What is the percentage of cardiac uptake for tetrofosmin (Myoview) at both rest and stress?

The percentage of cardiac uptake for tetrofosmin (Myoview) at both rest and stress is commonly reported to be approximately 1.2%. This value reflects the amount of the radiopharmaceutical that is taken up by the myocardium during myocardial perfusion imaging studies. Tetrofosmin is a radiotracer used in conjunction with SPECT imaging to evaluate blood flow to the heart muscle, and its uptake percentage is an important factor in assessing cardiac function and diagnosing various heart conditions.

The specificity of tetrofosmin's uptake in cardiac tissues is influenced by factors such as blood flow, myocardial cellular integrity, and the timing of imaging after radiotracer injection. Understanding this percentage helps clinicians interpret imaging results effectively, providing insights into the likelihood of coronary artery disease or other cardiovascular conditions.

Considering this metric is crucial for the correct assessment of myocardial perfusion imaging and informs the subsequent clinical decisions made based on the imaging results.