited symptoms is a relatively rare yet tragic event. This occurs in around 60-80 young athletes annually in the United States. In the June 2011 issue of The ...
Health May 26, 2011 | not rated yet | 0
An echocardiogram, often referred to in the medical community as a cardiac ECHO or simply an ECHO, is a sonogram of the heart (it is not abbreviated as ECG, which in medicine usually refers to an electrocardiogram). Also known as a cardiac ultrasound, it uses standard ultrasound techniques to image two-dimensional slices of the heart. The latest ultrasound systems now employ 3D real-time imaging.
In addition to creating two-dimensional pictures of the cardiovascular system, an echocardiogram can also produce accurate assessment of the velocity of blood and cardiac tissue at any arbitrary point using pulsed or continuous wave Doppler ultrasound. This allows assessment of cardiac valve areas and function, any abnormal communications between the left and right side of the heart, any leaking of blood through the valves (valvular regurgitation), and calculation of the cardiac output as well as the ejection fraction. Other parameters measured include cardiac dimensions (luminal diameters and septal thicknesses) and E/A ratio.
Echocardiography was an early medical application of ultrasound. Echocardiography was also the first application of intravenous contrast-enhanced ultrasound. This technique injects gas-filled microbubbles into the venous system to improve tissue and blood delineation. Contrast is also currently being evaluated for its effectiveness in evaluating myocardial perfusion. It can also be used with Doppler ultrasound to improve flow-related measurements (see Doppler echocardiography).
Echocardiography is either performed by cardiac sonographers, cardiac physiologists (UK) or doctors trained in cardiology.
For more information about Echocardiography, read the full article at
This text uses material from Wikipedia and is available under the GNU Free Documentation License.