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11. 发明授权

US08364244B2 Methods and systems to facilitate reducing banding artifacts in images 有权
标题翻译：有助于减少图像中带状伪影的方法和系统
公开(公告)号：US08364244B2
公开(公告)日：2013-01-29
申请号：US11286938
申请日：2005-11-23
申请人： Sandeep Dutta , Jianying Li , John Howard Londt , Melissa L. Vass , Xiangyang Tang , Darin R. Okerlund , Jiang Hsieh
发明人： Elisabeth Angelos , Sandeep Dutta , Jianying Li , John Howard Londt , Melissa L. Vass , Xiangyang Tang , Darin R. Okerlund , Jiang Hsieh
IPC分类号： A61B5/05
CPC分类号： G06T11/005 , A61B5/055 , A61B5/7289 , A61B6/032 , A61B6/4085 , A61B6/503 , A61B8/08 , G06T2211/412
摘要： Methods and systems for generating computed tomographic (CT) images from image data acquired during different biological cycles are provided. A computer is programmed to receive a plurality of scan data acquired during a gated acquisition window of each of a plurality of biological cycles, blend the scan data acquired during a first of the plurality of biological cycles with the scan data acquired during a second of the plurality of biological cycles, and construct a final image from the blended data.
摘要翻译：提供了在不同生物循环期间从图像数据生成计算机断层摄影（CT）图像的方法和系统。计算机被编程为接收在多个生物循环中的每一个的选通采集窗口期间采集的多个扫描数据，将在多个生物学循环中的第一个期间获取的扫描数据与在第二个多个生物循环，并从混合数据构建最终图像。

12. 发明授权

US07211046B2 Systems and methods for creating reformatted computed tomography images 有权
标题翻译：用于创建重新格式化的计算机断层摄影图像的系统和方法
公开(公告)号：US07211046B2
公开(公告)日：2007-05-01
申请号：US10326023
申请日：2002-12-19
申请人： Timothy W. Deller , Darin R. Okerlund , Robert Senzig
发明人： Timothy W. Deller , Darin R. Okerlund , Robert Senzig
IPC分类号： A61B8/00
CPC分类号： G06T15/08 , G06T2210/41 , G06T2215/06
摘要： Systems and methods for creating a reformatted medical diagnostic image of a physical structure of the body including obtaining a plurality of axial images of the physical structure of the body and automatically selecting a plurality of points from the plurality of axial images of the physical structure of the body using an algorithm, wherein the plurality of points define a path associated with the physical structure of the body. The systems and methods also including automatically generating a curved reformatted image of the physical structure of the body along the path associated with the physical structure of the body. The systems and methods further including displaying the curved reformatted image of the physical structure of the body for diagnostic purposes.
摘要翻译：用于创建身体的物理结构的重新格式化医学诊断图像的系统和方法，包括获得身体的物理结构的多个轴向图像，并且从所述身体结构的多个轴向图像中自动选择多个点使用算法，其中所述多个点定义与身体的物理结构相关联的路径。所述系统和方法还包括沿着与身体的物理结构相关联的路径自动生成身体的物理结构的弯曲重新格式化图像。所述系统和方法还包括显示用于诊断目的的身体物理结构的弯曲重新格式化图像。

13. 发明授权

US06526117B1 Method and apparatus to minimize phase misregistration artifacts in gated CT images 失效
标题翻译：用于最小化门控CT图像中相位重合失调的方法和装置
公开(公告)号：US06526117B1
公开(公告)日：2003-02-25
申请号：US10044672
申请日：2001-11-09
申请人： Darin R. Okerlund , Sankar V. Srinivas , Jerome F. Knoplioch
发明人： Darin R. Okerlund , Sankar V. Srinivas , Jerome F. Knoplioch
IPC分类号： A61B600
CPC分类号： G06T11/005 , A61B6/027 , A61B6/032 , A61B6/4085 , A61B6/503 , A61B6/541 , G06T2211/412
摘要： A method and apparatus for generating an optimally registered working set of two-dimensional CT images in a gated CT system, the method including, where an acquisition period is divided into sequential acquisition phases, obtaining CT image data for separate phase ranges during each acquisition phase, generating phase image sets including 2D images for each phase range and selecting one phase range image set corresponding to each acquisition phase to generate a working image set where the selected phase range image sets are optimally aligned.
摘要翻译：一种用于在门控CT系统中生成二维CT图像的最佳注册工作集的方法和装置，所述方法包括：将获取周期分为顺序获取阶段，在每个采集阶段获得用于分离相位范围的CT图像数据生成包括每个相位范围的2D图像的相位图像集合，并且选择与每个采集相位对应的一个相位范围图像集合，以生成所选择的相位图像集合被最佳对准的工作图像集。

14. 发明授权

US07313213B1 Step-and-shoot cardiac CT imaging 有权
标题翻译：分步心脏CT成像
公开(公告)号：US07313213B1
公开(公告)日：2007-12-25
申请号：US11160028
申请日：2005-06-06
申请人： Jiang Hsieh , Jianying Li , John H. Londt , Melissa Vass , Darin R. Okerlund , Bernice Hoppel
发明人： Jiang Hsieh , Jianying Li , John H. Londt , Melissa Vass , Darin R. Okerlund , Bernice Hoppel
IPC分类号： G01N23/083
CPC分类号： A61B6/541 , A61B5/0464 , A61B6/027 , A61B6/032
摘要： A CT imaging system has a rotatable gantry, a table movable fore and aft through an opening defined within the rotatable gantry, and a controller that incrementally moves a subject disposed on the table through a number of discrete data acquisition positions for the acquisition of physiologically gated CT data. The controller also coordinates acquisition of imaging data from the subject at a first data acquisition position within a physiological cycle of the subject and only advances the subject to a next data acquisition position if the imaging data acquired at the first data acquisition position is deemed acceptable. The controller also detects irregularities and physiological motion of the subject and responsive thereto, suspends data acquisition until the irregularity passes, such as, suspending data acquisition until a next cardiac cycle if a heart arrhythmia is detected.
摘要翻译： CT成像系统具有可旋转的台架，通过可旋转机架中限定的开口前后运动的桌子，以及控制器，其通过多个离散的数据采集位置递增地移动设置在桌子上的被摄体，用于采集生理门控 CT数据。如果在第一数据获取位置处获取的成像数据被认为是可接受的，则控制器还协调在对象的生理周期内的第一数据获取位置处从被摄体获取成像数据，并仅将对象前进到下一个数据采集位置。控制器还检测对象的不规则和生理运动并响应于此，停止数据采集，直到不规则通过，例如，如果检测到心律不齐，则暂停数据采集直到下一个心动周期。

15. 发明授权

US07613500B2 Methods and apparatus for assisting cardiac resynchronization therapy 有权
标题翻译：辅助心脏再同步治疗的方法和装置
公开(公告)号：US07613500B2
公开(公告)日：2009-11-03
申请号：US10900847
申请日：2004-07-28
申请人： Melissa L. Vass , Darin R. Okerlund , Laurent Launay , Jasbir Singh Sra
发明人： Melissa L. Vass , Darin R. Okerlund , Laurent Launay , Jasbir Singh Sra
IPC分类号： A61B5/05
CPC分类号： A61B6/541 , A61B5/7289 , A61B6/032 , A61B6/503 , A61B6/504 , A61B6/507 , G06T7/0012 , G06T2207/30048
摘要： A method for assisting the planning of an interventional biventricular pacing procedure includes segmenting an image dataset of a heart of a patient to extract a surface of a left ventricle (LV) and a LV myocardium of the patient's heart, utilizing the segmented image dataset to divide the LV into myocardial segments or into a plurality of short axis slices, and detecting wall motion of each short axis slice of phases of a cardiac cycle of the patient's heart with respect to a reference phase. The method also includes localizing a region most recently attaining maximum displacement and a region most recently attaining maximum velocity, and generating 2D or 3D renderings including renderings indicating at least one of time delays of contraction, a maximum displacement, or a maximum velocity.
摘要翻译：一种辅助介入性双心室起搏程序的规划的方法包括：利用分割图像数据集分割患者心脏的图像数据集，以提取患者心脏的左心室（LV）和LV心肌的表面 LV进入心肌段或多个短轴切片，并且相对于参考相位检测患者心脏的心动周期的每个短轴切片的壁运动。该方法还包括定位最近达到最大位移的区域和最近达到最大速度的区域，以及生成2D或3D渲染，包括指示收缩的时间延迟，最大位移或最大速度中的至少一个的渲染。

16. 发明授权

US06628981B2 Adaptive heart rate prediction algorithm for computed tomography imaging 失效
公开(公告)号：US06628981B2
公开(公告)日：2003-09-30
申请号：US10045349
申请日：2001-11-09
申请人： Steven D. Baker , DeAnn Marie Haas , Darin R. Okerlund , Sankar V. Srinivas
发明人： Steven D. Baker , DeAnn Marie Haas , Darin R. Okerlund , Sankar V. Srinivas
IPC分类号： A61B500
CPC分类号： A61B6/541 , A61B6/032 , G06F19/00
摘要： A database is created that contains a plurality of data items gathered from many human beings wherein the data items affect the heart rate of a patient during a CT imaging procedure. Regression analysis is performed on the data in the database to derive an algorithm which defines an predicted heart rate value as a function of the plurality of data items. Specifically, values for the plurality of data items are obtained for the particular patient to be imaged and the algorithm is applied to those data items to predict the patient's heart rate which will occur during the CT imaging procedure. The predicted heart rate is employed to defined operating parameters of the CT procedure, such as the rate at which the x-ray source and detector rotate around a patient and the speed at which the patient moves through the imaging plane.

17. 发明申请

US20090141856A1 STEP-AND-SHOOT CARDIAC CT IMAGING 有权
标题翻译： STEP-AND-SHOOT CARDIAC CT成像
公开(公告)号：US20090141856A1
公开(公告)日：2009-06-04
申请号：US12371854
申请日：2009-02-16
申请人： Jiang Hsieh , Jianying Li , John H. Londt , Melissa Vass , Darin R. Okerlund , Bernice Hoppel
发明人： Jiang Hsieh , Jianying Li , John H. Londt , Melissa Vass , Darin R. Okerlund , Bernice Hoppel
IPC分类号： A61B6/00 , A61B5/04
CPC分类号： A61B6/503 , A61B6/027 , A61B6/0457 , A61B6/541
摘要： The present invention is directed to a method and system of controlling rotation of a gantry to rotate at a rotational speed such that a desired relationship between center projection angles of neighboring partial scans is maintained.
摘要翻译：本发明涉及一种控制台架的旋转以旋转速度旋转的方法和系统，使得维持相邻部分扫描的中心投影角度之间的期望关系。

18. 发明授权

US07313215B2 Step-and-shoot cardiac CT imaging 有权
标题翻译：分步心脏CT成像
公开(公告)号：US07313215B2
公开(公告)日：2007-12-25
申请号：US11160026
申请日：2005-06-06
申请人： Jiang Hsieh , Jianying Li , John H. Londt , Melissa Vass , Darin R. Okerlund , Bernice Hoppel
发明人： Jiang Hsieh , Jianying Li , John H. Londt , Melissa Vass , Darin R. Okerlund , Bernice Hoppel
IPC分类号： G01N23/083
CPC分类号： A61B6/503 , A61B6/027 , A61B6/0457 , A61B6/541
摘要： The present invention is directed to a method and system of controlling rotation of a gantry to rotate at a rotational speed such that a desired relationship between center projection angles of neighboring partial scans is maintained.
摘要翻译：本发明涉及一种控制台架的旋转以旋转速度旋转的方法和系统，使得维持相邻部分扫描的中心投影角度之间的期望关系。

19. 发明授权

US06968032B2 Systems and methods for filtering images 失效
公开(公告)号：US06968032B2
公开(公告)日：2005-11-22
申请号：US10739619
申请日：2003-12-18
申请人： Kelly Ann Mohr , Darin R. Okerlund , Laurent Launay , Helen Jane Thomson
发明人： Kelly Ann Mohr , Darin R. Okerlund , Laurent Launay , Helen Jane Thomson
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/4085 , Y10S378/901
摘要： A method for filtering images is provided. The method includes obtaining at least one set of image data of a subject using an imaging system, removing at least one slice of image data from the at least one set to form a filtered set, and reconstructing images from the filtered set.

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