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1. 发明授权

US10368825B2 Methods and systems for computed tomography 有权
公开(公告)号：US10368825B2
公开(公告)日：2019-08-06
申请号：US15002122
申请日：2016-01-20
申请人： General Electric Company
发明人： Dominic Joseph Crotty , Roy A. Nilsen , Jiahua Fan , Mary Sue Kulpins , Franco Rupcich , Grant Morey Stevens
IPC分类号： A61B6/00 , A61B6/03
摘要： Methods and systems are provided for automatic exposure control in computed tomography imaging systems. In one embodiment, a method comprises in response to an object-specific dose metric input by a user via a user interface operably coupled to a scanner, predicting an image quality of a diagnostic scan, calculating an output level of a source of the scanner for the image quality, and performing the diagnostic scan at the output level when the image quality is higher than a threshold. In this way, patient-specific image quality settings may be determined.

2. 发明授权

US09968307B2 Systems and methods for selecting parameters using contrast and noise 有权
公开(公告)号：US09968307B2
公开(公告)日：2018-05-15
申请号：US13726371
申请日：2012-12-24
申请人： General Electric Company
发明人： Grant Morey Stevens , Roy A. Nilsen
IPC分类号： A61B6/00 , A61B6/03
CPC分类号： A61B6/032 , A61B6/5258 , A61B6/54 , A61B6/542
摘要： An imaging system includes an identification module, an analysis module, and a determination module. The identification module is configured to identify a scanning mode of operation. The analysis module is configured to determine an attenuation for an object for a scan to be performed on the object. The determination module is configured to determine an image contrast for each of plural setting combinations, determine a corresponding tolerable noise for the image contrast for each of the setting combinations based on the scanning mode of operation, and determine a corresponding diagnostic dosage for each setting combination, the diagnostic dosages corresponding to the image contrast and tolerable noise for the corresponding setting combination. The determination module is also configured to select an operational setting for the scan to be performed using the dosages determined.

3. 发明授权

US09517042B2 Systems and methods for imaging phase selection for computed tomography imaging 有权
标题翻译：用于计算机断层摄影成像相位选择的系统和方法
公开(公告)号：US09517042B2
公开(公告)日：2016-12-13
申请号：US14484544
申请日：2014-09-12
申请人： General Electric Company
发明人： Jiang Hsieh , Saad Ahmed Sirohey , Roy A. Nilsen , Suresh Narayanan Narayanan , Guangzhi Cao
IPC分类号： A61B6/03 , A61B6/00 , A61B6/06 , G06K9/46 , G06K9/62 , G06T7/00 , G06T7/20 , A61B6/02
CPC分类号： A61B6/504 , A61B6/025 , A61B6/032 , A61B6/06 , A61B6/481 , A61B6/486 , A61B6/488 , A61B6/507 , A61B6/5205 , A61B6/5217 , A61B6/5252 , A61B6/541 , A61B6/542 , A61B6/545 , G06K9/4661 , G06K9/6215 , G06T7/0014 , G06T7/20 , G06T2207/30048
摘要： 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 processing unit includes at least one processor operably coupled to the CT acquisition unit. The processing unit is configured to control the CT acquisition unit to collect at least one sample projection during rotation of the CT acquisition unit about the object to be imaged, compare an intensity of the at least one sample projection to an intensity of a reference projection, select a time to perform an imaging scan based on the comparison of the intensity of the at least one sample projection to the intensity of the reference projection, and control the CT acquisition unit to perform the imaging scan.
摘要翻译：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。处理单元包括可操作地耦合到CT采集单元的至少一个处理器。所述处理单元被配置为控制所述CT采集单元，以在所述CT采集单元围绕待成像对象旋转期间收集至少一个样本投影，将所述至少一个样本投影的强度与参考投影的强度进行比较，基于所述至少一个样本投影的强度与所述参考投影的强度的比较来选择执行成像扫描的时间，以及控制所述CT采集单元执行所述成像扫描。

4. 发明申请

US20150164457A1 SYSTEM AND METHOD OF X-RAY DOSE DISTRIBUTION FOR COMPUTED TOMOGRAPHY BASED ON SIMULATION 有权
标题翻译：基于模拟计算机图像的X射线剂量分布系统与方法
公开(公告)号：US20150164457A1
公开(公告)日：2015-06-18
申请号：US14132524
申请日：2013-12-18
申请人： General Electric Company
发明人： Brian E. Nett , Roy A. Nilsen , Grant M. Stevens
IPC分类号： A61B6/00
CPC分类号： A61B6/542 , A61B6/032 , A61B6/482 , A61B6/545 , G06F17/5009 , G06F19/00
摘要： An imaging system allows for modification of data acquisition parameters, where the parameters affect dose distribution. The system includes a library of exams, and a computer programmed to obtain a set of scanning parameters for image data acquisition and image reconstruction, obtain scan data from the library of exams that is based on a similarity metric for a patient to be scanned, simulate a new scan of the patient using the obtained scan data and using the obtained set of scanning parameters, and generate a new set of scanning parameters based on the simulation.
摘要翻译：成像系统允许修改数据采集参数，其中参数影响剂量分布。该系统包括考试库和被编程为获得用于图像数据采集和图像重建的一组扫描参数的计算机，从基于待扫描的患者的相似性度量的考试库获得扫描数据，模拟使用获得的扫描数据对患者进行新的扫描，并使用获得的扫描参数组，并且基于该仿真生成新的一组扫描参数。

5. 发明申请

US20140177788A1 SYSTEMS AND METHODS FOR SELECTING PARAMETERS USING CONTRAST AND NOISE 有权
标题翻译：使用对比和噪声选择参数的系统和方法
公开(公告)号：US20140177788A1
公开(公告)日：2014-06-26
申请号：US13726371
申请日：2012-12-24
申请人： GENERAL ELECTRIC COMPANY
发明人： Grant Morey Stevens , Roy A. Nilsen
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/5258 , A61B6/54 , A61B6/542
摘要： An imaging system includes an identification module, an analysis module, and a determination module. The identification module is configured to identify a scanning mode of operation. The analysis module is configured to determine an attenuation for an object for a scan to be performed on the object. The determination module is configured to determine an image contrast for each of plural setting combinations, determine a corresponding tolerable noise for the image contrast for each of the setting combinations based on the scanning mode of operation, and determine a corresponding diagnostic dosage for each setting combination, the diagnostic dosages corresponding to the image contrast and tolerable noise for the corresponding setting combination. The determination module is also configured to select an operational setting for the scan to be performed using the dosages determined.
摘要翻译：成像系统包括识别模块，分析模块和确定模块。识别模块被配置为识别扫描操作模式。分析模块被配置为确定要对对象执行的扫描的对象的衰减。确定模块被配置为确定多个设置组合中的每一个的图像对比度，基于扫描操作模式确定针对每个设置组合的图像对比度的相应的可容忍噪声，并且确定每个设置组合的相应诊断剂量，对应于相应设置组合的图像对比度和可容忍噪声的诊断剂量。确定模块还被配置为使用所确定的剂量来选择要执行的扫描的操作设置。

6. 发明授权

US09795356B2 System and method of X-ray dose distribution for computed tomography based on simulation 有权
公开(公告)号：US09795356B2
公开(公告)日：2017-10-24
申请号：US14132524
申请日：2013-12-18
申请人： General Electric Company
发明人： Brian E. Nett , Roy A. Nilsen , Grant M. Stevens
IPC分类号： G06F17/50 , A61B6/00 , A61B6/03
CPC分类号： A61B6/542 , A61B6/032 , A61B6/482 , A61B6/545 , G06F17/5009 , G06F19/00
摘要： An imaging system allows for modification of data acquisition parameters, where the parameters affect dose distribution. The system includes a library of exams, and a computer programmed to obtain a set of scanning parameters for image data acquisition and image reconstruction, obtain scan data from the library of exams that is based on a similarity metric for a patient to be scanned, simulate a new scan of the patient using the obtained scan data and using the obtained set of scanning parameters, and generate a new set of scanning parameters based on the simulation.

7. 发明申请

US20170202534A1 METHODS AND SYSTEMS FOR COMPUTED TOMOGRAPHY 审中-公开
公开(公告)号：US20170202534A1
公开(公告)日：2017-07-20
申请号：US15002122
申请日：2016-01-20
申请人： General Electric Company
发明人： Dominic Joseph Crotty , Roy A. Nilsen , Jiahua Fan , Mary Sue Kulpins , Franco Rupcich , Grant Morey Stevens
IPC分类号： A61B6/00 , A61B6/03
CPC分类号： A61B6/544 , A61B6/032 , A61B6/465 , A61B6/467 , A61B6/488 , A61B6/5205 , A61B6/542
摘要： Methods and systems are provided for automatic exposure control in computed tomography imaging systems. In one embodiment, a method comprises in response to an object-specific dose metric input by a user via a user interface operably coupled to a scanner, predicting an image quality of a diagnostic scan, calculating an output level of a source of the scanner for the image quality, and performing the diagnostic scan at the output level when the image quality is higher than a threshold. In this way, patient-specific image quality settings may be determined.

8. 发明申请

US20160078619A1 SYSTEMS AND METHODS FOR IMAGING PHASE SELECTION FOR COMPUTED TOMOGRAPHY IMAGING 有权
标题翻译：用于成像计算机图像成像相位选择的系统和方法
公开(公告)号：US20160078619A1
公开(公告)日：2016-03-17
申请号：US14484544
申请日：2014-09-12
申请人： General Electric Company
发明人： Jiang Hsieh , Saad Ahmed Sirohey , Roy A. Nilsen , Suresh Narayanan Narayanan , Guangzhi Cao
IPC分类号： G06T7/00 , A61B6/00 , G06T7/20 , G06K9/62 , G06K9/46 , A61B6/03 , A61B6/06
CPC分类号： A61B6/504 , A61B6/025 , A61B6/032 , A61B6/06 , A61B6/481 , A61B6/486 , A61B6/488 , A61B6/507 , A61B6/5205 , A61B6/5217 , A61B6/5252 , A61B6/541 , A61B6/542 , A61B6/545 , G06K9/4661 , G06K9/6215 , G06T7/0014 , G06T7/20 , G06T2207/30048
摘要： 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 processing unit includes at least one processor operably coupled to the CT acquisition unit. The processing unit is configured to control the CT acquisition unit to collect at least one sample projection during rotation of the CT acquisition unit about the object to be imaged, compare an intensity of the at least one sample projection to an intensity of a reference projection, select a time to perform an imaging scan based on the comparison of the intensity of the at least one sample projection to the intensity of the reference projection, and control the CT acquisition unit to perform the imaging scan.
摘要翻译：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。处理单元包括可操作地耦合到CT采集单元的至少一个处理器。所述处理单元被配置为控制所述CT采集单元，以在所述CT采集单元围绕待成像对象旋转期间收集至少一个样本投影，将所述至少一个样本投影的强度与参考投影的强度进行比较，基于所述至少一个样本投影的强度与所述参考投影的强度的比较来选择执行成像扫描的时间，以及控制所述CT采集单元执行所述成像扫描。

9. 发明授权

US09008274B2 Systems and methods for selecting image display parameters 有权
标题翻译：用于选择图像显示参数的系统和方法
公开(公告)号：US09008274B2
公开(公告)日：2015-04-14
申请号：US13726398
申请日：2012-12-24
申请人： General Electric Company
发明人： Grant Morey Stevens , Roy A. Nilsen , Brian William Thomsen
IPC分类号： A61B6/00 , G06T11/00 , G06F19/00 , A61B6/03
CPC分类号： A61B6/52 , A61B6/032 , A61B6/461 , A61B6/5294 , G06T5/009 , G06T5/50 , G06T2207/10081
摘要： An imaging system includes an identification module, a determination module, and a display module. The identification module is configured to identify one or more first scanning parameters and one or more first display parameters corresponding to a first image, and to identify one or more second scanning parameters corresponding to scanning information acquired during a second scan. The determination module is configured to determine, based on the one or more first scanning parameters and the one or more second scanning parameters, one or more second display parameters so that the scanning information acquired during the second scan may be used to provide a second image appearing more similar to the first image. The display module is configured to use the one or more second display parameters to provide the second image configured to be displayed to a viewer.
摘要翻译：成像系统包括识别模块，确定模块和显示模块。识别模块被配置为识别与第一图像相对应的一个或多个第一扫描参数和一个或多个第一显示参数，并且识别对应于在第二扫描期间获取的扫描信息的一个或多个第二扫描参数。确定模块被配置为基于一个或多个第一扫描参数和一个或多个第二扫描参数来确定一个或多个第二显示参数，使得可以使用在第二扫描期间获取的扫描信息来提供第二图像看起来更像第一张图像。显示模块被配置为使用一个或多个第二显示参数来提供被配置为被显示给观看者的第二图像。

10. 发明授权

US10667767B2 Systems and methods for selecting bowtie filter configuration 审中-公开
公开(公告)号：US10667767B2
公开(公告)日：2020-06-02
申请号：US14268404
申请日：2014-05-02
申请人： General Electric Company
发明人： Grant Morey Stevens , Dominic Joseph Crotty , Roy A. Nilsen
IPC分类号： A61B6/03 , A61B6/00 , A61B6/04 , G21K1/10
摘要： An imaging system is provided including a selectable pre-object filter module, a detector, and a processing unit. The selectable pre-object filter module is configured to absorb radiation from the X-ray source to control distribution of X-rays passed to an object to be imaged. The selectable pre-object filter module has plural pre-object filter configurations providing corresponding X-ray distributions, and is selectable between the plural configurations to provide a selected pre-object filter configuration for a scan of the object. The detector is configured to receive X-rays that have passed through the object. The processing unit is operably coupled to the selectable pre-object filter module and the detector, and is configured to identify an anatomy to be imaged, determine a corresponding image quality and radiation dose for each of the plural pre-object filter configurations; and select the selected pre-object filter configuration based upon the determined corresponding image qualities and radiation doses.

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