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公开(公告)号：US20190122401A1
公开(公告)日：2019-04-25
申请号：US16222586
申请日：2018-12-17
发明人： Robert F. Senzig , Ravikanth Avancha , Bijan Dorri , Sandeep Dutta , Steven J. Gray , Jiang Hsieh , John Irvin Jackson , Giridhar Jothiprasad , Paul Edgar Licato , Darin Robert Okerlund , Toshihiro Rifu , Saad Ahmed Sirohey , Basel Taha , Peter Michael Edic , Jerome Knoplioch , Rahul Bhotika
摘要： A system and method for estimating vascular flow using CT imaging include a computer readable storage medium having stored thereon a computer program comprising instructions, which, when executed by a computer, cause the computer to acquire a first set of data comprising anatomical information of an imaging subject, the anatomical information comprises information of at least one vessel. The instructions further cause the computer to process the anatomical information to generate an image volume comprising the at least one vessel, generate hemodynamic information based on the image volume, and acquire a second set of data of the imaging subject. The computer is also caused to generate an image comprising the hemodynamic information in combination with a visualization based on the second set of data.
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12.发明申请SYSTEMS AND METHODS FOR FLOW RATE COMPENSATED ACQUISITION PARAMETERS FOR MEDICAL IMAGING 审中-公开用于医疗成像的流量补偿收购参数的系统和方法公开(公告)号：US20170000440A1
公开(公告)日：2017-01-05
申请号：US14788033
申请日：2015-06-30
发明人： Darin Robert Okerlund , Mark Vincent Profio , Christine Carol Hammond , John Irvin Jackson , Judy Marie Graney , Chelsey Amanda Lewis
CPC分类号： A61B6/5217 , A61B6/032 , A61B6/481 , A61M5/007
摘要： Systems and methods are provided that acquire image data of a first location of a region of interest (ROI) when located in a field of view of a medical imaging system as a contrast material injected into the ROI passes through the first location. The systems and methods further determine from the image data of the first location when a first contrast metric is reached, and after determining the image data of the first location, position the second location of the ROI in the field of view of the medical imaging system. The systems and methods further acquire image data of the second location as the contrast material passes through the second location, and determine from the image data of the second location when the contrast material reaches a second contrast metric.
摘要翻译： 提供了当位于医疗成像系统的视野中时，获取感兴趣区域（ROI）的第一位置的图像数据作为注入到ROI中的对比材料通过第一位置的系统和方法。 当达到第一对比度量时，系统和方法进一步从第一位置的图像数据确定，并且在确定第一位置的图像数据之后，将ROI的第二位置定位在医学成像系统的视野 。 当对比材料通过第二位置时，系统和方法进一步获取第二位置的图像数据，并且当造影剂材料达到第二对比度量时，从第二位置的图像数据确定。
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公开(公告)号：US09420976B2
公开(公告)日：2016-08-23
申请号：US14219245
申请日：2014-03-19
发明人： John Irvin Jackson , Holly Ann McDaniel , Grant Morey Stevens , Bradley Jay Gabrielse , Dominic Joseph Crotty
摘要： An imaging system is provided including an adjustable source collimator, an input unit, and a processing unit. The adjustable source collimator is configured to be interposed between an X-ray source and an object to be imaged, and is adjustable between plural settings corresponding to different amounts of collimation of rays from the X-ray source. The input unit is configured to obtain an input identifying a portion to be imaged of the object. The processing unit is operably coupled to the input unit and the adjustable source collimator, and configured to obtain the input. The processing unit is also configured to determine a prescribed collimation configuration to perform a scan of the portion to be imaged based on the input, the prescribed collimation configuration having a corresponding scanning volume that includes the portion to be imaged.
摘要翻译： 提供了一种成像系统，包括可调节光源准直仪，输入单元和处理单元。 可调光源准直仪被配置为插入在X射线源和待成像对象之间，并且可以在对应于来自X射线源的射线的不同准直量的多个设置之间进行调节。 输入单元被配置为获得识别对象的要被成像的部分的输入。 处理单元可操作地耦合到输入单元和可调节的源准直器，并且被配置为获得输入。 处理单元还被配置为确定规定的准直配置以基于输入执行要成像的部分的扫描，所述规定的准直配置具有包括要成像的部分的对应的扫描体积。
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公开(公告)号：US11559272B2
公开(公告)日：2023-01-24
申请号：US15441962
申请日：2017-02-24
IPC分类号： A61B6/00 , A61B5/0245 , A61B6/03 , A61B5/00 , A61B5/349
摘要： Methods and systems are provided for cardiac computed tomography imaging. In one embodiment, a method comprises reconstructing an image from projection data acquired during a scan with a reconstruction time determined based on a model relating a timing of an event to be imaged to a heart rate measured during the scan. In this way, the timing of a reconstruction may be consistently applied for a series of reconstructions, thereby inherently registering the reconstructions.
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公开(公告)号：US11497459B2
公开(公告)日：2022-11-15
申请号：US15881402
申请日：2018-01-26
发明人： John Irvin Jackson , Dominic Joseph Crotty , Franco Rupcich , John Londt , Mark Vincent Profio , Darin Robert Okerlund
摘要： Methods and systems are provided for adjusting medical imaging parameters based on imaging parameters used during a previous imaging session. In one embodiment, a method for a computed tomography (CT) system includes reducing a radiation level of at least one CT scan of one or more successive CT scans performed on a patient based on CT scan information obtained from a previous CT scan performed on the patient, the radiation level reduced relative to a radiation level of the previous CT scan.
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公开(公告)号：US20220237794A1
公开(公告)日：2022-07-28
申请号：US17722808
申请日：2022-04-18
发明人： John Irvin Jackson , Amy Deubig , John Londt , Christine Carol Hammond , Scott McOlash , Vignesha Ramegowda
摘要： An imaging system and method acquires non-contrast images of a region of interest in a body and determines an entrance criterion based on the non-contrast images. The entrance criterion dictates conditions in which to begin acquiring contrast imaging exposures of the region of interest. An amount of a contrast agent is measured in one or more locations in the imaged body subsequent to acquiring the non-contrast images. The system and method determine that the one or more conditions of the entrance criterion are met based on the amount of the contrast agent that is measured in the imaged body, and acquire one or more contrast images of the region of interest in the imaged body responsive to determining that the one or more conditions of the entrance criterion are met.
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17.发明授权公开(公告)号：US10349909B2
公开(公告)日：2019-07-16
申请号：US14788033
申请日：2015-06-30
发明人： Darin Robert Okerlund , Mark Vincent Profio , Christine Carol Hammond , John Irvin Jackson , Judy Marie Graney , Chelsey Amanda Lewis
摘要： Systems and methods are provided that acquire image data of a first location of a region of interest (ROI) when located in a field of view of a medical imaging system as a contrast material injected into the ROI passes through the first location. The systems and methods further determine from the image data of the first location when a first contrast metric is reached, and after determining the image data of the first location, position the second location of the ROI in the field of view of the medical imaging system. The systems and methods further acquire image data of the second location as the contrast material passes through the second location, and determine from the image data of the second location when the contrast material reaches a second contrast metric.
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公开(公告)号：US20180242942A1
公开(公告)日：2018-08-30
申请号：US15441962
申请日：2017-02-24
IPC分类号： A61B6/00 , A61B5/0456 , A61B5/0245 , A61B6/03 , A61B5/04
CPC分类号： A61B6/5205 , A61B5/0452 , A61B5/7292 , A61B6/032 , A61B6/481 , A61B6/486 , A61B6/503 , A61B6/507 , A61B6/5211 , A61B6/5288
摘要： Methods and systems are provided for cardiac computed tomography imaging. In one embodiment, a method comprises reconstructing an image from projection data acquired during a scan with a reconstruction time determined based on a model relating a timing of an event to be imaged to a heart rate measured during the scan. In this way, the timing of a reconstruction may be consistently applied for a series of reconstructions, thereby inherently registering the reconstructions.
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公开(公告)号：US20150265226A1
公开(公告)日：2015-09-24
申请号：US14219245
申请日：2014-03-19
发明人： John Irvin Jackson , Holly Ann McDaniel , Grant Morey Stevens , Bradley Jay Gabrielse , Dominic Joseph Crotty
摘要： An imaging system is provided including an adjustable source collimator, an input unit, and a processing unit. The adjustable source collimator is configured to be interposed between an X-ray source and an object to be imaged, and is adjustable between plural settings corresponding to different amounts of collimation of rays from the X-ray source. The input unit is configured to obtain an input identifying a portion to be imaged of the object. The processing unit is operably coupled to the input unit and the adjustable source collimator, and configured to obtain the input. The processing unit is also configured to determine a prescribed collimation configuration to perform a scan of the portion to be imaged based on the input, the prescribed collimation configuration having a corresponding scanning volume that includes the portion to be imaged.
摘要翻译： 提供了一种成像系统，包括可调节光源准直仪，输入单元和处理单元。 可调光源准直仪被配置为插入在X射线源和待成像对象之间，并且可以在对应于来自X射线源的射线的不同准直量的多个设置之间进行调节。 输入单元被配置为获得识别对象的要被成像的部分的输入。 处理单元可操作地耦合到输入单元和可调节的源准直器，并且被配置为获得输入。 处理单元还被配置为确定规定的准直配置以基于输入执行要成像的部分的扫描，所述规定的准直配置具有包括要成像的部分的对应的扫描体积。
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