重建

Abstract］ Objective To evaluate the role of three-dimensional （3D） digital subtraction angiography in the diagnosis and treatment of symptomatic intracranial arterial stenosis.Methods Stent-assisted angioplasty was performed on 30 patients with symptoms of intracranial artery stenosis by 3-dimesion（3D） method.These imagings were reviewed by different locations to get information of optimal projection angle in 2D angiography.

目的 探讨三维重建技术在颅内动脉狭窄的诊断和治疗中的应用方法对使用具有三维重建功能的美国Advantx LCN+型X线血管造影机进行的30例症状性颅内动脉狭窄的患者的支架成形术进行回顾性分析。

In the first part of the paper, both fuzzy theory and anisotropic diffusion method are applied to PET reconstruction.

本文的内容主要分为两部分：基于模糊理论的PET重建方法以及基于小波变换的PET重建方法。

An experimental study in canine models was performed to investigate the feasibility and theoretic base of the combination of bladder innervations and electric stimulation to restore the micturition function of atonic bladder which caused by sacral cord injury.

脊神经缝合可以使膀胱的骶髓排尿中枢上移得以重建，从而能弥补膀胱控制器电刺激排尿术不能应用于圆锥部损伤所致弛缓性膀胱排尿功能重建的缺陷。

Objective Through 68 patients undergoing audile reconstruction with carbon material, to discuss the relative problems of carbon materials in the audile reconstruction.

目的：通过对应用了炭材料的听力重建手术68耳的分析，探讨炭质材料在听力重建手术中的相关问题。

ObjectiveThrough 68 patients undergoing audile reconstruction with carbon material, to discuss the relative problems of carbon materials in the audile reconstruction.

目的：通过对应用了炭材料的听力重建手术68耳的分析，探讨炭质材料在听力重建手术中的相关问题。

In the research of inverse problem of MITT, a filtered back projection algorithm was carried out to reconstruct the image.

在逆问题的研究中，采用滤波反投影算法对初始热声源分布图像进行了重建，并分析了重建图像质量。

This algorithm can provide images superior to those obtained by commonly used linear back projection algorithm with a similar reconstruction time.

该方法与目前广泛采用的线性反投影算法重建图象时间相当，但重建图象质量有显著改善。

Computer simulation studies were carried out to compare the DR algorithm with the two popular algorithms: the time-domain reconstruction and the filtered back projection.

通过计算机仿真实验比较反卷积重建法和当前流行的时域重建法与滤波反投影法的性能。

Key words: windows function; image reconstruction; convention back projection; fan beam scan model

通过实验，验证了基于窗函数的卷积反投影图像重建算法可以有效地提高重建图像的质量。

Finally, a new method of errors analysis (midpoint and barycentric measure method )are presented to measure the errors of surface reconstruction, strong practicability shows that this error measure method is feasible to testify the validity of surface reconstruction.

最后，本文对重建曲面进行了误差分析，提出了一种新的误差度量方法，即中点、重心误差度量法；此方法运算效率高，并在一定程度上可以衡量曲面重建效果的好坏。因此有很强的实用性。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。