公开(公告)号：US20160029987A1

公开(公告)日：2016-02-04

申请号：US14448842

申请日：2014-07-31

Applicant: GENERAL ELECTRIC COMPANY

Inventor： David Allen Langan ,  Bernhard Erich Hermann Claus

IPC: A61B6/00 ,  A61B6/03

CPC classification number: A61B6/486 ,  A61B6/025 ,  A61B6/032 ,  A61B6/4014 ,  A61B6/481 ,  A61B6/504 ,  A61B6/5205

Abstract: The present disclosure relates various approaches by which mask and contrast projection data may be acquired using a continuous projection acquisition process, without an interruption in acquisition or resetting of the system between the acquisition of the mask projection data and the contrast projection data. In certain implementations, the approaches described herein may be employed with a single-plane or multi-plane tomosynthesis system.

Abstract translation: 本公开涉及通过使用连续投影获取处理可以获取掩模和对比度投影数据的各种方法，而不会在获取掩模投影数据和对比度投影数据之间采集或重置系统中断。 在某些实施方式中，本文描述的方法可以与单平面或多平面断层合成系统一起使用。

公开(公告)号：US20150374319A1

公开(公告)日：2015-12-31

申请号：US14319309

申请日：2014-06-30

Applicant: General Electric Company

Inventor： Bernhard Erich Hermann Claus ,  David Allen Langan ,  Omar Al Assad

IPC: A61B6/00 ,  A61B6/02

CPC classification number: A61B6/4441 ,  A61B6/027 ,  A61B6/032 ,  A61B6/486 ,  A61B6/507

Abstract: C-arm systems and method for making and using continuous C-arm spin acquisition trajectories for dynamic imaging and improved image quality are described. In such systems and methods, a C-arm gantry, coupled to a C-arm support assembly, is adapted to retain an x-ray source and an x-ray detector. The C-arm gantry is selectively rotatable relative to the C-arm support assembly about both a C-arm axis and a pivot-axis to displace the x-ray source and the x-ray detector along a continuous C-arm spin trajectory. The C-arm system is adapted for continuous three-dimensional acquisition of data along the continuous C-arm spin trajectory including a plurality of shorts arcs and a plurality of long arcs. The C-arm system is adapted for continuous three-dimensional acquisition of data along the continuous C-arm spin trajectory to provide continuous three-dimensional imaging of dynamic processes.

Abstract translation: 描述了用于制造和使用连续的C臂旋转获取轨迹的C臂系统和用于动态成像和改进的图像质量的方法。 在这种系统和方法中，耦合到C臂支撑组件的C形臂架适于保持x射线源和x射线检测器。 C形臂架可相对于C形臂支撑组件围绕C形臂和枢转轴线选择性地旋转，以沿着连续的C形臂自旋轨迹移位X射线源和X射线探测器。 C臂系统适于沿着包括多个短弧和多个长弧的连续C臂自旋轨迹的数据的连续三维采集。 C臂系统适用于沿着连续C臂自旋轨迹的连续三维数据采集，以提供动态过程的连续三维成像。

公开(公告)号：US20150029178A1

公开(公告)日：2015-01-29

申请号：US13952444

申请日：2013-07-26

Applicant: General Electric Company

Inventor： Bernhard Erich Hermann Claus ,  David Allen Langan ,  Taylor Robert Braun-Jones

IPC: G06T7/00

CPC classification number: G06T11/005 ,  A61B6/032 ,  A61B6/5258 ,  G06T2200/04

Abstract: Approaches are disclosed for removing or reducing metal artifacts in reconstructed images. The approaches include creating a metal mask in the projection domain, interpolating data within the metal mask, and perform a reconstruction using the interpolated data. In certain embodiments the metal structure is separately reconstructed and combined with the reconstructed volume.

Abstract translation: 公开了用于去除或减少重建图像中的金属伪影的方法。 这些方法包括在投影域中创建金属掩模，在金属掩模内插入数据，并使用内插数据执行重建。 在某些实施例中，金属结构被分开重建并与重建的体积组合。