Firstly, a modified Tikhonov regularization ct image reconstruction algorithm from limited-angle is proposed.
首先,提出了一种基于改进正则化方法的有限角度CT图像重建算法。
A new kind of ct image reconstruction algorithm named Intermediate Function algorithm is presented in this paper. This algorithm can be used both in fan-beam and cone-beam scan.
本文提出的中间函数重建算法,是一种可以应用于扇束和锥束扫描的图像重建算法。
In case of no way to make synchronizing between the flash and the rotating, one has to identify the Angle of all the random projections on the Sinogram before doing ct image reconstruction.
在闪光无法与旋转物体角移严格同步时,为进行CT图像重建,需对这些随机投影的投影角进行识别和确定其在正弦图上的位置。
Probe into the value of the spiral CT 3-dimensional image reconstruction used in the diagnosis of the complicated membrum minor articulus trauma.
探讨CT三维重建成像对诊断四肢复杂小关节外伤的价值。
Methods The research is carried out through such aspects as the machine structure, image reconstruction method, scanning function, equipment self-restraint function of 16 slices multi-row spiral CT.
方法:对16层多排螺旋CT的机器结构、图像重建方法、扫描功能、设备自制功能等方面展开研究。
The geometric error of axial image reconstruction increases with the increase of CT scan slice thickness, due to CT partial volume effect.
重建CT图像的前后方向的几何误差是随着扫描层厚增加而增加,主要是由于CT扫描的部分容积效应影响。
In practical clinic application, the 3d reconstruction of the single-modality medical image (ct, MRI) can not provide enough information for clinical doctors.
在临床的实际应用中,单模态的医学图像(CT,MRI)的3d重建不能提供医生所需要的足够信息。
Objective: To evaluate the clinical application of image reconstruction technique after volumetric scanning (spiral ct, SCT) in cervical syndrome.
目的:探讨颈椎病螺旋CT (SCT)容积扫描后图像重建技术的临床应用价值。
Methods: a Finite Element Model of human mandible is developed from ct scan images by the technologies of three-dimensional reconstruction, image processing and meshing.
方法:根据人体下颌骨的螺旋CT扫描图像,利用三维重建、图像处理和网格划分技术,建立人体下颌骨的三维有限元模型。
Objective: to discuss the reference value of the measurement of anatomy structures related to endoscopic sinus surgery (ESS) on ct sagittal reconstruction image.
目的:探讨CT矢状位重建图像上测量与鼻内窥镜手术相关解剖结构对鼻内窥镜手术的参考价值。
A finite element model of human mandible is developed from ct scan images by the technologies of three-dimensional reconstruction, image processing and meshing.
根据人体下颌骨的螺旋CT扫描图像,利用三维重建、图像处理和网格划分技术,建立了人体下颌骨的三维有限元模型。
Methods 6 patients with meningioma underwent 16 slice spiral ct, the image data were downloaded to workstation for reconstruction.
方法使用16层螺旋CT对6例脑膜瘤患者进行增强螺旋CT扫描,将采集的图像信息传入工作站对其进行多种重建。
The image reconstruction of industrial X-CT belongs to image reconstruction with narrow fan-beam scan mode.
高能X射线工业CT机的图像重建属窄角扇束扫描方式下的图像重建。
Objective to investigate the optimum scanning parameters for multi-slice spiral ct aorta imaging so as to emphasize the contrast delay time and the method of image reconstruction.
目的:研究多层螺旋CT主动脉成像技术的最佳扫描参数,强化延时时间及图像重建方法。
Computerized tomography (ct) and synthetic aperture radar (SAR) are two of the most important fields in image reconstruction.
计算机层析成像技术(CT)和综合孔径雷达(SAR)是图像重建技术应用的两个重要领域。
Conclusion The optimized injection rate and reconstruction matrix parameters of lower limb ct angiography could improve image quality.
结论正确的注射速率和重建方法选择是提高螺旋CT下肢动脉血管成像质量的关键。
Registrating of CT images is the important part of CT image 3_D reconstruction.
将CT片图像准确地配准,是连续CT断层图像三维重建的重要步骤。
Three dimensions reconstruction of CT image gives a intuitionistic image of body. It is convenient to observation and operation.
医学图像三维重建为人体结构提供了真实、直观的反映,便于医学人员对病灶的观察及手术的进行。
In this paper, the techniques of image reconstruction for spiral CT are introduced systemically. Combined with experience in actual work, the significance of its clinical application is discussed.
系统地介绍了多层螺旋CT图像重建的各项技术,并综合实际工作经验讨论其临床应用价值。
Principle of seismic ct technique and several mathematic methods for realizing image reconstruction are briefly introduced herein. Necessary errors corrections are pointed out.
本文简要介绍了地震CT技术的方法原理及实现图像重建的几种数学方法,指出了必要的误差校正处理。
Objective To investigate the influence of scanning and reconstruction parameters on image quality in multi-slice ct angiography (MSCTA).
目的探讨多层面螺旋CT血管成像(MSCTA)中扫描参数和重建方法的影响。
Methods Multi-slice Helical CT scanning was performed in 46 patients with scapular fracture. scapular 3D image reconstruction was carried out.
方法对46例肩胛骨折患者进行多螺旋CT扫描,重建肩胛骨表面遮盖法( SSD)图像。
Conclusion ct 3d reconstruction can provide patients with fracture of acetabulum an objective image and help to select a suitable fixation method.
结论CT三维重建为髋臼骨折患者术前提供客观、直接、真实图像,便于选择合理的内固定方法。
Conclusion Image quality of 64-slice ct coronary angiography affected by the patient's heart rate, fluctuation of heart rate, breathing artifact and reconstruction phase.
结论64层螺旋ct冠状动脉成像质量受到患者心率、心率波动幅度、呼吸运动伪影及重建时相的影响。
A novel registration algorithm is presented for ct cerebrovascular medical image 3-d reconstruction based on the mutual location information of individual contours of the image set.
在CT脑血管医学图像断层间三维重建图形配准中,提出了基于图像内部各个血管轮廓间相对位置信息的优化新算法。
Objective To analyze experimentally the influence of changing mAs and reconstruction slice thickness on spiral ct image noise.
目的通过实验分析重建层厚的改变对CT图像噪声的影响。
Objective To obtain the CT image 3 D reconstruction of head and neck region of the first Chinese visible human.
目的对首例中国可视化人体头颈部CT影像进行三维重建研究。
The mark points in ct image series are base for image matching and 3_d image reconstruction. How to locate the mark points efficiently and exactly is a desirable question to research.
CT图像序列中的标记点是CT图像配准和三维重建的基础,如何快速、准确地对标记点定位是一个值得研究的重要问题。
To investigate the clinical value of constructing PNL pathway using the 2d (2-dimensional) ct reconstruction to image the kidney and nearby organs.
通过对肾脏及周围脏器的CT二维重建成像,探讨CT二维成像指导安全建立PNL手术通道的的临床价值。
To investigate the clinical value of constructing PNL pathway using the 2d (2-dimensional) ct reconstruction to image the kidney and nearby organs.
通过对肾脏及周围脏器的CT二维重建成像,探讨CT二维成像指导安全建立PNL手术通道的的临床价值。
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