IJCS | Volume 31, Nº4, July / August 2018

338 stable coronary artery disease. Arq Bras Cardiol. 2014;103(2 Suppl 2):1- 56. doi: http://dx.doi.org/10.5935/abc.2014S004. 5. Sociedade Brasileira de Cardiologia. I Diretriz da Sociedade Brasileira de Cardiologia sobre Cardiologia Nuclear. Arq Bras Cardiol. 2002;78(Suppl 3):1-42. 6. Sant’Anna FM, da Silva ER, Batista LA, BritoMB, Ventura FM, FerrazHA. What is the angiography errorwhen definingmyocardial ischemia during percutaneous coronary interventions? Arq Bras Cardiol. 2008;91(3):162-7. doi: http://dx.doi.org/10.1590/S0066-782X2008001500007. 7. Pijls NH, De Bruyne B, Peels K, Van Der Voort PH, Bonnier HJ, Bartunek J Koolen JJ, et al. Measurement of fractional flow reserve to assess the functional severity of coronary artery stenoses. N Engl J Med. 1996;334(26):1703-8. doi: 10.1056/NEJM199606273342604. 8. Melikian N, De Bondt P, Tonino P, De Winter O, Wyffels E, Bartunek J, et al. Fractional flow reserve and myocardial perfusion imaging in patients with angiographic multivessel coronary artery disease. JACC Cardiovasc Interv. 2010;3(3):307-14. doi: 10.1016/j.jcin.2009.12.010. 9. Christou MA, Siontis GC, Katritsis DG, Ioannidis JP. Meta-analysis of fractional flow reserve versus quantitative coronary angiography and noninvasive imaging for evaluation of myocardial ischemia. Am J Cardiol. 2007;99(4):450-6. doi: 10.1016/j.amjcard.2006.09.092. 10. Crea F, Camici PG, Merz CN. Coronary microvascular dysfunction: an update. Eur Heart J. 2014;35(17):1101-11. 11. Schelbert HR. FFR and coronary flow reserve: friends or foes?. JACC Cardiovasc Imaging. 2012;5(2):203-6. doi: 10.1016/j.jcmg.2011.12.003. 12. Berry C. Fractional flow reserve, coronary flow reserve and the index of microvascular resistance in clinical practice. Radcliffe Cardiology. Feb. 2014:1-6. 13. Lee JM, Jung JH, Hwang D, Park J, Fan Y, Na SH, et al. Coronary flow reserve and microcirculatory resistance in patients with intermediate coronary stenosis. J AmColl Cardiol. 2016;67(10):1158-69. doi: 10.1016/j. jacc.2015.12.053. Issa et al. Comparison between Fraction Flow Reserve and SPECT in Myocardial Ischemia Int J Cardiovasc Sci. 2018;31(4)333-338 Original Article This is an open-access article distributed under the terms of the Creative Commons Attribution License