2025年2月21日 · What is a cardiac CT scan? A cardiac CT angiography (CCTA) scan uses X-rays to take images of your heart and blood vessels. A computer combines the images to create a 3D image of your heart. A CCTA scan is used to see narrowed arteries and blood vessels that supply blood to the heart or other parts of the body.

心血管疾病(cvd)占非传染性疾病的一半左右。冠状动脉狭窄被认为是心血管疾病的主要风险因素。由于其优异的图像分辨率, ct血管造影 (cta)是冠状动脉诊断中广泛使用的无创影像学检查方法之一。

2020年3月17日 · CTA血管减影方法 概述 任务：通过减影的方法分割脑血管。 成像方式：注射增强药物前扫描的CTABrainBaseline图像和注射增强药物之后扫描的CTABrainContast图像。 扩展模块：需要安装SlicerElastix和Sl…

3D-CT angiography (3D-CTA) is useful for the evaluation of intracranial lesions such as cerebral aneurysms, vascular malformations, occlusive disease, and brain tumors. 1 – 11 Although it provides 3D anatomic information on vascular structures that is useful for diagnosis and surgical strategy planning, it does not allow visualization of the hem...

Therefore, we developed a new technique, dynamic 3D-CTA (d 3D-CTA), that yields 3D images of the vasculature and allows assessment of the hemodynamics and of the cerebral perfusion.

目的探究三维ct血管造影（3d-cta）对颅内动脉瘤诊断效能及治疗指导的价值。 方法回顾性分析因蛛网膜下腔出血入院且均接受3D-CTA检查与三维数字减影血管造影（3D-DSA）检查的208例患者临床资料,以3D-DSA检查结果为"金标准"评价3D-CTA在颅内动脉瘤中的诊断效能及在 ...

3d-cta和3d-dsa均可清楚地显示基底动脉尖直径9 mm动脉瘤，并具有更直观的3d效果，真实显示了瘤体形态、瘤颈及动脉瘤与载瘤动脉的空间关系（图 11 cta vr图像；图 12 dsa三维透明法） 图 13~15 病例5：女，54岁，突发意识障碍伴头痛、呕吐2 d。3d-cta考虑左侧大脑后动脉 ...

5 天之前 · This network is a 4-layer U-Net network model, the input is the local slice of CTA 3D image, and the output is corresponding to the prediction of intracranial aneurysm distribution. The network ...

【摘要】目的 探究基于3D-Slicer后处理CT血管造影 (CTA)在颅内动脉瘤夹闭术后复查中的应用价值。方 法 回顾性收集57例动脉瘤夹闭术患者的术后CTA影 像资料，图像后处理方法包括多平面重组(MPR)、 容积再现(VR)及最大密度投影重组(MIP)，并与放射

The results revealed that 3D-CTA was a more effective diagnostic method for identifying calcified plaques in patients with acute coronary artery disease compared with CCA. 3D-CTA demonstrated a significantly better area under curve, sensitivity, specificity, positive predictive value and negative predictive value compared with CCA (P<0.01).