目的：探讨影响脑血管造影图像质量的因素。
Objective: to study the factors that affect image quality on cerebral angiography.
本文讨论了不同查找表算法对数字减影血管造影图像的影响。
In this article, the effect of different LUT algorithms on digital subtraction angiography images is introduced.
结果表明：使用不同的输出查找表算法，会得到不同效果的数字减影血管造影图像。
The result reveals that different LUT algorithms can bring about different effects of image.
在血管造影图像中，精确估计血管中心线和宽度是血管疾病量化与可视化诊断的先决条件。
In the X-Ray angiogram, the precise estimation of vascular centerlines and widths is very important for the quantitative and visualized diagnosis of blood vessel disease.
通过分析冠状动脉血管造影图像序列，计算出相关的血管运动参数，得到对心脏运动的定量估计。
Coronary angiograms are analyzed to estimate related dynamic parameters for coronary vessels and quantitative assessment of cardiac motion is obtained.
首先采用反锐化滤波器对血管造影图像进行对比度调整，然后通过频域高通滤波去除背景中的一致性成分。
We first employed the unsharp masking to adjust the contrast of angiograms, and then removed the consistent component of low frequency in frequency domain by high-pass filtering.
根据本发明的一个实施例，心脏的FEM可以是使用患者特定的CT、MRI或血管造影图像产生的患者特定的模型。
According to an embodiment of the present invention, the FEM of the heart can be a patient specific model generated using patient specific CT, MRI, or angiogram images.
目前，临床主要通过基于二维dsa的血管造影图像来诊断病情，但是准确性和客观性较差，对人体有创伤，且价格昂贵。
At present, 2d DSA images are widely used in clinic diagnosis. However they are invasive and expensive, and have low accuracy and objectivity.
目的：对比分析糖尿病视网膜病变患者的光学相干断层扫描（OCT）与荧光血管造影（FFA）图像。
Objective: Comparative Analysis of diabetic retinopathy in patients with optical coherence tomography (OCT) and fluorescein angiography (FFA) image.
采用光流法，由单面冠状动脉造影图像序列估计冠状动脉血管的二维运动。
An optical flow based approach was presented to estimate coronary arterys two-dimensional motion from a sequence of single-plane angiographic images.
方法：采用数字减影心血管造影机(dsa)，对38例不孕患者行hsg并记录图像。
Methods: To perform HSG in 38 sterile patients with DSA and write down the picture.
材料与方法：对26例经周围静脉团注法多层螺旋ct血管造影，图像用MIP和VRT重建。
Materials and Methods: Use around vein mass injection ct Angiography in 26 patients, the angiographic images were obtained with MIP and VRT.
提出一种新的造影图像心血管边缘提取方法———最大成本法。
A new method called Max cost is presented to detect the heart vessel boundary of angiogram.
目的探讨螺旋CT血管造影（SCTA）3D重建图像技术在鞍区肿瘤治疗中的应用价值。
Objective To investigate the clinical value of spiral CT angiography (SCTA) and 3D surface reconstruction applied in patients of sellar area neoplasms.
应用三维数字减影血管造影可以减少总曝光次数（P<0.01），不仅在选取参考图像时曝光次数减少（P<0.01），而且在手术过程中曝光次数也减少（P<0.01）。
The number of DSA exposures was decreased in group B(P<0.01), not only to determine the working projection(P<0.01), but also during the procedure(P<0.01).
结论：多层螺旋CT门静脉容积显示技术三维成像是快捷而有效的无创性血管造影术，可为临床提供更优质的图像和更多的信息。
Conclusion: Multi - slice ct portography with VR display is a fast noninvasive and effective method and is able to afford more information for clinic appliance.
在数字减影血管造影中，常要用配准技术来消除因病人运动而形成的减影图像中的运动伪影。
In digital subtraction angiography, registration techniques were frequently used to reduce motion artifact in subtracted image because of patient motion.
本文基于数学形态学对CT血管造影（CTA）图像进行去骨方法研究。
The CTA (Computed Tomography Angiography, CTA) bone removal method was studied in this paper which was based on mathematical morphology.
方法：6例肺栓塞病人行多层螺旋ct血管造影检查，结合三维成像技术进行图像分析。
Methods 6 patients suspected of pulmonary embolism were examined with MSCT. Three-dimensional imaging methods were used in every case.
提出了一种自动提取数字造影血管图像中2维血管树中轴的新方法。
In this paper, a new automated approach is proposed to extract the centerlines from 2d angiogram images.
采用基于特征的光流法，由单面冠状动脉造影图像序列估计二维血管的运动。
The method of generating the image sequence and ground truth based on ray - tracking in the optical flow;
采用基于特征的光流法，由单面冠状动脉造影图像序列估计二维血管的运动。
The method of generating the image sequence and ground truth based on ray - tracking in the optical flow;
应用推荐