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公开(公告)号：US20210298697A1
公开(公告)日：2021-09-30
申请号：US17211271
申请日：2021-03-24
Applicant: General Electric Company
Inventor： Yasuhiro Imai , Yoshihiro Oda , Ayako Matsumi
Abstract: The present disclosure relates to a system and method with which an imaged range in the past can be reproduced with high precision. In accordance with certain embodiments, an X-ray CT apparatus includes a camera-image producing section for producing a first camera image of a patient, a landmark fixing section for fixing a landmark with reference to a chest of the patient, and an imaged-range defining section for defining a first imaged range in a first scan based on landmark data representing the landmark. The camera-image producing section acquires a second camera image of the patient in a follow-up examination, the landmark fixing section fixes a second landmark with reference to the chest of the patient contained in the second image, and the imaged-range defining section defines second imaged range in a second scan based on landmark data representing the landmarks, and imaged-range data representing the first imaged range.
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Patent Agency Ranking
公开(公告)号：US11672494B2
公开(公告)日：2023-06-13
申请号：US17211271
申请日：2021-03-24
Applicant: General Electric Company
Inventor： Yasuhiro Imai , Yoshihiro Oda , Ayako Matsumi
CPC classification number: A61B6/0492 , A61B6/032 , A61B6/0407
Abstract: The present disclosure relates to a system and method with which an imaged range in the past can be reproduced with high precision. In accordance with certain embodiments, an X-ray CT apparatus includes a camera-image producing section for producing a first camera image of a patient, a landmark fixing section for fixing a landmark with reference to a chest of the patient, and an imaged-range defining section for defining a first imaged range in a first scan based on landmark data representing the landmark. The camera-image producing section acquires a second camera image of the patient in a follow-up examination, the landmark fixing section fixes a second landmark with reference to the chest of the patient contained in the second image, and the imaged-range defining section defines second imaged range in a second scan based on landmark data representing the landmarks, and imaged-range data representing the first imaged range.
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公开(公告)号：US11540799B2
公开(公告)日：2023-01-03
申请号：US17120724
申请日：2020-12-14
Applicant: General Electric Company
Inventor： Yasuhiro Imai
IPC: A61B6/00
Abstract: To provide a technique with which dose indices can be managed for body parts in a range to be imaged on a body part-by-body part basis, an X-ray CT apparatus comprises: image producing unit (51) for producing a scout image (10) of a patient; defining unit (52) for defining a range (11) to be imaged in the scout image (10); segmenting unit (53) for segmenting the range (11) to be imaged into two body parts; identifying unit (54) for identifying which one of body parts (12) included in a human body each of the two body parts corresponds to; and calculating unit (55) for calculating a dose index for each of the two body parts.
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公开(公告)号：US20160012615A1
公开(公告)日：2016-01-14
申请号：US14330198
申请日：2014-07-14
Applicant: General Electric Company
Inventor： Hewei Gao , Adam Cohen , Brian Edward Nett , Paavana Sainath , Yasuhiro Imai
CPC classification number: G06T11/005 , A61B6/032 , A61B6/5205 , G06T2211/416
Abstract: A method is provided including acquiring imaging data of an object to be imaged from a computed tomography (CT) detector. The method also includes reconstructing the acquired imaging data into an initial reconstruction image, and performing material characterization of an image volume of the initial reconstruction image to provide a re-mapped image volume. Further, the method includes performing forward projection on the re-mapped image volume to provide forward projection data, and providing an error projection based on the forward projection data. Also, the method includes filtering at least one of the initial reconstruction image, the re-mapped image volume, the forward projection data, or the error projection. The method also includes using the error projection to update the initial reconstruction image to provide an updated reconstruction image.
Abstract translation: 提供一种方法，包括从计算机断层摄影（CT）检测器获取要被成像的对象的成像数据。 该方法还包括将获取的成像数据重建为初始重建图像，以及对初始重建图像的图像体积进行材料表征以提供重新映射的图像体积。 此外，该方法包括在再映射图像体积上执行向前投影以提供前向投影数据，以及基于前向投影数据提供误差投影。 此外，该方法包括对初始重构图像，重新映射的图像体积，前向投影数据或者误差投影中的至少一个进行滤波。 该方法还包括使用误差投影来更新初始重建图像以提供更新的重建图像。
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公开(公告)号：US20210186452A1
公开(公告)日：2021-06-24
申请号：US17120724
申请日：2020-12-14
Applicant: General Electric Company
Inventor： Yasuhiro Imai
IPC: A61B6/00
Abstract: To provide a technique with which dose indices can be managed for body parts in a range to be imaged on a body part-by-body part basis, an X-ray CT apparatus comprises: image producing unit (51) for producing a scout image (10) of a patient; defining unit (52) for defining a range (11) to be imaged in the scout image (10); segmenting unit (53) for segmenting the range (11) to be imaged into two body parts; identifying unit (54) for identifying which one of body parts (12) included in a human body each of the two body parts corresponds to; and calculating unit (55) for calculating a dose index for each of the two body parts.
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公开(公告)号：US09483851B2
公开(公告)日：2016-11-01
申请号：US14330198
申请日：2014-07-14
Applicant: General Electric Company
Inventor： Hewei Gao , Adam Cohen , Brian Edward Nett , Paavana Sainath , Yasuhiro Imai
CPC classification number: G06T11/005 , A61B6/032 , A61B6/5205 , G06T2211/416
Abstract: A method is provided including acquiring imaging data of an object to be imaged from a computed tomography (CT) detector. The method also includes reconstructing the acquired imaging data into an initial reconstruction image, and performing material characterization of an image volume of the initial reconstruction image to provide a re-mapped image volume. Further, the method includes performing forward projection on the re-mapped image volume to provide forward projection data, and providing an error projection based on the forward projection data. Also, the method includes filtering at least one of the initial reconstruction image, the re-mapped image volume, the forward projection data, or the error projection. The method also includes using the error projection to update the initial reconstruction image to provide an updated reconstruction image.
Abstract translation: 提供一种方法，包括从计算机断层摄影（CT）检测器获取要被成像的对象的成像数据。 该方法还包括将获取的成像数据重建为初始重建图像，以及对初始重建图像的图像体积进行材料表征以提供重新映射的图像体积。 此外，该方法包括在再映射图像体积上执行向前投影以提供前向投影数据，以及基于前向投影数据提供误差投影。 此外，该方法包括对初始重构图像，重新映射的图像体积，前向投影数据或者误差投影中的至少一个进行滤波。 该方法还包括使用误差投影来更新初始重建图像以提供更新的重建图像。
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