Strain rate imaging
Strain Rate Imaging
Strain Rate Imaging (pronunciation: strān rāt im-ij-ing) is a non-invasive medical imaging technique used in the field of cardiology to assess the deformation or "strain" of the heart muscle during the cardiac cycle.
Etymology
The term "Strain Rate Imaging" is derived from the words "strain", which in this context refers to deformation or change in shape, and "rate", referring to the speed or frequency of a particular event. "Imaging" is derived from the word "image", referring to a representation or likeness of something.
Definition
Strain Rate Imaging is a technique that uses Doppler echocardiography to measure the rate of deformation (strain) of the heart muscle. This technique provides a more detailed assessment of the heart's function and can help to identify areas of the heart that are not contracting properly.
Related Terms
- Echocardiography: A diagnostic test that uses ultrasound waves to produce images of the heart.
- Doppler Effect: A change in frequency or wavelength of a wave in relation to an observer who is moving relative to the wave source.
- Cardiac Cycle: The sequence of events that occur when the heart beats.
- Myocardium: The muscular tissue of the heart.
- Deformation (mechanics): The change in shape of a material object when subjected to a force.
Clinical Significance
Strain Rate Imaging is particularly useful in the early detection of myocardial ischemia, a condition in which the heart muscle is starved of oxygen. It can also be used to assess the function of the heart in patients with heart failure, cardiomyopathy, and valvular heart disease.
See Also
External links
- Medical encyclopedia article on Strain rate imaging
- Wikipedia's article - Strain rate imaging
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