LVEF nuclear medicine or echosonogram? Which is more reliable?
I had a nuclear medicine perfusion test and it showd my LVEF to be 46% but my echocardiogram showd it to be 60%. A the test time I was on 240 mg diltiazem and 40 mg Lisinopril daily. I do have a history of bad hypertension. I do suffer from occasional PVC and PAC's. Any opinion? Thanks.
I would go with the MUGA. An echo generally only shows anatomy. Its does show fluid movement, but I don't think that its as reliable as the MUGA. MUGA scans actually calculate the amount of radiotracer that is being pushed out of the left ventricle. Highly sensitive cameras and computers calculate the origin of a radioactive emission that is traveling through the bloodstream. So the computer is actually calculating where the fluid is as opposed to the echo that is imaging the fluid from outside the body. So my suggestion would be that the MUGA is the more accurate of the two.
Thanks for the response. I have a cardiologist telling me the echogram is more reliable and that nuclear is mainly to show perfusion. I am still not sure. Any MD out there to express an opinion tie breaker??
A MUGA and a nuclear medicine stress test (perfusion) are both done by nuclear medicine technologists, but they are different tests. The MUGA stands for multi-gated acquisition; whereas the stress test measures the uptake of the radiotracer of your heart muscle both during rest and stress, then compares the two. I do not know what an echocardiogram does in comparison, but the main point of a stress test is for located blood flow to your heart muscle (and will give you an ejection fraction of your left ventricle), but the MUGA scan gives a more accurate left ventricular ejection fraction because the radioisotope is in your actual blood stream, not your heart muscle.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. Med Help International, Inc. is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.