心脏冠状动脉CT血管成像（coronary CT angiography，CCTA）目前被广泛应用于冠心病诊断、先天性冠状动脉异常诊断、冠状动脉支架植入术后随访等情况的评估，是诊断冠状动脉疾病的主要无创影像检查工具。CCTA通过静脉注入对比剂，行多层螺旋CT扫描，经计算机处理重建得到冠状动脉图像，能够清晰显示冠状动脉血管细节，具有无创和操作...
The radiation dose and the amount of contrast media are the limitation of coronary CT angiography (CTCA). Low dose protocol of contrast media using 80kV has not been elucidated. We compared the radiation dose and image quality of the ultra-low dose protocol using 80kV and standard protocol ...
冠状动脉CT血管造影(coronary computed tomography angiography,CCTA)是目前广泛使用的无创血管成像方法[2],尽管其实现了冠状动脉和斑块的高分辨率三维解剖,但尚未能有效地确定冠心病的生理及病理学特征[3]。 冠状动脉斑块的定量及定性分析可以从...
Reduced intravenous iodinated contrast dose for multi-body part exams Faster total exam acquisition times CT Coronary Angiograms, CT Angiograms of the Thoracic Aorta and CT Cardiac Exams Now Availabe at TSJI Utilizing a new GE Discovery PET/CT scanner we will now provide the full spectrum of ...
Contrast Media Injection Protocols in CT Coronary AngiographyMany parameters influence attenuation patterns and the overall image quality in CCTA. A thorough understanding of the underlying principles and their interaction is necessary to provide the full......
75574 Computed tomographic angiography, heart, coronary arteries and bypass grafts (when present), with contrast material, including 3D image postprocessing (including evaluation of cardiac structure and morphology, assessment of cardiac function, and evaluation of venous structures, if performed 75580 Non...
Comparison of contrast enhancement between bolus-tracking and test-bolus methods on coronary CT angiography[J]. Nihon Hoshasen Gijutsu Gakkai Zasshi, 2020, 76(6): 579-585. DOI: 10.6009/ jjrt.2020_JSRT_76.6.579. [12]...
[CT coronary angiography: examination technique, clinical results, and outlook on future developments] Multislice computed tomography (MSCT) after intravenous contrast agent administration enables visualization of the coronary arteries with high spatial reso... M Dewey,B Hamm - 《Röfo Fortschritte Auf...
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...
Direct visualization of the epicardial coronary arteries is currently the reference standard to confirm the presence or focal severity of coronary luminal disease, or both. For more than 50 years1 the coronary angiogram has been used to define epicardial