You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Best noninvasive investigation to check for bility of myocardium is: and explain in detail?
Ans: A. FDG-18 PET CT(Ref Harrison 19/e p270 e4, 18/e p1846).Best noninvasive investigation for myocardium bility check = FDG-18 PET CTViable myocardium:Non-contracting ischemic myocardium at rest.Has full potential to recover its function (On self or on revascularization).PET:Gold standard for assessment of myocardium bility.Identifies ischemic or hibernating myocardium in 10-20% of fibrotic or infracted regions.Uses thallium & technetium labeling.Positron-emitting tracer F-18 fluorodeoxyglucose (FDG) assesses myocardial glucose metabolism - Hence an indicator of myocardial bility.Evaluation methods of myocardial bility:Mainly in ischemic cardiomyopathy patients.Myocardial perfusion imaging (with SPECT or PET) combined with metabolic imaging (i.e., fluorodeoxyglucose I FDGJ PET).Excellent alternative:Thallium-201 SPECT imaging (hospitals lacking PET scanning).