PMID- 28528146 OWN - NLM STAT- MEDLINE DCOM- 20180709 LR - 20190123 IS - 1876-7591 (Electronic) IS - 1876-7591 (Linking) VI - 10 IP - 11 DP - 2017 Nov TI - Prognostic Value of Coronary CT Angiography With Selective PET Perfusion Imaging in Coronary Artery Disease. PG - 1361-1370 LID - S1936-878X(17)30260-7 [pii] LID - 10.1016/j.jcmg.2016.10.025 [doi] AB - OBJECTIVES: The purpose of this study was to evaluate the prognostic value of sequential hybrid imaging strategy in which positron emission tomography (PET) perfusion imaging is performed selectively in patients with suspected obstructive coronary artery disease (CAD) on coronary computed tomography angiography (CTA). BACKGROUND: Coronary CTA is an accurate diagnostic test for excluding obstructive CAD. However, the positive predictive value is suboptimal. METHODS: We investigated 864 consecutive symptomatic patients with intermediate probability of CAD who adhered to the sequential imaging approach. PET myocardial perfusion imaging using (15)O-labeled water during adenosine stress was performed when suspected obstructive stenosis was present on coronary CTA. The major adverse events (AEs) including all-cause mortality, myocardial infarction (MI), and unstable angina pectoris (UAP) were recorded. RESULTS: During a median follow-up of 3.6 years, 16 deaths, 10 MIs, and 5 UAPs occurred. Obstructive CAD was excluded by coronary CTA in 462 (53%) patients who had significantly lower annual AE rate than did patients with suspected obstructive stenosis on coronary CTA (0.4% vs. 1.5%; p = 0.003). The latter underwent PET study, on which 195 (49%) had normal and 207 had abnormal perfusion. The annual rate of AEs was 5 times higher in those with abnormal perfusion than with normal perfusion (2.5% vs. 0.5%; p = 0.004). Patients with normal perfusion had AE rate comparable to patients without obstructive CAD on coronary CTA (p = 0.77). CONCLUSIONS: In patients with suspected CAD obstructive disease can be excluded in 53% of patients by coronary CTA, and these patients have good outcome. About one-half (49%) of the remaining patients have normal perfusion and event rate comparable to patients without obstructive CAD on coronary CTA while patients with ischemia have clearly worse outcome. Sequential approach utilizing anatomical imaging by coronary CTA followed by selective functional perfusion imaging is a feasible strategy to diagnose and risk-stratify patients with suspected CAD. CI - Copyright (c) 2017 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved. FAU - Maaniitty, Teemu AU - Maaniitty T AD - Turku PET Centre, University of Turku, Turku, Finland. FAU - Stenstrom, Iida AU - Stenstrom I AD - Turku PET Centre, University of Turku, Turku, Finland. FAU - Bax, Jeroen J AU - Bax JJ AD - Department of Cardiology, Leiden University Medical Center, Leiden, the Netherlands. FAU - Uusitalo, Valtteri AU - Uusitalo V AD - Turku PET Centre, University of Turku, Turku, Finland. FAU - Ukkonen, Heikki AU - Ukkonen H AD - Heart Center, Turku University Hospital, Turku, Finland. FAU - Kajander, Sami AU - Kajander S AD - Turku PET Centre, University of Turku, Turku, Finland. FAU - Maki, Maija AU - Maki M AD - Turku PET Centre, University of Turku, Turku, Finland; Department of Clinical Physiology, Nuclear Medicine and PET, Turku University Hospital, Turku, Finland. FAU - Saraste, Antti AU - Saraste A AD - Turku PET Centre, University of Turku, Turku, Finland; Heart Center, Turku University Hospital, Turku, Finland. FAU - Knuuti, Juhani AU - Knuuti J AD - Turku PET Centre, University of Turku, Turku, Finland; Department of Clinical Physiology, Nuclear Medicine and PET, Turku University Hospital, Turku, Finland. Electronic address: juhani.knuuti@utu.fi. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20170517 PL - United States TA - JACC Cardiovasc Imaging JT - JACC. Cardiovascular imaging JID - 101467978 RN - 0 (Vasodilator Agents) RN - K72T3FS567 (Adenosine) SB - IM CIN - JACC Cardiovasc Imaging. 2017 Nov;10(11):1371-1373. PMID: 28528157 MH - Adenosine/administration & dosage MH - Aged MH - Angina, Unstable/etiology MH - *Computed Tomography Angiography MH - Coronary Angiography/*methods MH - Coronary Artery Disease/complications/*diagnostic imaging/mortality/physiopathology MH - *Coronary Circulation MH - Coronary Stenosis/complications/*diagnostic imaging/mortality/physiopathology MH - Coronary Vessels/*diagnostic imaging/physiopathology MH - Disease Progression MH - Female MH - Humans MH - Kaplan-Meier Estimate MH - Male MH - Middle Aged MH - Multimodal Imaging MH - Myocardial Infarction/etiology MH - Myocardial Perfusion Imaging/*methods MH - *Positron Emission Tomography Computed Tomography MH - Predictive Value of Tests MH - Retrospective Studies MH - Risk Factors MH - Severity of Illness Index MH - Time Factors MH - Vasodilator Agents/administration & dosage OTO - NOTNLM OT - computed tomography angiography OT - coronary artery disease OT - hybrid imaging OT - myocardial perfusion OT - positron emission tomography EDAT- 2017/05/22 06:00 MHDA- 2018/07/10 06:00 CRDT- 2017/05/22 06:00 PHST- 2016/07/05 00:00 [received] PHST- 2016/10/21 00:00 [revised] PHST- 2016/10/27 00:00 [accepted] PHST- 2017/05/22 06:00 [pubmed] PHST- 2018/07/10 06:00 [medline] PHST- 2017/05/22 06:00 [entrez] AID - S1936-878X(17)30260-7 [pii] AID - 10.1016/j.jcmg.2016.10.025 [doi] PST - ppublish SO - JACC Cardiovasc Imaging. 2017 Nov;10(11):1361-1370. doi: 10.1016/j.jcmg.2016.10.025. Epub 2017 May 17.