公开(公告)号：US20170231587A1

公开(公告)日：2017-08-17

申请号：US15462745

申请日：2017-03-17

Applicant: University of Massachusetts

Inventor： Srinivasan Vedantham ,  Andrew Karellas

IPC: A61B6/00 ,  A61B6/02 ,  A61B6/04

CPC classification number: A61B6/502 ,  A61B6/02 ,  A61B6/025 ,  A61B6/032 ,  A61B6/04 ,  A61B6/0435 ,  A61B6/40 ,  A61B6/4007 ,  A61B6/4208 ,  A61B6/4435 ,  A61B6/4452 ,  A61B6/461 ,  A61B6/481 ,  A61B6/485 ,  A61B6/5211 ,  A61B6/54

Abstract: The invention provides x-ray-based breast imaging systems and related methods that are, for example, applicable to contrast enhanced digital mammography and contrast enhanced digital breast tomosynthesis and allow fast, cost-effective and accurate x-ray imaging.

公开(公告)号：US20170219503A1

公开(公告)日：2017-08-03

申请号：US15385518

申请日：2016-12-20

Applicant: University of Massachusetts

Inventor： Srinivasan Vedantham ,  Andrew Karellas

IPC: G01N23/20 ,  A61B6/00 ,  G21K1/06 ,  G01N23/04

CPC classification number: G01N23/20075 ,  A61B6/4035 ,  A61B6/4291 ,  A61B6/4452 ,  A61B6/484 ,  G01N23/04 ,  G01N2223/313 ,  G01N2223/6126 ,  G21K1/067 ,  G21K2201/067 ,  H05G1/30

Abstract: An x-ray phase contrast imaging apparatus and method of operating the same. The apparatus passes x-rays generated by an x-ray source through, in succession, a source grating, an object of interest, a phase grating, and an analyzer grating. The x-ray source, the source grating, the phase grating, and the analyzer grating move as a single entity relative to an object of interest. The phase grating and the analyzer grating remain in fixed relative location and fixed relative orientation with respect to one another. The detected x-rays are converted to a time sequence of electrical signals. In some cases, the apparatus is controlled, and the electrical signals are analyzed by, by a general purpose programmable computer provided with instructions recorded on a machine readable medium. One or more x-ray phase contrast images of the object of interest are generated, and can be recorded or displayed.

公开(公告)号：US09770222B2

公开(公告)日：2017-09-26

申请号：US15462745

申请日：2017-03-17

Applicant: University of Massachusetts

Inventor： Srinivasan Vedantham ,  Andrew Karellas

IPC: A61B6/02 ,  A61B6/00 ,  A61B6/04

CPC classification number: A61B6/502 ,  A61B6/02 ,  A61B6/025 ,  A61B6/032 ,  A61B6/04 ,  A61B6/0435 ,  A61B6/40 ,  A61B6/4007 ,  A61B6/4208 ,  A61B6/4435 ,  A61B6/4452 ,  A61B6/461 ,  A61B6/481 ,  A61B6/485 ,  A61B6/5211 ,  A61B6/54

Abstract: The invention provides x-ray-based breast imaging systems and related methods that are, for example, applicable to contrast enhanced digital mammography and contrast enhanced digital breast tomosynthesis and allow fast, cost-effective and accurate x-ray imaging.

公开(公告)号：US20150055743A1

公开(公告)日：2015-02-26

申请号：US14379041

申请日：2013-02-15

Applicant: University of Massachusetts Medical School

Inventor： Srinivasan Vedantham ,  Andrew Karellas

IPC: G01N23/20 ,  H05G1/30 ,  G21K1/06

CPC classification number: G01N23/20075 ,  A61B6/4035 ,  A61B6/4291 ,  A61B6/4452 ,  A61B6/484 ,  G01N23/04 ,  G01N2223/313 ,  G01N2223/6126 ,  G21K1/067 ,  G21K2201/067 ,  H05G1/30

Abstract: An x-ray phase contrast imaging apparatus and method of operating the same. The apparatus passes x-rays generated by an x-ray source through, in succession, a source grating, an object of interest, a phase grating, and an analyzer grating. The x-ray source, the source grating, the phase grating, and the analyzer grating move as a single entity relative to an object of interest. The phase grating and the analyzer grating remain in fixed relative location and fixed relative orientation with respect to one another. The detected x-rays are converted to a time sequence of electrical signals. In some cases, the apparatus is controlled, and the electrical signals are analyzed by, by a general purpose programmable computer provided with instructions recorded on a machine readable medium. One or more x-ray phase contrast images of the object of interest are generated, and can be recorded or displayed.

Abstract translation: 一种X射线相位成像装置及其操作方法。 该装置将由X射线源产生的X射线依次传递给源光栅，感兴趣对象，相位光栅和分析器光栅。 X射线源，源光栅，相位光栅和分析器光栅相对于感兴趣对象移动为单个实体。 相位光栅和分析器光栅相对于彼此保持固定的相对位置和固定的相对取向。 检测到的x射线被转换成电信号的时间序列。 在一些情况下，通过设置有记录在机器可读介质上的指令的通用可编程计算机来控制装置，并且电信号被分析。 生成感兴趣对象的一个​​或多个X射线相位对比图像，并且可以被记录或显示。

公开(公告)号：US09629597B2

公开(公告)日：2017-04-25

申请号：US14772227

申请日：2014-03-06

Applicant: University of Massachusetts Medical School

Inventor： Srinivasan Vedantham ,  Andrew Karellas

IPC: A61B6/00 ,  A61B6/04 ,  A61B6/02 ,  A61B6/03

CPC classification number: A61B6/502 ,  A61B6/02 ,  A61B6/025 ,  A61B6/032 ,  A61B6/04 ,  A61B6/0435 ,  A61B6/40 ,  A61B6/4007 ,  A61B6/4208 ,  A61B6/4435 ,  A61B6/4452 ,  A61B6/461 ,  A61B6/481 ,  A61B6/485 ,  A61B6/5211 ,  A61B6/54

Abstract: The invention provides x-ray-based breast imaging systems and related methods that are, for example, applicable to contrast enhanced digital mammography and contrast enhanced digital breast tomosynthesis and allow fast, cost-effective and accurate x-ray imaging.