RT Journal Article SR Electronic T1 Anatomic or Functional Evaluation as an Initial Test for Stable Coronary Artery Disease: A Propensity Score Analysis JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 1364 OP 1369 DO 10.2967/jnumed.115.169318 VO 57 IS 9 A1 Park, Gyung-Min A1 Kim, Young-Hak A1 Yun, Sung-Cheol A1 Ahn, Jung-Min A1 Choi, Hyo-In A1 Roh, Jae-Hyung A1 Lee, Pil Hyung A1 Chang, Mineok A1 Lee, Sang Gyu A1 Jo, Min-Woo A1 Park, Duk-Woo A1 Kang, Soo-Jin A1 Lee, Seung-Whan A1 Lee, Cheol Whan A1 Moon, Dae Hyuk A1 Park, Seong-Wook A1 Park, Seung-Jung YR 2016 UL http://jnm.snmjournals.org/content/57/9/1364.abstract AB Little data are available to compare the clinical implications of coronary angiography (CAG) or myocardial perfusion imaging (MPI) as an initial evaluation for stable coronary artery disease (CAD). Methods: From national health insurance claims data in South Korea, patients aged 18 y or older without a known history of CAD, who underwent CAG or MPI for the diagnosis of stable CAD between 2009 and 2013, were enrolled. Patients were divided into CAG (n = 117,134) and MPI (n = 19,932) groups. The primary endpoint, defined as a composite of all-cause death and myocardial infarction, was compared by a propensity score analysis between the 2 groups. Results: There was a significant increase (39%) in the annual rate of CAG from 23,985 in 2009–2010 to 33,373 in 2012–2013. However, a substantial reduction (41%) in the annual MPI rate was also noted from 6,389 in 2009–2010 to 3,790 in 2012–2013. During the follow-up period (median, 2.4 y; interquartile range, 1.5–3.5), coronary revascularization was more frequently performed in the CAG group (adjusted hazard ratio [aHR] of CAG, 24.15; 95% confidence interval [CI], 19.66–29.68; P < 0.001). However, the incidence of the primary endpoint was significantly higher in the CAG group (aHR, 1.26; 95% CI, 1.17–1.36; P < 0.001). The individual endpoints of death (aHR, 1.16; 95% CI, 1.06–1.25; P = 0.001) and myocardial infarction (aHR, 1.95; 95% CI, 1.60–2.36; P < 0.001) were also higher in the CAG group. Conclusion: As an initial diagnostic test in patients with stable CAD, MPI is associated with a better clinical outcomes than CAG.