在高风险的NSTE-ACS中,FFR-CT有助于排除血液动力学显著病变的有用性
David Meier1, Daniele Andreini2, Bernard Cosyns3
1Department of Cardiology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.
概括
从CT血管造影 (FFR-CT) 计算的分量流量储备显示,与单独使用CCTA相比,在高风险非ST升高急性冠状动脉综合征 (NSTE-ACS) 患者中识别显著冠状动脉病变的准确性提高. 这可以帮助减少不必要的侵入性手术.
科学领域:
- 心脏病学 心脏病学
- 医疗成像医学成像
- 干预心脏病学 干预心脏病学
背景情况:
- 非ST升高的急性冠状动脉综合征 (NSTE-ACS) 通常需要侵入性冠状动脉血管造影 (ICA).
- 冠状动脉计算机断层扫描血管造影 (CCTA) 和衍生分流储备 (FFR-CT) 提供非侵入性评估.
- 减少不必要的ICA是NSTE-ACS管理中的临床目标.
研究的目的:
- 评估FFR-CT和CCTA在排除高风险NSTE-ACS患者显著冠状动脉病变方面的诊断性能.
- 将FFR-CT和CCTA与侵入性FFR进行比较作为黄金标准.
- 评估FFR-CT的潜力,以尽量减少不必要的侵入性手术.
主要方法:
- 在4个欧洲中心进行前性单臂研究.
- 包括高风险的NSTE-ACS患者.
- 用FFR-CT分析进行CCTA的性能,然后用侵入性FFR进行ICA.
主要成果:
- 168名患者中有151名患者具有足够的CCTA质量进行分析.
- 在患者层面上,FFR-CT的诊断性能比CCTA数字上更高 (例如,准确率为83%与79%).
- 在病变水平上,FFR-CT表现出明显更好的病变检测能力,而不是CCTA (AUC0.84与0.65,p<0.01).
结论:
- 与CCTA相比,FFR-CT在高风险NSTE-ACS患者中提供了更高的诊断准确度和排除重大狭窄症的能力.
- FFR-CT具有更大的能力来识别不需要侵入性干预的患者.
- 通过提高诊断精度,FFR-CT有可能减少不必要的侵入性手术.
相关概念视频
01:25Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT
3
Calcium-Scoring CT ScanA calcium-scoring CT scan, also known as coronary artery calcium (CAC) scan, detects calcium deposits in the coronary arteries. This test assesses the risk of coronary artery disease (CAD), which can lead to cardiovascular events such as angina, heart failure, and sudden cardiac arrest.A calcium-scoring CT scan is generally recommended for individuals at intermediate risk of CAD without symptoms. It includes:Men aged 40-75 and women aged 50-75: Especially those with a...
3
01:30Acute Coronary Syndrome III: Diagnostic studies
3
Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
3
01:28Imaging Studies for Cardiovascular System V: CT
3
Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
3
01:25Ultrasound II: Endoscopic Ultrasound and FibroScan
80
Endoscopic Ultrasound (EUS) and FibroScan are valuable diagnostic tools in gastroenterology and hepatology, each with specific applications and techniques.
Endoscopic Ultrasound (EUS):
Endoscopic Ultrasound (EUS):
80