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How do you read a cardiac perfusion scan?

How do you read a cardiac perfusion scan?

A score of 1 represents an equivocal or mild reduction in perfusion, 2 represents moderately reduced perfusion, 3 represents severely reduced perfusion, and 4 indicates absent perfusion. The summed stress score for the left ventricle then is used to determine the risk for a future hard cardiac event (15).

What is a normal TID score?

The normal limits of TID ratios were 1.19, 1.23 and 1.46 for static and gated MPS on end-diastolic and end-systolic phase, respectively.

What is a perfusion score?

The angiographic perfusion score (APS) is the sum of the Thrombolysis in Myocardial Infarction (TIMI) flow grade (TFG; 0-3) added to the TIMI myocardial perfusion grade (TMPG; 0-3) before and after PCI (total possible grade, 0-12).

What is abnormal perfusion?

Abnormal results may mean your heart isn’t pumping as well as it should. This might happen when you have heart damage or heart disease. Myocardial perfusion scans help us diagnose: Coronary artery disease. Heart failure.

What is an abnormal TID score?

The threshold for an abnormal TID was 1.39 with specificity of 95% and sensitivity of 15% for determining multi-vessel CAD status. We conclude that the level of TID in gated SPECT MPI using regadenoson is associated with the degree of CAD on angiography.

What is abnormal myocardial perfusion?

What is myocardial perfusion defect?

Myocardial perfusion defects have been shown in patients with abnormal intraventricular conduction. These defects have been ascribed to regional differences in myocardial blood flow caused by the abnormal activation.

What is a perfusion defect in the heart?

Fourth, myocardial perfusion defects (F2, F3)—regions in the LV myocardium in which blood flow has been obstructed—are detected qualitatively and semiquantitatively. Perfusion defects are apparent qualitatively as gray-black blotches pervading the LV myocardium (F2, F3).

What factors affect perfusion?

The ability to perfuse and oxygenate tissues is affected by four main factors;

  • Cigarette smoking.
  • Vascular disease.
  • Anaemia.
  • Other disease.

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