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1. 发明授权

US08891849B2 Extended low contrast detectability for radiographic imaging systems 有权
标题翻译：扩大的射线照相成像系统的低对比度检测能力
公开(公告)号：US08891849B2
公开(公告)日：2014-11-18
申请号：US13503721
申请日：2010-07-16
申请人： David P. Rohler , Arjun K. Maniyedath , Thomas L. Toth , Thomas E. Dechant , Steven H. Izen
发明人： David P. Rohler , Arjun K. Maniyedath , Thomas L. Toth , Thomas E. Dechant , Steven H. Izen
IPC分类号： G06K9/00 , A61B6/00 , A61B6/03
CPC分类号： A61B6/482 , A61B6/032 , A61B6/405 , A61B6/5252 , A61B6/542 , A61B6/545 , A61B6/583 , A61B6/587
摘要： Systems and methods for determining an extended low contrast detectability performance function for an operating range for a core operating mode of a radiographic imaging system using actual reconstructed images characterize the contrast performance of a radiographic imaging system over its operating range and for any patient size based on the off-line calibration, uses ordered pairs of flux index and contrast index for each scanned object to provide a contrast index for each protocol for each contrast set, and uses the ordered pairs of flux index and contrast index to determine an extended low contrast detectability performance function for the operating range of a radiographic imaging system. Extended low contrast detectability performance data compilation and methods of clinical use, and low contrast phantom configurations and methods of calibration are also disclosed.
摘要翻译：用于确定用于使用实际重建图像的射线照相成像系统的核心操作模式的操作范围的扩展的低对比度可检测性性能功能的系统和方法表征放射线照相成像系统在其工作范围内的对比度性能以及基于离线校准使用每个扫描对象的通量指数和对比度指数的有序对，为每个对比度集合的每个协议提供对比度指数，并使用有序的通量指数和对比度指数对来确定扩展的低对比度检测能力射线成像系统的工作范围的性能功能。还公开了扩展的低对比度可检测性能数据汇编和临床使用方法，以及低对比度幻影配置和校准方法。

2. 发明申请

US20120230576A1 EXTENDED LOW CONTRAST DETECTABILITY FOR RADIOGRAPHIC IMAGING SYSTEMS 有权
标题翻译：用于放射成像系统的扩展的低对比度检测能力
公开(公告)号：US20120230576A1
公开(公告)日：2012-09-13
申请号：US13503721
申请日：2010-07-16
申请人： David P. Rohler , Arjun K. Maniyedath , Thomas L. Toth , Thomas E. Dechant , Steven H. Izen
发明人： David P. Rohler , Arjun K. Maniyedath , Thomas L. Toth , Thomas E. Dechant , Steven H. Izen
IPC分类号： G06K9/00
CPC分类号： A61B6/482 , A61B6/032 , A61B6/405 , A61B6/5252 , A61B6/542 , A61B6/545 , A61B6/583 , A61B6/587
摘要： Systems and methods for determining an extended low contrast detectability performance function for an operating range for a core operating mode of a radiographic imaging system using actual reconstructed images characterize the contrast performance of a radiographic imaging system over its operating range and for any patient size based on the off-line calibration, uses ordered pairs of flux index and contrast index for each scanned object to provide a contrast index for each protocol for each contrast set, and uses the ordered pairs of flux index and contrast index to determine an extended low contrast detectability performance function for the operating range of a radiographic imaging system. Extended low contrast detectability performance data compilation and methods of clinical use, and low contrast phantom configurations and methods of calibration are also disclosed.
摘要翻译：用于确定用于使用实际重建图像的射线照相成像系统的核心操作模式的操作范围的扩展的低对比度可检测性性能功能的系统和方法表征放射线照相成像系统在其工作范围内的对比度性能以及基于离线校准使用每个扫描对象的通量指数和对比度指数的有序对，为每个对比度集合的每个协议提供对比度指数，并使用有序的通量指数和对比度指数对来确定扩展的低对比度检测能力射线成像系统的工作范围的性能功能。还公开了扩展的低对比度可检测性能数据汇编和临床使用方法，以及低对比度幻影配置和校准方法。

3. 发明授权

US09681851B2 Methods and apparatus for extended low contrast detectability for radiographic imaging systems 有权
公开(公告)号：US09681851B2
公开(公告)日：2017-06-20
申请号：US14542698
申请日：2014-11-17
申请人： David P. Rohler , Thomas L. Toth , Steven H. Izen , Arjun K. Maniyedath
发明人： David P. Rohler , Thomas L. Toth , Steven H. Izen , Arjun K. Maniyedath
IPC分类号： A61B6/03 , A61B6/00
CPC分类号： A61B6/583 , A61B6/032 , A61B6/482 , A61B6/488 , A61B6/542 , A61B6/544 , A61B6/545 , A61B6/584 , A61B6/586
摘要： Evaluating dose performance of a radiographic imaging system with respect to image quality using a phantom, a channelized hotelling observer module as a model observer, and a printer, a plaque, or an electronic display includes scanning and producing images for a plurality of sections of the phantom using the radiographic imaging system, wherein the plurality of sections represent a range of patient sizes and doses and wherein the sections of the phantom contain objects of measurable detectability. Also included is analyzing the images to determine detectability results for one or more of the contained objects within the images of the plurality of sections of the phantom, wherein the analyzing includes using a channelized hotelling observer (CHO) module as a model observer; and displaying, via the printer, the plaque, or the electronic display, a continuous detectability performance measurement function using the determined detectability results.

4. 发明授权

US10555716B2 Methods and apparatus for extended low contrast detectability for radiographic imaging systems 有权
公开(公告)号：US10555716B2
公开(公告)日：2020-02-11
申请号：US15597787
申请日：2017-05-17
申请人： David P. Rohler , Thomas L. Toth , Steven H. Izen , Arjun K. Maniyedath
发明人： David P. Rohler , Thomas L. Toth , Steven H. Izen , Arjun K. Maniyedath
IPC分类号： A61B6/03 , A61B6/00
摘要： Evaluating dose performance of a radiographic imaging system with respect to image quality using a phantom, a channelized hotelling observer module as a model observer, and a printer, a plaque, or an electronic display includes scanning and producing images for a plurality of sections of the phantom using the radiographic imaging system, wherein the plurality of sections represent a range of patient sizes and doses and wherein the sections of the phantom contain objects of measurable detectability. Also included is analyzing the images to determine detectability results for one or more of the contained objects within the images of the plurality of sections of the phantom, wherein the analyzing includes using a channelized hotelling observer (CHO) module as a model observer; and displaying, via the printer, the plaque, or the electronic display, a continuous detectability performance measurement function using the determined detectability results.

5. 发明申请

US20150282781A1 METHODS AND APPARATUS FOR EXTENDED LOW CONTRAST DETECTABILITY FOR RADIOGRAPHIC IMAGING SYSTEMS 有权
标题翻译：用于放射成像系统的扩展低对比度检测的方法和装置
公开(公告)号：US20150282781A1
公开(公告)日：2015-10-08
申请号：US14542698
申请日：2014-11-17
申请人： David P. Rohler , Thomas L. Toth , Steven H. Izen , Arjun K. Maniyedath
发明人： David P. Rohler , Thomas L. Toth , Steven H. Izen , Arjun K. Maniyedath
IPC分类号： A61B6/00 , A61B6/03
CPC分类号： A61B6/583 , A61B6/032 , A61B6/482 , A61B6/488 , A61B6/542 , A61B6/544 , A61B6/545 , A61B6/584 , A61B6/586
摘要： Evaluating dose performance of a radiographic imaging system with respect to image quality using a phantom, a channelized hotelling observer module as a model observer, and a printer, a plaque, or an electronic display includes scanning and producing images for a plurality of sections of the phantom using the radiographic imaging system, wherein the plurality of sections represent a range of patient sizes and doses and wherein the sections of the phantom contain objects of measurable detectability. Also included is analyzing the images to determine detectability results for one or more of the contained objects within the images of the plurality of sections of the phantom, wherein the analyzing includes using a channelized hotelling observer (CHO) module as a model observer; and displaying, via the printer, the plaque, or the electronic display, a continuous detectability performance measurement function using the determined detectability results.
摘要翻译：使用幻影，作为模型观察者的信道化热门观察者模块和打印机，斑块或电子显示器来评估放射线照相成像系统相对于图像质量的剂量性能，包括扫描和产生多个部分的图像使用放射照相成像系统的幻影，其中所述多个部分表示患者大小和剂量的范围，并且其中所述体模的部分包含可测量的可检测性的对象。还包括分析图像以确定体模的多个部分的图像内的一个或多个所包含的对象的可检测性结果，其中所述分析包括使用通道化的热门观察者（CHO）模块作为模型观察者; 以及使用所确定的可检测性结果，通过打印机显示所述牌或电子显示器的连续可检测性能测量功能。

6. 发明申请

US20140072108A1 METHODS AND APPARATUS FOR EXTENDED LOW CONTRAST DETECTABILITY FOR RADIOGRAPHIC IMAGING SYSTEMS 审中-公开
标题翻译：用于放射成像系统的扩展低对比度检测的方法和装置
公开(公告)号：US20140072108A1
公开(公告)日：2014-03-13
申请号：US13837448
申请日：2013-03-15
申请人： David P. Rohler , Thomas L. Toth , Steven H. Izen , Arjun K. Maniyedath
发明人： David P. Rohler , Thomas L. Toth , Steven H. Izen , Arjun K. Maniyedath
IPC分类号： A61B6/00
摘要： Evaluating dose performance of a radiographic imaging system with respect to image quality using a phantom, a channelized hotelling observer module as a model observer, and a printer, a plaque, or an electronic display includes scanning and producing images for a plurality of sections of the phantom using the radiographic imaging system, wherein the plurality of sections represent a range of patient sizes and doses and wherein the sections of the phantom contain objects of measurable detectability. Also included is analyzing the images to determine detectability results for one or more of the contained objects within the images of the plurality of sections of the phantom, wherein the analyzing includes using a channelized hotelling observer (CHO) module as a model observer; and displaying, via the printer, the plaque, or the electronic display, a continuous detectability performance measurement function using the determined detectability results.
摘要翻译：使用幻影，作为模型观察者的信道化热门观察者模块和打印机，斑块或电子显示器来评估放射线照相成像系统相对于图像质量的剂量性能，包括扫描和产生多个部分的图像使用放射照相成像系统的幻影，其中所述多个部分表示患者大小和剂量的范围，并且其中所述体模的部分包含可测量的可检测性的对象。还包括分析图像以确定体模的多个部分的图像内的一个或多个所包含的对象的可检测性结果，其中所述分析包括使用通道化的热门观察者（CHO）模块作为模型观察者; 以及使用所确定的可检测性结果，通过打印机显示所述牌或电子显示器的连续可检测性能测量功能。

7. 发明授权

US11275012B2 Light extinction tomography for measurement of ice crystals and other small particles 有权
公开(公告)号：US11275012B2
公开(公告)日：2022-03-15
申请号：US17165308
申请日：2021-02-02
申请人： Timothy J. Bencic , David P. Rohler , Amy F. Fagan , Steven H. Izen , Arjun K. Maniyedath
发明人： Timothy J. Bencic , David P. Rohler , Amy F. Fagan , Steven H. Izen , Arjun K. Maniyedath
IPC分类号： G01N15/06 , G01N33/00 , G01N15/00 , G01N33/18
摘要： A tomography duct for wind tunnels includes a plurality of light sources and sensors displaced around a support structure. The light sources are cycled and sensor measurements are made from sensors opposite the light sources. Tomographic algorithms are used to determine an extinction map from the sensor measurements. The extinction map provides details about particles in a cross-section of the air flow through the tomography duct.

8. 发明申请

US20210156785A1 LIGHT EXTINCTION TOMOGRAPHY FOR MEASUREMENT OF ICE CRYSTALS AND OTHER SMALL PARTICLES 有权
公开(公告)号：US20210156785A1
公开(公告)日：2021-05-27
申请号：US17165308
申请日：2021-02-02
申请人： Timothy J. Bencic , David P. Rohler , Amy F. Fagan , Steven H. Izen , Arjun K. Maniyedath
发明人： Timothy J. Bencic , David P. Rohler , Amy F. Fagan , Steven H. Izen , Arjun K. Maniyedath
IPC分类号： G01N15/06 , G01N33/00
摘要： A tomography duct for wind tunnels includes a plurality of light sources and sensors displaced around a support structure. The light sources are cycled and sensor measurements are made from sensors opposite the light sources. Tomographic algorithms are used to determine an extinction map from the sensor measurements. The extinction map provides details about particles in a cross-section of the air flow through the tomography duct.

9. 发明授权

US10908061B2 Light extinction tomography for measurement of ice crystals and other small particles 有权
公开(公告)号：US10908061B2
公开(公告)日：2021-02-02
申请号：US16126558
申请日：2018-09-10
申请人： Timothy J. Bencic , David P. Rohler , Amy F. Fagan , Steven H. Izen , Arjun K. Maniyedath
发明人： Timothy J. Bencic , David P. Rohler , Amy F. Fagan , Steven H. Izen , Arjun K. Maniyedath
IPC分类号： G01N15/06 , G01N33/00 , G01N15/00 , G01N33/18
摘要： A tomography duct for wind tunnels includes a plurality of light sources and sensors displaced around a support structure. The light sources are cycled and sensor measurements are made from sensors opposite the light sources. Tomographic algorithms are used to determine an extinction map from the sensor measurements. The extinction map provides details about particles in a cross-section of the air flow through the tomography duct.

10. 发明授权

US10073023B2 Light extinction tomography for measurement of ice crystals and other small particles 有权
公开(公告)号：US10073023B2
公开(公告)日：2018-09-11
申请号：US15170715
申请日：2016-06-01
申请人： Timothy J. Bencic , David P. Rohler , Amy F. Fagan , Steven H. Izen , Arjun K. Maniyedath
发明人： Timothy J. Bencic , David P. Rohler , Amy F. Fagan , Steven H. Izen , Arjun K. Maniyedath
IPC分类号： G01N21/00 , G01N15/06 , G01N33/00 , G01N15/00 , G01N33/18
CPC分类号： G01N15/06 , G01N33/0009 , G01N33/0031 , G01N33/0036 , G01N2015/0026 , G01N2015/0046 , G01N2015/0693 , G01N2033/1873
摘要： A tomography duct for wind tunnels includes a plurality of light sources and sensors displaced around a support structure. The light sources are cycled and sensor measurements are made from sensors opposite the light sources. Tomographic algorithms are used to determine an extinction map from the sensor measurements. The extinction map provides details about particles in a cross-section of the air flow through the tomography duct.

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