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公开(公告)号：US20150260875A1
公开(公告)日：2015-09-17
申请号：US14440436
申请日：2012-11-02
Applicant: ANALOGIC CORPORATION
Inventor： David Schafer , Ram Naidu , Serge Savard
CPC classification number: G01V5/005 , A61B6/032 , A61B6/4266 , G01N23/04 , G01N23/046 , G01V5/0008
Abstract: Among other things, radiation systems and techniques for generating volumetric data and projections images of an object(s) under examination are provided. The radiation system comprises at least two detector arrays and at least one radiation source. During an examination, the radiation source and at least one detector array are rotated about the object while a second detector array is substantially fixed in place. In one embodiment, the radiation source is configured to, at times, illuminate the first detector array and, at times, illuminate the second detector array. For example, the radiation source may illuminate the first detector array during nearly all of the rotation while the second detector array is merely illuminated at a single gantry rotation angle. Information generated by the second detector array may be utilized to yield volumetric data while information generated by the first detector array may be utilized to yield a projection image, for example.
Abstract translation: 其中包括用于产生检测对象的体积数据和投影图像的辐射系统和技术。 辐射系统包括至少两个检测器阵列和至少一个辐射源。 在检查期间，辐射源和至少一个检测器阵列围绕物体旋转，而第二检测器阵列基本固定就位。 在一个实施例中，辐射源被配置成有时照亮第一检测器阵列，并且有时照亮第二检测器阵列。 例如，辐射源可以在几乎所有旋转期间照亮第一检测器阵列，而第二检测器阵列仅以单个机架旋转角照射。 例如，由第二检测器阵列生成的信息可用于产生体数据，同时由第一检测器阵列产生的信息可用于产生投影图像。
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公开(公告)号：US08958524B2
公开(公告)日：2015-02-17
申请号：US13756288
申请日：2013-01-31
Applicant: Analogic Corporation
Inventor： Chitra Subramanian , Ram Naidu
CPC classification number: G01T7/005 , A61B6/02 , A61B6/032 , A61B6/482 , A61B6/585 , G01N23/046 , G01N2223/303 , G01N2223/419
Abstract: Among other things, one or more techniques and/or systems for correcting projection data representative of an object under examination to account for drift in a radiation system are provided. System drift is measured by performing a drift calibration on the radiation system. During the drift calibration, a temperature of the radiation system is measured and one or more calibration tables, such as an air table and/or offset table, are corrected based upon the measured temperature to derive a theoretical projection (e.g., indicative of measurements that are expected to be acquired from the radiation system during the drift calibration). The theoretical projection is compared to an actual projection acquired during the drift calibration to measure a degree of drift. Based upon the measured degree of drift, one or more correction factors are determined to correct and/or otherwise adjust for system drift in a projection respective of the object.
Abstract translation: 提供了一种或多种用于校正表示被检查物体的投影数据以解决辐射系统中的漂移的技术和/或系统。 通过在辐射系统上执行漂移校准来测量系统漂移。 在漂移校准期间，测量辐射系统的温度，并且基于测量的温度校正一个或多个校准表，例如空气台和/或偏移台，以得到理论投影（例如，指示测量值 预期在漂移校准期间从辐射系统中获取）。 将理论投影与在漂移校准期间获取的实际投影进行比较以测量漂移度。 基于测量的漂移程度，确定一个或多个校正因子以校正和/或以其他方式调整对象物体中的投影中的系统漂移。
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3.发明授权公开(公告)号：US10292678B2
公开(公告)日：2019-05-21
申请号：US14862727
申请日：2015-09-23
Applicant: Analogic Corporation
Inventor： Ram Naidu , Jason Plante
Abstract: A method includes receiving an intra-procedure image of a region of interest of an object. The intra-procedure image includes a representation of an instrument in the object. The method further includes identifying a location of the instrument in the object in the intra-procedure image. The method further includes combining the intra-procedure image with a pre-procedure image of the region of interest. The pre-procedure image includes a planned trajectory for the instrument from a surface of the object to a target in the object and segmented structure(s) to be avoided by the instrument during the procedure. The method further includes segmenting the same structure(s) in the intra-procedure image relative to the instrument using the segmented structure(s) in the pre-procedure image. The method further includes computing a risk of the instrument contacting the structure(s) along the trajectory with the identified location, the trajectory, and the segmented structure(s) in the intra-procedure image.
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4.发明申请公开(公告)号：US20170084022A1
公开(公告)日：2017-03-23
申请号：US14862727
申请日：2015-09-23
Applicant: Analogic Corporation
Inventor： Ram Naidu , Jason Plante
CPC classification number: A61B8/0841 , A61B8/463 , A61B8/5223 , A61B8/5261 , A61B34/10 , A61B2034/107
Abstract: A method includes receiving an intra-procedure image of a region of interest of an object. The intra-procedure image includes a representation of an instrument in the object. The method further includes identifying a location of the instrument in the object in the intra-procedure image. The method further includes combining the intra-procedure image with a pre-procedure image of the region of interest. The pre-procedure image includes a planned trajectory for the instrument from a surface of the object to a target in the object and segmented structure(s) to be avoided by the instrument during the procedure. The method further includes segmenting the same structure(s) in the intra-procedure image relative to the instrument using the segmented structure(s) in the pre-procedure image. The method further includes computing a risk of the instrument contacting the structure(s) along the trajectory with the identified location, the trajectory, and the segmented structure(s) in the intra-procedure image.
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5.发明授权Synthetic image generation by combining image of object under examination with image of target 有权将检查对象的图像与目标图像相结合的合成图像生成公开(公告)号：US09355502B2
公开(公告)日：2016-05-31
申请号：US13712153
申请日：2012-12-12
Applicant: Analogic Corporation
Inventor： Andrew Litvin , Ram Naidu
CPC classification number: G06T19/20 , G01N23/046 , G01V5/0008 , G06T5/50 , G06T11/008 , G06T2207/20221 , G06T2219/2004
Abstract: Among other things, one or more techniques and/or systems for combining a three-dimensional image of a target with a three-dimensional image of an object that is under examination via radiation to generate a three-dimensional synthetic image are provided. Although the target is not actually comprised within the object under examination, the three-dimensional synthetic image is intended to cause the target to appear to be comprised within the object. In one embodiment, one or more artifacts may be intentionally introduced into the three-dimensional synthetic image that are not comprised within the three-dimensional image of the target and/or within the three-dimensional image of the object to generate a synthetic image that more closely approximates in appearance a three-dimensional image that would have been generated from an examination had the target been comprised within the object.
Abstract translation: 提供了一种或多种用于将目标的三维图像与通过辐射进行检查的对象的三维图像组合以产生三维合成图像的一种或多种技术和/或系统。 虽然目标实际上不包括在被检查对象内，但三维合成图像旨在使目标看起来包含在对象内。 在一个实施例中，可以有意地将一个或多个伪像引入到不包括在目标的三维图像内和/或在对象的三维图像内的三维合成图像中，以产生合成图像， 在外观上更接近地近似于从检查产生的三维图像，目标被包括在对象内。
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Patent Agency Ranking
公开(公告)号：US20180303463A1
公开(公告)日：2018-10-25
申请号：US15569534
申请日：2015-04-28
Applicant: Analogic Corporation
Inventor： Eric Francis Zanin , Spiros Mantzavinos , Ram Naidu
CPC classification number: A61B8/5223 , A61B5/055 , A61B6/5235 , A61B8/0841 , A61B8/12 , A61B8/4218 , A61B8/4461 , A61B8/4466 , A61B8/4488 , A61B8/469 , A61B8/483 , A61B8/5246 , A61B8/5261 , A61B8/54
Abstract: A method includes registering a region of interest in 3-D imaging data with an initial ultrasound image so that the region of interest is in an imaging plane of the initial ultrasound image. The method further includes acquiring a subsequent ultrasound image with a transducer array. The method further includes comparing the initial ultrasound image and the subsequent ultrasound image. The method further includes steering at least one of the transducer array or an instrument based on a result of the comparing so that at least one of the region of interest or the instrument is in the imaging plane.
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公开(公告)号：US09739724B2
公开(公告)日：2017-08-22
申请号：US14640710
申请日：2015-03-06
Applicant: Analogic Corporation
Inventor： Zhengrong Ying , Sergey Simanovsky , Ram Naidu , Sorin Marcovici
CPC classification number: G01N23/046 , A61B6/027 , A61B6/032 , A61B6/4007 , A61B6/4028 , A61B6/405 , A61B6/466 , A61B6/482 , G01N2223/419 , G01T7/08 , G01V5/005
Abstract: A CT scanning system may include a multi-pixel x-ray source, and a detector array. The multi-pixel x-ray source may have a plurality of pixels that are disposed along a z-axis, and that are sequentially activated so as to controllably emit x-rays in response to incident electrons. The detector array may have one or more rows of x-ray detectors that detect the x-rays that are emitted from the pixels and have traversed an object, and generate data for CT image reconstruction system. In third generation CT scanning systems, the number of detector rows may be reduced. Multi-pixel x-ray source implementation of saddle curve geometry may render a single rotation single organ scan feasible. Using a multi-pixel x-ray source in stationary CT scanning systems may allow x-ray beam design with a minimal coverage to satisfy mathematical requirements for reconstruction.
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公开(公告)号：US09535186B2
公开(公告)日：2017-01-03
申请号：US14901531
申请日：2013-06-25
Applicant: ANALOGIC CORPORATION
Inventor： Andrew Litvin , Ram Naidu , Sergey Simanovsky
CPC classification number: G01V5/005 , G01V5/0066 , G06T11/005
Abstract: Among other things, computed tomography (CT) systems and/or techniques for generating projections images of an object(s) under examination via a CT system are provided. A surface about which the projection image is focused is defined and data yielded from vertical rays of radiation intersecting the surface and data yielded from non-vertical rays intersecting the surface are used to generate the projection image. In some embodiments, the projection image is assembled from one or more projection lines, which are respectively associated with a line-path contacting the surface and extend in a direction parallel to an axis of rotation for a radiation source. A projection line is indicative of a degree of attenuation experienced by rays intersecting a line-path associated with the projection line and emitted while the radiation source was at a particular segment of a radiation source trajectory.
Abstract translation: 其中包括计算机断层摄影（CT）系统和/或用于通过CT系统产生检查对象的投影图像的技术。 定义投影图像聚焦的表面，并且从与表面相交的垂直辐射光产生的数据和从与该表面相交的非垂直射线产生的数据用于产生投影图像。 在一些实施例中，投影图像由一个或多个投影线组装，投影线分别与接触表面的线路相关联，并且在平行于辐射源的旋转轴线的方向上延伸。 投影线表示与放射线相关联的线路相交的射线所经历的衰减程度，并且在辐射源处于辐射源轨迹的特定段时发射。
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公开(公告)号：US11116480B2
公开(公告)日：2021-09-14
申请号：US15569534
申请日：2015-04-28
Applicant: Analogic Corporation
Inventor： Eric Francis Zanin , Spiros Mantzavinos , Ram Naidu
Abstract: A method includes registering a region of interest in 3-D imaging data with an initial ultrasound image so that the region of interest is in an imaging plane of the initial ultrasound image. The method further includes acquiring a subsequent ultrasound image with a transducer array. The method further includes comparing the initial ultrasound image and the subsequent ultrasound image. The method further includes steering at least one of the transducer array or an instrument based on a result of the comparing so that at least one of the region of interest or the instrument is in the imaging plane.
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公开(公告)号：US09696452B2
公开(公告)日：2017-07-04
申请号：US14440436
申请日：2012-11-02
Applicant: ANALOGIC CORPORATION
Inventor： David Schafer , Ram Naidu , Serge Savard
CPC classification number: G01V5/005 , A61B6/032 , A61B6/4266 , G01N23/04 , G01N23/046 , G01V5/0008
Abstract: Among other things, radiation systems and techniques for generating volumetric data and projections images of an object(s) under examination are provided. The radiation system comprises at least two detector arrays and at least one radiation source. During an examination, the radiation source and at least one detector array are rotated about the object while a second detector array is substantially fixed in place. In one embodiment, the radiation source is configured to, at times, illuminate the first detector array and, at times, illuminate the second detector array. For example, the radiation source may illuminate the first detector array during nearly all of the rotation while the second detector array is merely illuminated at a single gantry rotation angle. Information generated by the second detector array may be utilized to yield volumetric data while information generated by the first detector array may be utilized to yield a projection image, for example.
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