Positron emission tomography (PET) is usually taken as the gold standard for assessment of myocardial viability. A mismatch between perfusion and metabolism whereby underperfused region of myocardium is
Balanced myocardial ischaemia If all three major coronary branches have similar degree of stenosis, the radionuclide used for perfusion study will have equal uptake in all regions of
Single photon emission computed tomography (SPECT) - pros and cons: Important advantages of SPECT are that it has been extensively validated and has a good sensitivity, compared to
Thallium 201 single photon emission computed tomography (SPECT) Thallium 201 SPECT imaging is one of the oldest methods of assessing myocardial viability, though of late it is seldom
Assessment of myocardial viability by echocardiography: Echocardiographic techniques are safe and do not have the risk of ionizing radiation like nuclear perfusion studies and positron emission tomography. But
Strain and strain rate imaging for myocardial viability: Myocardial strain is a measure of deformation of a myocardial segment relative to its initial length. Strain rate is the
Myocardial contrast echocardiography (MCE) has been used in the assessment of myocardial viability. Myocardial segments with normal perfusion and those with patchy perfusion are considered to be viable.
Echocardiographic assessment of myocardial viability Echocardiographic assessment of myocardial viability: Diastolic wall thickness will give an idea regarding the myocardial viability. Thin and hyperdense myocardium is likely to
Myocardial viability assessment: The term viable myocardium is applied to myocardium with a potentially reversible contractile dysfunction in patients with coronary artery disease. It can be divided into stunned