CBS 2019
CBSMD教育中心
English

急性冠脉综合征

科研文章

荐读文献

Intensive Care Utilization in Stable Patients With ST-Segment Elevation Myocardial Infarction Treated With Rapid Reperfusion Effect of a Restrictive vs Liberal Blood Transfusion Strategy on Major Cardiovascular Events Among Patients With Acute Myocardial Infarction and Anemia: The REALITY Randomized Clinical Trial Dynamic Myocardial Ultrasound Localization Angiography Outcome of Applying the ESC 0/1-hour Algorithm in Patients With Suspected Myocardial Infarction Shock Team Approach in Refractory Cardiogenic Shock Requiring Short-Term Mechanical Circulatory Support: A Proof of Concept Long-term outcomes after myocardial infarction in middle-aged and older patients with congenital heart disease-a nationwide study Effects of clopidogrel vs. prasugrel vs. ticagrelor on endothelial function, inflammatory parameters, and platelet function in patients with acute coronary syndrome undergoing coronary artery stenting: a randomized, blinded, parallel study Improved Outcomes Associated with the use of Shock Protocols: Updates from the National Cardiogenic Shock Initiative Ticagrelor or Prasugrel in Patients with Acute Coronary Syndromes SCAI clinical expert consensus statement on the classification of cardiogenic shock: This document was endorsed by the American College of Cardiology (ACC), the American Heart Association (AHA), the Society of Critical Care Medicine (SCCM), and the Society of Thoracic Surgeons (STS) in April 2019
|<<... 19 20 21 22 23 24 25 ...>>|

Clinical Trial2018 Feb 6;71(5):499-509.

JOURNAL：J Am Coll Cardiol. Article Link

Effect of Plaque Burden and Morphology on Myocardial Blood Flow and Fractional Flow Reserve

Driessen RS, Stuijfzand WJ, Knaapen P et al. Keywords: coronary artery disease; coronary computed tomography angiography; fractional flow reserve; myocardial perfusion; plaque; positron emission tomography

ABSTRACT

BACKGROUND - Atherosclerotic plaque characteristics may affect downstream myocardial perfusion, as well as coronary lesion severity.


OBJECTIVES - This study sought to evaluate the association between quantitative plaque burden and plaque morphology obtained using coronary computed tomography angiography (CTA) and quantitative myocardial perfusion obtained using [15O]H2O positron emission tomography (PET), as well as fractional flow reserve (FFR) derived invasively.


METHODS - Two hundred eight patients (63% men; age 58 ± 8.7 years) with suspected coronary artery disease were prospectively included. All patients underwent 256-slice coronary CTA, [15O]H2O PET, and invasive FFR measurements. Coronary CTA-derived plaque burden and morphology were assessed using commercially available software and compared with PET perfusion and FFR.

RESULTS - Atherosclerotic plaques were present in 179 patients (86%) and 415 of 610 (68%) evaluable coronary arteries. On a per-vessel basis, traditional coronary plaque burden indexes, such as plaque length and volume, minimal lumen area, and stenosis percentage, were significantly associated with impaired hyperemic myocardial blood flow (MBF) and FFR. In addition, morphological features, such as partially calcified plaques, positive remodeling (PR), and low attenuation plaque, displayed a negative impact on hyperemic MBF and FFR. Multivariable analysis revealed that the morphological feature of PR was independently related to impaired hyperemic MBF as well as an unfavorable FFR (p = 0.004 and p = 0.007, respectively), next to stenosis percentage (p = 0.001 and p < 0.001, respectively) and noncalcified plaque volume (p < 0.001 and p = 0.010, respectively).

CONCLUSIONS - PR and noncalcified plaque volume are associated with detrimental downstream hyperemic myocardial perfusion and FFR, independent of lesion severity.

Copyright © 2018 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.
>CBS CBS 2019

> CBS 2019

> CBS 2019 注册

> CBS 2019 会议日程

> CBS 2019 学术征集

> CBS 2019 热点

 CBSMD

> CBSMD 网站注册

> 教育中心

> 荐读文献

> Top 10 阅读文献

> 文献导读
CBS 2019 CBS 2019 主席团 教育中心 科研动态
Copyright ⓒ CBS MD Nanjing China. All rights reserved. 京ICP备16025898号-11
联系我们| Top