CTFFR(Fractional Flow Reserve Based on Coronary Computed Tomography Angiography,基于冠状动脉CT的血流储备分数)结合冠脉CTA解剖和FFR功能评价,不需特殊的扫描方案和使用额外的药物,只需以静息CTA数据为基础,采用计算流体力学(CFD)方法来模拟冠脉内血流与压力,再经过复杂的图像处理和运算过程,可以获取冠状动脉树任意点上...
利用基于人工智能技术的冠状动脉FFR CT软件计算左冠状动脉前降支纵深型心肌桥的FFR CT值。以0.80为界,将所有患者分为FFR CT正常组(FFR CT>0.80)及FFR CT异常组(FFR CT≤0.80),分析FFR CT异常与左前降支纵深型心肌桥位置、长度、深度、收缩期狭窄率之间的关系。通过受试者工作特征(ROC)曲线分析心肌桥长度、...
(CCTA)-based fractional flow reserve (CT-FFR) and plaque quantitative analysis in predicting adverse outcomes in patients with non-obstructive coronary heart disease (CAD). Methods Clinical data of ...
136The use and efficacy of ffr-ct – a real-world multi-centre audit of clinical data and cost-analysisdoi:10.1136/heartjnl-2022-BCS.136Introduction UK and US Guidelines now recommend HeartFlow FFR-CT (Fractional Flow Reserve-Computed Tomography) in stable chest pain (CP), but its clinical ...
目的基于冠状动脉CTA影像的无创血流储备分数(FFR-CT)与有创冠状动脉血流储备分数(FFR)的有效性对照研究。 方法本研究共回顾性纳入47例(61支病变血管)患者,采用杭州脉流科技有限公司的AccuFFR ®ct原型软件系统(AccuFFR ®ct, version 1.0)计算每个狭窄处的FFR-CT值,并与有创FFR值进行比较,以FFR≤0.8为具有血...
Late-breaking FFR clinical trials find issues with optimal stenting, FFR-CT did not save money and imaging imaging combined with FFR improves outcomes
MUNICH — Compared with standard coronary angiography, noninvasive assessment of fractional flow reserve by CT provided a more accurate determination of which lesions require invasive evaluation, according to new data from the DeFACTO study. ...
目前,影像FFR是无创FFR的典型代表,按照FFR值测量方法不同,影像FFR主要包括CTFFR、FFRangio和FFRivus/oct 。 CTFFR(Fractional Flow Reserve Based on Coronary Computed Tomography Angiography,基于冠状动脉CT的血流储备分数)结合冠脉CTA解剖和FFR功能评价,不需特殊的扫描方案和使用额外的药物,只需以静息CTA数据为基础,...
Analysis per vessel or territory, using invasive fractional flow reserve (FFR) as reference. The area under the curve (AUC) for computed tomography (CT) myocardial perfusion imaging (MPI) and FFR (0.85) was significantly higher than for CT MPI (0.78; p = 0.01), computed tomography angiography...
Diagnostic performance of non-invasive fractional flow reserve derived from coronary computed tomography angiography in suspected coronary artery disease: the NXT trial (Analysis of Coronary Blood Flow Using CT Angiography: Next Steps) J Am Coll Cardiol, 63 (2014), pp. 1145-1155 View PDFView articl...