2020年5月2日 · 专门用于对颌面区域成像的锥形束CT（CBCT）的引入，标志着颌面区域成像无论是在数据采集还是在图像重建过程，从2D到3D的转变。 CBCT引起了牙科各个领域的空前兴 …

2023年9月4日 · In this work, a physics-driven approach was investigated that combined robust scatter rejection, raw data correction and iterative image reconstruction to further improve …

2022年11月29日 · Cone-beam computed tomography (CBCT) has minimal image distortion, and important parts can be observed without overlapping. It provides a high-resolution three …

CBCT_seg is a tool for CBCT segmentation based on a machine learning approach. The Convolutional Neural Network (CNN) used is a 2D U-Net. It takes several CBCT scans as …

This study aims to establish the degree of agreement between radiographic diagnosis with 2D intraoral digital radiography in relation to cone beam computed tomography in extracted …

2016年5月18日 · 从成像结构看，CBCT用三维锥形束X线扫描代替常规诊断CT的二维扇形束扫描；与此相对应，CBCT采用一种二维面状探测器来代替常规诊断CT的线状探测器。 由上图可 …

Cone-beam computed tomography (CBCT) scans are sometimes available, so 2D-3D registration is needed for intra-procedural guidance. C-arm radiographs were registered to CBCT scans …

2022年11月12日 · CBCT利用在不同 角度拍摄患者的序列图像进行三维重建，重建算法遵循的几何位置关系即是X射线源-等中心-平板之间的位置关系。 几何位置 旋转矩阵 X射线源到等中心点 …

2018年，美国医学物理学家协会(AAPM)杂志刊登了迭代CBCT(iterative-CBCT)，其使用KV级的iCBCT，可以大大改善加速器机载影像质量，为自适应放疗奠定了影像的基础。

This work demonstrates the feasibility of two-orthogonal-projection-based CBCT (2V-CBCT) reconstruction and dose calculation for radiation therapy (RT) using real projection data, which …