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公开(公告)号：US10937209B2
公开(公告)日：2021-03-02
申请号：US15738741
申请日：2016-08-03
发明人： Duhgoon Lee , Jong Beom Ra , Kyoung-yong Lee , Toshihiro Rifu , Seungeon Kim , Seokhwan Jang
摘要： Provided are a tomography imaging apparatus and a method of reconstructing a tomography image which may more accurately measure a motion of an object to be tomography-imaged. In detail, the tomography imaging apparatus and the method of reconstructing a tomography image may obtain information indicating a motion of a moving object according to a time, may perform motion correction based on the obtained motion information, and may reconstruct a target image with reduced motion artifacts.
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公开(公告)号：US09468422B2
公开(公告)日：2016-10-18
申请号：US14861083
申请日：2015-09-22
发明人： Dong Gyu Hyun , Jong Beom Ra , Duhgoon Lee , Woo Hyun Nam
CPC分类号： A61B8/5207 , A61B6/03 , A61B6/032 , A61B6/5247 , A61B8/0833 , A61B8/0891 , A61B8/4254 , A61B8/4416 , A61B8/4444 , A61B8/461 , A61B8/469 , A61B8/483 , A61B8/488 , A61B8/5223 , A61B8/5261 , A61B8/58 , G01S15/899 , G06T7/11 , G06T7/33 , G06T7/337 , G06T11/00 , G06T2207/10028 , G06T2207/10081 , G06T2207/10136 , G06T2207/20221 , G06T2207/30056 , G06T2207/30101
摘要： Sensor coupled to the ultrasound probe provides position information related to an ultrasound imaging position in the object. A processor performs first registration between the medical image and the ultrasound image based on the anatomical feature in the ultrasound image and a medical image of the object acquired by imaging modality different from the ultrasound apparatus, obtains first registration information which provides a relationship between a coordinate system of the medical image and a coordinate system of the ultrasound image based on the first registration, performs second registration between the sensor and the medical image based on the position information and the first registration information, and obtains second registration information based on the second registration. A display may display a portion of the medical image corresponding to the ultrasound imaging position based on the second registration information.
摘要翻译： 耦合到超声波探头的传感器提供与物体中的超声成像位置相关的位置信息。 处理器基于超声图像中的解剖特征和通过与超声波装置不同的成像模式获取的物体的医学图像来执行医学图像和超声波图像之间的第一注册，获得提供坐标的关系的第一注册信息 基于第一登记的医疗图像的系统和超声图像的坐标系，基于位置信息和第一登记信息，在传感器和医疗图像之间进行第二次登记，并且基于第二登记获得第二登记信息 。 显示器可以基于第二注册信息显示与超声成像位置相对应的医学图像的一部分。
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公开(公告)号：US09545242B2
公开(公告)日：2017-01-17
申请号：US14861028
申请日：2015-09-22
发明人： Dong Gyu Hyun , Jong Beom Ra , Duhgoon Lee , Woo Hyun Nam , Won Chul Bang
CPC分类号： A61B6/5247 , A61B6/03 , A61B6/032 , A61B6/488 , A61B8/0891 , A61B8/4254 , A61B8/4416 , A61B8/4444 , A61B8/483 , A61B8/488 , A61B8/5223 , A61B8/58 , G01S15/899 , G06K9/4604 , G06T7/33 , G06T2207/10072 , G06T2207/10081 , G06T2207/10088 , G06T2207/10104 , G06T2207/10108 , G06T2207/10136 , G06T2207/30056
摘要： Sensor coupled to the ultrasound probe provides position information related to an ultrasound imaging position in the object. A processor performs first registration between the medical image and the ultrasound image based on the anatomical feature in the ultrasound image and a medical image of the object acquired by imaging modality different from the ultrasound apparatus, obtains first registration information which provides a relationship between a coordinate system of the medical image and a coordinate system of the ultrasound image based on the first registration, performs second registration between the sensor and the medical image based on the position information and the first registration information, and obtains second registration information based on the second registration. A display may display a portion of the medical image corresponding to the ultrasound imaging position based on the second registration information. The medical image includes one of SPECT, PET, MR, PET-CT, and PET-MR image.
摘要翻译： 耦合到超声波探头的传感器提供与物体中的超声成像位置相关的位置信息。 处理器基于超声图像中的解剖特征和通过与超声波装置不同的成像模式获取的物体的医学图像来执行医学图像和超声波图像之间的第一注册，获得提供坐标的关系的第一注册信息 基于第一登记的医疗图像的系统和超声图像的坐标系，基于位置信息和第一登记信息，在传感器和医疗图像之间进行第二次登记，并且基于第二登记获得第二登记信息 。 显示器可以基于第二注册信息显示与超声成像位置相对应的医学图像的一部分。 医学图像包括SPECT，PET，MR，PET-CT和PET-MR图像之一。
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公开(公告)号：US11158093B2
公开(公告)日：2021-10-26
申请号：US16637453
申请日：2018-08-06
发明人： Kihong Son , Jong Beom Ra , Seokhwan Jang , Kyoung-Yong Lee , Duhgoon Lee , Do Il Kim , Seungeon Kim
摘要： A medical imaging apparatus includes an X-ray source configured to irradiate X-rays to an object; an X-ray detector configured to detect the X-rays radiated from the X-ray source to obtain projection data; and an image processor configured to reconstruct the projection data based on a motion parameter representing movement of at least one of the object, the X-ray source, and the X-ray detector, and to generate a medical image by applying a weighting process to the reconstructed projection data.
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公开(公告)号：US10565744B2
公开(公告)日：2020-02-18
申请号：US15640344
申请日：2017-06-30
发明人： Duhgoon Lee , Jong Beom Ra , Seungeon Kim , Kyoung-yong Lee , Ji-young Choi , Yongjin Chang
IPC分类号： G06T11/00
摘要： Provided is a medical image processing apparatus including a processor. The processor obtains raw data in a first phase section and generates first motion information by using at least one partial angle reconstruction (PAR) image pair including two PAR images respectively obtained in two phase sections in the first phase section that face each other. The processor also generates a summed image by summing a plurality of PAR images obtained at different phases within the first phase section by using the first motion information Second motion information is generated by updating the first motion information such that an image metric representing motion artifacts is minimized when being calculated from the summed image and a reconstructed image is generated by applying the second motion information to the raw data.
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公开(公告)号：US10278663B2
公开(公告)日：2019-05-07
申请号：US15386143
申请日：2016-12-21
发明人： Dong Gyu Hyun , Jong Beom Ra , Duhgoon Lee , Woo Hyun Nam , Won Chul Bang
摘要： Sensor coupled to the ultrasound probe provides position information related to an ultrasound imaging position in the object. A processor performs first registration between the medical image and the ultrasound image based on the anatomical feature in the ultrasound image and a medical image of the object acquired by imaging modality different from the ultrasound apparatus, obtains first registration information which provides a relationship between a coordinate system of the medical image and a coordinate system of the ultrasound image based on the first registration, performs second registration between the sensor and the medical image based on the position information and the first registration information, and obtains second registration information based on the second registration. A display displays a portion of the medical image corresponding to the ultrasound imaging position based on the second registration information. The medical image includes one among SPECT, PET, MR, PET-CT, and PET-MR image.
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公开(公告)号：US09782151B2
公开(公告)日：2017-10-10
申请号：US15276027
申请日：2016-09-26
发明人： Dong Gyu Hyun , Jong Beom Ra , Duhgoon Lee , Woo Hyun Nam
IPC分类号： A61B8/08 , G06T7/00 , A61B6/00 , A61B8/00 , G01S15/89 , G06T7/33 , G06T11/00 , G06T7/11 , A61B6/03
CPC分类号： A61B8/5207 , A61B6/03 , A61B6/032 , A61B6/5247 , A61B8/0833 , A61B8/0891 , A61B8/4254 , A61B8/4416 , A61B8/4444 , A61B8/461 , A61B8/469 , A61B8/483 , A61B8/488 , A61B8/5223 , A61B8/5261 , A61B8/58 , G01S15/899 , G06T7/11 , G06T7/33 , G06T7/337 , G06T11/00 , G06T2207/10028 , G06T2207/10081 , G06T2207/10136 , G06T2207/20221 , G06T2207/30056 , G06T2207/30101
摘要： A medical imaging apparatus includes an ultrasound probe to transmit and receive an ultrasound signal to obtain an ultrasound image of an object; a sensor coupled to the ultrasound probe to provide a position information related to an ultrasound imaging position in the object; and a processor to extract a certain anatomical feature from the ultrasound image and the certain anatomical feature from a medical image of the object acquired by an imaging modality different from an ultrasound apparatus, perform a first registration between the medical image and the ultrasound image based on the certain anatomical feature, perform a second registration between the sensor and the medical image based on the position information and the first registration, and control a display to display a portion of the medical image corresponding to the ultrasound imaging position based on the second registration.
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公开(公告)号：US09955951B2
公开(公告)日：2018-05-01
申请号：US14752165
申请日：2015-06-26
发明人： Dong Gyu Hyun , Jong Beom Ra , Duhgoon Lee , Woo Hyun Nam
IPC分类号： G06K9/00 , A61B8/08 , A61B6/00 , A61B8/00 , G01S15/89 , G06T7/33 , G06T11/00 , G06T7/11 , A61B6/03
CPC分类号： A61B8/5207 , A61B6/03 , A61B6/032 , A61B6/5247 , A61B8/0833 , A61B8/0891 , A61B8/4254 , A61B8/4416 , A61B8/4444 , A61B8/461 , A61B8/469 , A61B8/483 , A61B8/488 , A61B8/5223 , A61B8/5261 , A61B8/58 , G01S15/899 , G06T7/11 , G06T7/33 , G06T7/337 , G06T11/00 , G06T2207/10028 , G06T2207/10081 , G06T2207/10136 , G06T2207/20221 , G06T2207/30056 , G06T2207/30101
摘要： There is disclosed an embodiment for performing a calibration of a sensor by using an image registration between a three-dimensional ultrasound image and computerized tomography (CT) image. An ultrasound image forming unit includes an ultrasound probe and forms a three-dimensional ultrasound image of a target object. A sensor is coupled to the ultrasound probe. A memory stores a three-dimensional computed tomography (CT) image of the target object and position information on a position between the three-dimensional ultrasound image and the sensor. A processor performs image registration between the three-dimensional CT image and the three-dimensional ultrasound image to form a first transformation function for transforming a position of the sensor to a corresponding position on the three-dimensional CT image and performs calibration of the sensor by applying the position information to the first transformation function.
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9.发明授权System and method for providing 2-dimensional computerized- tomography image corresponding to 2-dimensional ultrasound image 有权用于提供对应于二维超声图像的二维计算机断层摄影图像的系统和方法公开(公告)号：US09186062B2
公开(公告)日：2015-11-17
申请号：US13867799
申请日：2013-04-22
发明人： Dong-Gyu Hyun , Jong-Beom Ra , Duhgoon Lee , Woo Hyun Nam
CPC分类号： A61B5/0035 , A61B6/032 , A61B8/13 , G06F19/00 , G06T7/38 , G06T2207/30004
摘要： Embodiments for providing a 2-dimensional (D) computerized-tomography (CT) image corresponding to a 2-D ultrasound image through image registration between 3-D ultrasound and CT images are disclosed. An imaging system comprises a CT imaging unit, an ultrasound image forming unit, a storing unit, a processor and a display unit. The processor extracts the 2-D CT image from the 3-D ultrasound-CT registered image by performing a rigid-body transform upon the 3-D ultrasound image and calculating similarities between reference images and the 2-D ultrasound images, wherein the reference images are obtained through the rigid-body transform.
摘要翻译： 公开了通过3-D超声和CT图像之间的图像配准来提供对应于2-D超声图像的二维（D）计算机断层摄影（CT）图像的实施例。 成像系统包括CT成像单元，超声波图像形成单元，存储单元，处理器和显示单元。 处理器通过对3-D超声图像执行刚体变换并计算参考图像和2-D超声图像之间的相似度，从3-D超声CT登记图像中提取2-D CT图像，其中参考 通过刚体变换获得图像。
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公开(公告)号：US10952694B2
公开(公告)日：2021-03-23
申请号：US16285502
申请日：2019-02-26
申请人： HITACHI, LTD.
发明人： Kihong Son , Kyoung-Yong Lee , Duhgoon Lee , Wooyoung Jang , Jaemoon Jo
摘要： A method and apparatus correct a computed tomography (CT) image with motion artifacts. The method of correcting a CT image may include: obtaining a reconstruction image of an object by reconstructing an X-ray projection image; measuring a parameter value related to motion artifacts that occur due to movement of the object in at least one of the X-ray projection image or the reconstruction image; calculating a correction possibility for the reconstruction image based on the measured parameter value; and determining whether to perform correction on the reconstruction image based on the calculated correction possibility.
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