冠脉造影示右冠主干狭窄约50% 冠状动脉CTA( coronary angiography CCTA)是CT发展到64排后才被广泛应用的技术,即从肘静脉注入对比剂,当团注对比剂到达升主动脉时,用CT快速扫描冠状动脉。利用各种后处理方法,多方式显示冠脉结构及管腔情况。 各种方式显示冠脉 经对比研究,CCTA的图像质量,9...
CT-FFR是一项无创的图像后处理技术,基于常规冠状动脉CT血管成像(coronary CT angiography ,CCTA)的数据、利用人工智能后处理技术测得。CT-FFR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,采用计算流体力学的方法来模拟冠状动脉内血流与...
CT Angiography. JACC Cardiovasc Imaging. 2020 Jan;13(1 Pt 1):172-175. [2] Westra J, Li Z, Rasmussen LD, et al. One-step anatomic and function testing by cardiac CT versus second-line functional testing in symptomatic patients with coronary artery stenosis: head-to-head comparison of CT-...
Coronary artery diseaseCoronary computed tomography angiographyDiagnostic valuePredictive valueRadiation doseTechnical advancements in computed tomography have provided the basis for safe, rapid, noninvasive detection of coronary artery disease with high diagnostic accuracy. While there are well-established ...
recurrent chest pain after myocardial revascularization is a common postoperative presentation.4The long-term clinical outcome after surgery is dependent on the patency of the bypass grafts and the progression of native coronary artery disease.5-7Conventional coronary angiography is traditionally used to ...
心脏冠状动脉造影(Coronary CT angiography); 需打显影剂 心脏钙沉淀值(Calcium scoring) 无镜大肠造影(Virtual colonoscopy); …www.dmg.net|基于1 个网页 3. 冠状动脉电脑断层造影 冠状动脉狭窄(coronary artery stenosis)、冠状动脉电脑断层造影(coronary CT angiography)::: 冠状动脉电脑断层造影 陈…homepage.vgh...
Coronary computed tomography angiographyAtrial fibrillationCoronary artery diseaseComputed tomographyCoronary computed tomography angiography (CTA) has become a very useful non-invasive test in the evaluation of coronary artery disease (CAD). Patients with arrhythmias, particularly atrial fibrillation (AF), ...
注:CCTA为冠状动脉CTA(Coronary CT Angiography) CT的优势及不足:CT具有空间分辨率高、成像速度快、覆盖范围大,处理后可进行任意切面的多平面成像和三维成像的特点,所以是显示心脏和大血管解剖的最佳方法,主要用于心血管疾病的解剖学评价。 CT的不足在于检查具有放射性,需要使用碘对比剂(碘过敏和肾功能不全为禁忌证...
CAD-RADS 2.0版以冠状动脉狭窄程度作为评估的核心内容,根据患者最严重的管腔狭窄提供对应的等级,并遵循狭窄分级、斑块负荷和修饰因子的顺序依次评估;新版还特别指出可以依据冠状动脉CT血流储备分数(coronary CT angiography derived fractional flow reserve,CT-FFR)或CT心肌灌注成像(CT perfusion,CTP)进行缺血评估,以便加强...
CAD-RADS 2.0版以冠状动脉狭窄程度作为评估的核心内容,根据患者最严重的管腔狭窄提供对应的等级,并遵循狭窄分级、斑块负荷和修饰因子的顺序依次评估;新版还特别指出可以依据冠状动脉CT血流储备分数(coronary CT angiography derived fractional flow reserve,CT-FFR)或CT心肌灌注成像(CT perfusion,CTP)进行缺血评估,以便加强...