Anatomy and Physiology in a Single Non-invasive Test: CTA-derived FFRCoronary CT angiographyImagingFactional flow reserveCoronary artery diseasePurpose of Review With the development and continued technological advances in regard to computed tomography (CT) platforms, cardiac computed tomography (cCTA) has...
1 CT 血流储备分数 ( CT derived fractional flow reserve,CT-FFR) FFR 是心肌最大充血状态下的 狭窄远端冠状动脉内平均压与冠状动脉口部主动脉 平均压的比值,能够反应冠状动脉的缺血性狭窄,以 及指导介入治疗,是评价冠状动脉生理功能的" 金 标准" ,但因其有创且价格昂贵,临床应用受限[17] . 近年来,CT-FFR...
•统计学分析 –统计软件：MedCalcSoftware,Ostend,Belgium–诊断准确性参数：敏感性、特异性、阳性预测值、阴 性预测值–CTP分析前后敏感性、特异性的比较：McNemartest–CTP分析前后诊断准确性的变化：净重新分类指数 （NRI）–观察者间的一致性：Cohenkappavalue–CTP分析前后诊断信心的比较：Wilcoxonsign-rank tes ...
Two new modifiers were also added: modifier I (ischemia) indicating that an ischemia test with CT has been performed (either CT-FFR or stress CTP) and if the result was positive (+), negative (-) or borderline (+/-); and modifier E (exceptions) to denote the presence of non-ather...
Two new modifiers were also added: modifier I (ischemia) indicating that an ischemia test with CT has been performed (either CT-FFR or stress CTP) and if the result was positive (+), negative (-) or borderline (+/-); and modifier E (exceptions) to denote the presence of non-athe...
腺苷负荷动态CT心肌灌注对冠状动脉CTA血管狭窄严重程度再分 类的附加价值 ;1.目的 •评价腺苷负荷动态CT心肌灌注〔ASDCTP〕的附加价值 •和单独运用冠状动脉CTA〔CCTA〕检测冠状动脉狭窄50％和70％〔直径〕这两个阈值相比较 ;2.资料和方法 •入组病例•延续34例疑心冠心病患者〔年龄65±11岁，79％的男性〕...
(LAD) coronary arteries were created. Ten patients were used to optimize the methodology, and four patients to test this methodology. Time-averaged ESS (TAESS) was calculated for both coronary models applying patient-specific physiological data available at the time of imaging. For data analysis, ...
The aim of our study was to compare diagnostic accuracies of coronary CTA, CTA based FFR, and ICA, with invasive FFR as the reference standard in patients with intermediate stenosis on CTA.96 intermediate stenoses (50-90%) from 90 subjects, with intermediate pre-test probability of CAD, ...
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