Strain: What Does This Add to Ventricular Function Assessment?
نویسنده
چکیده
Transesophageal echocardiography (TEE) has advanced the role of the cardiovascular anesthesiologist and increased his/her active role and obligations during perioperative patient care. Assessment of global and regional left ventricular (LV) function consists of two-dimensional (2D) or Doppler evaluation of cardiac structures and their interaction with blood flow. The techniques used are mostly visual and subjective(1,2) thus, not always accurate or error-free. Recent technological advances in signal processing in Doppler (Doppler tissue imaging [DTI] and Doppler strain echocardiography [DSE]) and non-Doppler (2D speckle tracking imaging [STE]) enable measurement of velocities, deformation and rotation. As a result, high quality, precise, and objective information regarding regional and/or global myocardial function (some of it in real time) decrease the subjectivity of the interpretation and increase the diagnostic accuracy.
منابع مشابه
Evaluation of strain and strain rate parameters using two-dimensional speckle-tracking echocardiography in patients with coronary artery disease (Research Article)
The study aimed was to measure left ventricular (LV) strain using speckle tracking echocardiography (STE) for assessment of LV function. Eighty-two subjects (mean age 57±9 years) with suspected chest pain underwent two-dimensional (2D)-echocardiography before coronary angiography. Conventional echocardiographic parameters were used for the assessment of LV function. Longitudinal strain and its ...
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