目的探讨锥形束CT用于调强放疗分次间摆位误差测量。
Objective: This work was to analyze the set-up errors in image guided IMRT for tumors using the cone-beam computed tomography (CBCT).
对由锥形束x线投影重建体积数据的直接体积成像方法进行了理论研究。
The direct volume imaging (DVI) means the reconstruction of volume data from a series of cone beam X ray 2d projections.
摘要目的：探讨锥形束CT（CBCT）对颌下腺结石的临床诊断价值。
Abstract : Objective: To discuss the clinical value of cone beam computed tomography (CBCT) in diagnosis of submandibular gland and Wharton's duct sialoliths.
基于现有的锥形束普适轨道的重构公式，研究了非螺旋轨道的探测器效率问题。
Using the present cone beam reconstruction formula for general trajectory, we have investigated the issue of detector efficiency for non-helical trajectory.
针对锥顶轨迹为单圆的锥形束体积重建问题，提出了一种基于平板检测器的T FDK算法。
A volumetric reconstruction algorithm named FT-FDK (flat-panel based tent FDK algorithm) is presented based on the ideas of Grasss T-FDK algorithm.
与加速器一体的锥形束ct可以随时发现肿瘤位置、形态、大小的变化，使放射线实时对准肿瘤。
With accelerator body's cone ct may momentarily discover that the tumor position, the shape, the size change, causes the radioactive rays real-time alignment tumor.
目的：总结上颌窦提升在材料研究库、牙颌面专用锥形束CT及超声骨刀在临床中的应用等方面的新进展。
OBJECTIVE: To summarize the research progress of materials research, clinical applications of maxillofacial cone CT and ultrasound bone knife in maxillary sinus augmentation.
摘要目的采用锥形束ct (CBCT)探讨上颌第一前磨牙根管的解剖形态，了解其常规形态及变异形态。
Abstract: Objective to investigate the canal morphology of maxillary first premolar using cone-beam ct (CBCT) and to know its generic and variant forms.
利用掺杂KNSBN晶体，报道了两束异常偏振光所引起的各向异性锥形衍射现象。
The anisotropic conical diffraction generated by two extraordinary polarized beams with doped KNSBN crystals is reported.
在原有模糊权重优化算法基础上提出一种简化方法。采用线性主射束替代三维锥形射束的方法消除了锯齿现象。
A simplified method based on fuzzy weight function is proposed in this paper. 3d taper beam is replaced with line beam in the new method, which can avoid sawtooth phenomenon.
本实用新型钢绞线束穿索器，主要由底面面积一致的圆柱形部和圆锥形部组成，两者 均为钢板折弯焊接而成；
The steel stranded wiring harness reeving device is mainly composed of a cylindrical part and a conical part which have the consistent bottom area and are both bended and welded by steel plates;
本实用新型钢绞线束穿索器，主要由底面面积一致的圆柱形部和圆锥形部组成，两者 均为钢板折弯焊接而成；
The steel stranded wiring harness reeving device is mainly composed of a cylindrical part and a conical part which have the consistent bottom area and are both bended and welded by steel plates;
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