公开(公告)号：US09888894B2

公开(公告)日：2018-02-13

申请号：US14977086

申请日：2015-12-21

Applicant: General Electric Company

Inventor： Uwe Wiedmann ,  Peter Michael Edic ,  Bruno Kristiaan Bernard De Man ,  Naveen Stephan Chandra ,  Jed Douglas Pack ,  Yannan Jin ,  Denis Perrillat-Amede ,  Jean-Francois Larroux

IPC: A61B6/00 ,  A61B6/03

CPC classification number: A61B6/482 ,  A61B6/032 ,  A61B6/405 ,  A61B6/5205 ,  A61B6/5258

Abstract: Acquisition of X-ray transmission data at three or more energy levels is described. Various implementations utilize generator waveforms that utilize fast-switching, slow-switching, or a combination of fast- and slow-switching to transition between X-ray energy levels. In addition, various sampling arrangements for sampling and/or binning three or more energy levels of X-ray transmission data are discussed. The use of these data in subsequent processing steps, such for material decomposition and/or improvement of dual-energy material decomposition processing, are also described.

公开(公告)号：US20170325769A1

公开(公告)日：2017-11-16

申请号：US15154360

申请日：2016-05-13

Applicant: General Electric Company

Inventor： Prem Venugopal ,  Jed Douglas Pack ,  Bruno Kristiaan Bernard De Man ,  Peter Michael Edic ,  Jiang Hsieh

IPC: A61B6/00 ,  A61B6/03

Abstract: The present approach provides a non-invasive methodology for estimation of coronary flow and/or fractional flow reserve. In certain implementations, various approaches for personalizing blood flow models of the coronary vasculature are described. The described personalization approaches involve patient-specific measurements and do not assume or rely on the resting coronary flow being proportional to myocardial mass. Consequently, there are fewer limitations in using these approaches to obtain coronary flow and/or fractional flow reserve estimates non-invasively.

公开(公告)号：US20170172528A1

公开(公告)日：2017-06-22

申请号：US14977086

申请日：2015-12-21

Applicant: General Electric Company

Inventor： Uwe Wiedmann ,  Peter Michael Edic ,  Bruno Kristiaan Bernard De Man ,  Naveen Stephan Chandra ,  Jed Douglas Pack ,  Yannan Jin ,  Denis Perrillat-Amede ,  Jean- Francois Larroux

IPC: A61B6/00 ,  A61B6/03

CPC classification number: A61B6/482 ,  A61B6/032 ,  A61B6/405 ,  A61B6/5205 ,  A61B6/5258

Abstract: Acquisition of X-ray transmission data at three or more energy levels is described. Various implementations utilize generator waveforms that utilize fast-switching, slow-switching, or a combination of fast- and slow-switching to transition between X-ray energy levels. In addition, various sampling arrangements for sampling and/or binning three or more energy levels of X-ray transmission data are discussed. The use of these data in subsequent processing steps, such for material decomposition and/or improvement of dual-energy material decomposition processing, are also described.

公开(公告)号：US20140133622A1

公开(公告)日：2014-05-15

申请号：US13675875

申请日：2012-11-13

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Zhye Yin ,  Bruno Kristiaan Bernard De Man ,  Jed Douglas Pack ,  Kyle Morgan Champley ,  Kai Zeng

IPC: A61B6/03

CPC classification number: A61B6/503 ,  A61B6/032 ,  A61B6/5205 ,  A61B6/541 ,  G06F19/00

Abstract: An approach is disclosed for acquiring multi-sector computed tomography scan data. The approach includes activating an X-ray source during heartbeats of a patient to acquire projection data over a limited angular range for each heartbeat. The projection data acquired over the different is combined. An image having good temporal resolution is reconstructed using the combined projection data.

Abstract translation: 公开了一种用于获取多扇区计算机断层摄影扫描数据的方法。 该方法包括在患者的心跳期间激活X射线源以在每个心跳的有限角度范围内获取投影数据。 将不同的投影数据合并。 使用组合的投影数据重建具有良好时间分辨率的图像。