Calculation of fractional flow reserve (HeartFlow FFRCT) for persons who have a coronary CTA that has shown coronary artery disease of uncertain functional significance, or is non-diagnostic; Evaluation of coronary ectasia. Aetna considers CT angiography of cardiac morphology for pulmonary vein mapping ...
Of the remaining 42% (105/251), two were ineligible for FFRCT and there was a 5% (5/103) failure rate. FFRCT led to a change in hypothetical management in 65% (64/98; p<0.001) patients with a functional imaging test cancelled in 17% (17/98) and a diagnostic angiogram cancelled in...
Computational simulations of coronary artery blood flow, using anatomical models based on clinical imaging, are an emerging non-invasive tool for personalized treatment planning. However, current simulations contend with two related challenges – incomplete anatomies in image-based models due to the exclu...
[19] Koo BK,Erglis A,Doh JH,et al.Diagnosis of ischemia-causing coronary stenoses by noninvasive fractional flow reserve computed from coronary computed tomographic angiograms.Results from the prospective multicenter DISCOVER-FLOW (Diagnosis of Ischemia-Causing Stenoses Obtained Via Noninvasive ...
DEEPVESSEL FFR is a AI-enabled, non-invasive CT fractional flow reserve (FFRCT) analysis. It is an augmentative physiological functional assessment of the coronary arteries using coronary computer tomography angiograms. The software can reduce unnecessary invasive testing, improve patient safety, and lo...
Assessment of Coronary Artery Aneurysms Cased By Kawasaki Diesease Using Transluminal Attenuation Gradient Analysis of CT Angiograms 来自 escholarship.org 喜欢 0 阅读量: 22 作者: Gutierrez, Noelia Grande 摘要: Author(s): Gutierrez, Noelia Grande | Advisor(s): Marsden, Alison L | Abstract: ...
A, Multiplanar reformat of a CT angiogram demonstrating obstructive stenosis of the proximal portion of the left anterior descending artery (LAD) and a computed fractional flow reserve (FFRCT) value of 0.62, indicating vessel ischemia. Invasive coronary angiogram demonstrates obstructive stenosis of the...
and evaluated with accuracy, sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) and the area under the receiver operating characteristic (ROC) curve (AUC) , with FFR≤0.8 as the reference for the diagnosis of hemodynamically significant coronary stenosis. ...
11 Tonino PA,DeBruyne B, Pijls NHJ,et al.Fractional flow reserve versus angiography for guiding percutaneous coronary intervention[J]. New Engl J Med,2009,360(3):213-224 12 何继强,陈方.冠状动脉CT造影的无创血流储备分数(FFRCT)在冠心病诊治中的研究进展[J].心肺血管病杂志,2015,34(3):232-235 ...
252 patients were studied with CT, FFRCT and invasive coronary angiography (ICA). The degree of lumen stenosis in 407 coronary lesions was evaluated by blinded CT (visual estimation; 0%, 1-29%, 30-49%, 50-69%, and 70-100%) and QCA (quantitative coronary angiography) core laboratories. ...