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公开(公告)号：US10383590B2
公开(公告)日：2019-08-20
申请号：US14868146
申请日：2015-09-28
Applicant: General Electric Company
Inventor： Michael Sarju Vaz , Elizabeth Janus Nett , David Joseph Pitterle , David Erik Chevalier , Christine Carol Hammond , Chelsey Lewis
Abstract: Methods and systems are provided for adaptive scan control. In one embodiment, a method comprises: while performing a scan of a scan subject, processing acquired projection data to measure a contrast level; responsive to the contrast level increasing above a first threshold, automatically switching the scan from a first scan protocol to a second scan protocol; responsive to the contrast level decreasing below a second threshold, automatically switching the scan from the second scan protocol to the first scan protocol; and responsive to the contrast level decreasing below a third threshold, automatically ending the scan. In this way, multiple scan protocols, such as angiography and perfusion scan protocols, can be interleaved within a single scan without the use of a separate timing bolus scan.
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公开(公告)号：US20170086772A1
公开(公告)日：2017-03-30
申请号：US14868146
申请日：2015-09-28
Applicant: General Electric Company
Inventor： Michael Sarju Vaz , Elizabeth Janus Nett , David Joseph Pitterle , David Erik Chevalier , Christine Carol Hammond , Chelsey Lewis
CPC classification number: A61B6/504 , A61B6/032 , A61B6/481 , A61B6/486 , A61B6/501 , A61B6/507 , A61B6/5217 , A61B6/54 , A61B6/542
Abstract: Methods and systems are provided for adaptive scan control. In one embodiment, a method comprises: while performing a scan of a scan subject, processing acquired projection data to measure a contrast level; responsive to the contrast level increasing above a first threshold, automatically switching the scan from a first scan protocol to a second scan protocol; responsive to the contrast level decreasing below a second threshold, automatically switching the scan from the second scan protocol to the first scan protocol; and responsive to the contrast level decreasing below a third threshold, automatically ending the scan. In this way, multiple scan protocols, such as angiography and perfusion scan protocols, can be interleaved within a single scan without the use of a separate timing bolus scan.
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3.发明申请SYSTEMS AND METHODS FOR ADJUSTABLE VIEW FREQUENCY COMPUTED TOMOGRAPHY IMAGING 有权用于可调节视频频率计算机图像成像的系统和方法公开(公告)号：US20160038113A1
公开(公告)日：2016-02-11
申请号：US14451616
申请日：2014-08-05
Applicant: General Electric Company
Inventor： Jiahua Fan , Jed Douglas Pack , Guangzhi Cao , David Joseph Pitterle , Grant Morey Stevens
Abstract: An imaging system includes a computed tomography (CT) acquisition unit and a processing unit. The CT acquisition unit includes an X-ray source and a CT detector configured to collect CT imaging data of an object to be imaged. The X-ray source and CT detector are configured to be rotated about the object to be imaged and to collect a series of views of the object as the X-ray source and CT detector rotate about the object to be imaged. The processing unit is operably coupled to the CT acquisition unit and configured to control the CT acquisition unit to vary a view duration for the views of the series. The view duration for a particular view defines an imaging information acquisition period for the particular view, wherein the series of views includes a first group of views having a first view duration and a second group of views having a second view duration that is different than the first view duration.
Abstract translation: 成像系统包括计算机断层摄影（CT）获取单元和处理单元。 CT采集单元包括：X射线源和CT检测器，被配置为收集待成像对象的CT成像数据。 X射线源和CT检测器被配置为围绕待成像对象旋转，并且当X射线源和CT检测器围绕待成像对象旋转时，收集对象的一系列视图。 处理单元可操作地耦合到CT采集单元并且被配置为控制CT采集单元以改变该系列视图的视图持续时间。 特定视图的视图持续时间定义了特定视图的成像信息获取周期，其中，所述一系列视图包括具有第一视图持续时间的第一组视图和具有不同于第二视图持续时间的第二视图持续时间 第一次观看时间。
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4.发明授权Systems and methods for adjustable view frequency computed tomography imaging 有权可调视频计算机断层摄影成像的系统和方法公开(公告)号：US09486173B2
公开(公告)日：2016-11-08
申请号：US14451616
申请日：2014-08-05
Applicant: General Electric Company
Inventor： Jiahua Fan , Jed Douglas Pack , Guangzhi Cao , David Joseph Pitterle , Grant Morey Stevens
Abstract: An imaging system includes a computed tomography (CT) acquisition unit and a processing unit. The CT acquisition unit includes an X-ray source and a CT detector configured to collect CT imaging data of an object to be imaged. The X-ray source and CT detector are configured to be rotated about the object to be imaged and to collect a series of views of the object as the X-ray source and CT detector rotate about the object to be imaged. The processing unit is operably coupled to the CT acquisition unit and configured to control the CT acquisition unit to vary a view duration for the views of the series. The view duration for a particular view defines an imaging information acquisition period for the particular view, wherein the series of views includes a first group of views having a first view duration and a second group of views having a second view duration that is different than the first view duration.
Abstract translation: 成像系统包括计算机断层摄影（CT）获取单元和处理单元。 CT采集单元包括：X射线源和CT检测器，被配置为收集待成像对象的CT成像数据。 X射线源和CT检测器被配置为围绕待成像对象旋转，并且当X射线源和CT检测器围绕待成像对象旋转时，收集对象的一系列视图。 处理单元可操作地耦合到CT采集单元并且被配置为控制CT采集单元以改变该系列视图的视图持续时间。 特定视图的视图持续时间定义了特定视图的成像信息获取周期，其中，所述一系列视图包括具有第一视图持续时间的第一组视图和具有不同于第二视图持续时间的第二视图持续时间 第一次观看时间。
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