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 Syma Scans (Muga Scan)


Resting Syma

The purpose of this test is:

  • To measure the contractile function of the heart muscle, mainly the left ventricle.
  • To assess wall motion, cardiac enlargement, hypertrophy, and pumping (ejection fraction).

The Test:
Two injections are given about 20 minutes apart (pyrophosphate and a radioactive tracer). A gamma camera is then used to image the heart.

The test takes about 45 minutes and there are no pre-test instructions.​