Myocardial viability. Assessment by cardiac scintigraphy.
Myocardial systolic contractile dysfunction can occur despite preservation of myocardial viability, conditions referred to as myocardial 'stunning' or 'hibernation.' Because simple assessment of wall motion does not adequately distinguish nonviable from viable but noncontracting myocardial regions, clinicians require alternate methods to assess whether strategies might be useful. Nuclear imaging techniques can provide relatively precise, clinically relevant information regarding the status of myocardial viability, despite the presence of regional or global systolic dysfunction.
Department of Medicine, University of Virginia Health Sciences Center, Charlottesville.
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Gimple
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Beller
D000818:Animals; D003327:Coronary Disease / Q000000981:diagnostic imaging*; D005462:Fluorine Radioisotopes; D006801:Humans; D017682:Myocardial Stunning / Q000000981:diagnostic imaging*; D017256:Technetium Tc 99m Sestamibi; D013794:Thallium Radioisotopes; D014022:Tissue Survival; D014055:Tomography, Emission-Computed; D015899:Tomography, Emission-Computed, Single-Photon
D005462:Fluorine Radioisotopes; D013794:Thallium Radioisotopes; D017256:Technetium Tc 99m Sestamibi