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How do you interpret results of a coronary flow reserve test? 

Hi, I was diagnosed with small vessel disease along with the big vessels. They did a coronary flow reserve test with my heart cath. The results were 1.1 in the SVG-OM with the same results in a native graft RCA of 1.1 Can you explain the numbers?  Thank you. 

submitted by Chris from Illinois on 9/17/2013


Patrick J. Cook, MDby Texas Heart Institute cardiologist, Patrick J. Cook, MD    

Hard to advise without knowing the precise anatomy of the disease of the "big vessels". I am also not aware of the use of coronary flow reserve in saphenous vein grafts (SVG's).  The implication is that flow is normal in the SVG's; however,  I'm not sure you can say that, as the efficacy of coronary flow reserve is established only for native vessels. 

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Updated October 2013
Texas Heart Institute Heart Information Center
Through this community outreach program, staff members of the Texas Heart Institute (THI) provide educational information related to the prevention, diagnosis, and treatment of cardiovascular disease. It is not the intention of THI to provide specific medical advice, but rather to provide users with information to better understand their health and their diagnosed disorders. Specific medical advice will not be provided and THI urges you to visit a qualified physician for diagnosis and for answers to your questions.
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