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    Positron Emission Tomography and Method for Correcting Attenuation of PET Image Using Magnetic Resonance Image
    1.
    发明申请
    Positron Emission Tomography and Method for Correcting Attenuation of PET Image Using Magnetic Resonance Image 审中-公开
    正电子发射断层扫描和使用磁共振图像校正PET图像的衰减的方法

    公开(公告)号：US20130101193A1

    公开(公告)日：2013-04-25

    申请号：US13277952

    申请日：2011-10-20

    申请人： Jong Beom RA ,  Woo Hyun Nam ,  Kye Young Jeong ,  Duhgoon Lee ,  Ji Hye Kim

    发明人： Jong Beom RA ,  Woo Hyun Nam ,  Kye Young Jeong ,  Duhgoon Lee ,  Ji Hye Kim

    IPC分类号： G06K9/00

    CPC分类号： G06T11/005

    摘要： A positron emission tomography (PET) image attenuation correction method may be provided. The PET image attenuation correction method may include obtaining n three-dimensional (3D) magnetic resonance (MR) images and n 3D PET images classified based on a breathing state of an examined patient, generating attenuation correction maps with respect to the n 3D MR images using a single computed tomography (CT) image, obtained in advance, associated with the patient, correcting attenuation of the n 3D PET images based on the generated attenuation correction maps, and generating a single PET image by combining the n attenuation-corrected 3D PET images.

    摘要翻译： 可以提供正电子发射断层摄影（PET）图像衰减校正方法。 PET图像衰减校正方法可以包括获得基于被检查患者的呼吸状态分类的n个三维（3D）磁共振（MR）图像和n个3D PET图像，生成相对于n个3D MR图像的衰减校正图 使用与患者相关联的预先获得的单个计算机断层摄影（CT）图像，基于所生成的衰减校正图来校正n个3D PET图像的衰减，并且通过组合n个衰减校正的3D PET来生成单个PET图像 图片。

    PROVIDING A 2-DIMENSIONAL CT IMAGE CORRESPONDING TO A 2-DIMENSIONAL ULTRASOUND IMAGE
    3.
    发明申请
    PROVIDING A 2-DIMENSIONAL CT IMAGE CORRESPONDING TO A 2-DIMENSIONAL ULTRASOUND IMAGE 审中-公开
    提供与二维超声图像相关的二维CT图像

    公开(公告)号：US20110028843A1

    公开(公告)日：2011-02-03

    申请号：US12846528

    申请日：2010-07-29

    申请人： Dong Gyu Hyun ,  Jong Beom Ra ,  Duhgoon Lee ,  Woo Hyun Nam

    发明人： Dong Gyu Hyun ,  Jong Beom Ra ,  Duhgoon Lee ,  Woo Hyun Nam

    IPC分类号： A61B8/14

    CPC分类号： A61B8/4218 ,  G06T7/38 ,  G06T2207/30004

    摘要： There is disclosed a system and method for providing a 2-dimensional CT image corresponding to a 2-dimensional ultrasound image by performing an image registration between a 3-dimensional ultrasound image and a 3-dimensional CT image. The system comprises: a CT image forming unit configured to form a plurality of 3-dimensional CT images for an object of interest inside a target object; an ultrasound image forming unit configured to form at least one 3-dimensional ultrasound image for the object of interest; a processor configured to perform image registration between the 3-dimensional CT images and the at least one 3-dimensional ultrasound image to obtain a first transform function; and a user input unit configured to receive input information from a user, wherein the ultrasound image forming unit is further configured to form a 2-dimensional ultrasound image from the at least one 3-dimensional ultrasound image based on the input information, and wherein the processor is further configured to obtain a plurality of 2-dimensional CT images from the 3-dimensional CT images based on the input information and the first transform function and to detect similarities between the 2-dimensional ultrasound image and the 2-dimensional CT images to select one of the 2-dimensional CT images corresponding to the 2-dimensional ultrasound image.

    摘要翻译： 公开了一种通过在3维超声图像和3维CT图像之间进行图像配准来提供与2维超声图像对应的2维CT图像的系统和方法。 该系统包括：CT图像形成单元，被配置为在目标对象内形成用于感兴趣对象的多个3维CT图像; 超声波图像形成单元，被配置为形成用于感兴趣对象的至少一个3维超声图像; 处理器，被配置为在所述3维CT图像与所述至少一个3维超声图像之间执行图像配准以获得第一变换函数; 以及用户输入单元，被配置为从用户接收输入信息，其中所述超声图像形成单元还被配置为基于所述输入信息从所述至少一个3维超声图像形成2维超声图像，并且其中 处理器还被配置为基于输入信息和第一变换函数从三维CT图像获得多个二维CT图像，并且检测二维超声图像与二维CT图像之间的相似性 选择对应于二维超声图像的二维CT图像之一。

    Registration Of CT Image Onto Ultrasound Images
    4.
    发明申请
    Registration Of CT Image Onto Ultrasound Images 有权
    CT图像注册到超声图像

    公开(公告)号：US20090303252A1

    公开(公告)日：2009-12-10

    申请号：US12476153

    申请日：2009-06-01

    申请人： Dong Gyu Hyun ,  Jong Beom Ra ,  Duhgoon Lee ,  Woo Hyun Nam ,  Dong-Goo Kang

    发明人： Dong Gyu Hyun ,  Jong Beom Ra ,  Duhgoon Lee ,  Woo Hyun Nam ,  Dong-Goo Kang

    IPC分类号： G09G5/00

    CPC分类号： A61B6/032 ,  A61B6/5247 ,  A61B6/541 ,  A61B8/00 ,  A61B8/5238 ,  G06T7/33 ,  G06T7/38 ,  G06T2207/10081 ,  G06T2207/10132 ,  G06T2207/30004

    摘要： Embodiments for registering a CT image onto ultrasound images are disclosed. At a preoperative stage, a plurality of first ultrasound images are formed during a respiratory cycle and a CT image is obtained at the maximum inspiration. The CT image is registered onto each of the ultrasound images to thereby form ultrasound-CT registered images. The ultrasound-CT registered images may be stored in the storage unit. Subsequently, at an intraoperative stage, a plurality of second ultrasound images may be sequentially formed in real time. Similarities may be measured between the first ultrasound images and the second ultrasound images, and the ultrasound-CT registered images, each corresponding to each of the first ultrasound images having highest similarity to the second ultrasound image may be retrieved. The retrieved ultrasound image and the second ultrasound image may be displayed at the same time.

    摘要翻译： 公开了将CT图像登记到超声图像上的实施例。 在术前阶段，在呼吸周期中形成多个第一超声图像，并以最大的灵感获得CT图像。 将CT图像登记在每个超声图像上，从而形成超声CT登记图像。 超声CT登记图像可以存储在存储单元中。 随后，在术中阶段，可以实时地依次形成多个第二超声图像。 可以在第一超声波图像和第二超声波图像之间测量相似度，并且可以检索每个对应于与第二超声图像具有最高相似性的第一超声图像中的每一个的超声CT登记图像。 可以同时显示所检索的超声图像和第二超声波图像。

    System and method for providing 2-dimensional computerized-tomography image corresponding to 2-dimensional ultrasound image
    5.
    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：US08447383B2

    公开(公告)日：2013-05-21

    申请号：US12848024

    申请日：2010-07-30

    申请人： Dong Gyu Hyun ,  Jong Beom Ra ,  Duhgoon Lee ,  Woo Hyun Nam

    发明人： Dong Gyu Hyun ,  Jong Beom Ra ,  Duhgoon Lee ,  Woo Hyun Nam

    IPC分类号： A61B5/05

    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。

    Non-Rigid Registration Between CT Images And Ultrasound Images
    6.
    发明申请
    Non-Rigid Registration Between CT Images And Ultrasound Images 有权
    CT图像和超声图像之间的非刚性配准

    公开(公告)号：US20090304252A1

    公开(公告)日：2009-12-10

    申请号：US12477081

    申请日：2009-06-02

    申请人： Dong Gyu Hyun ,  Jong Beom Ra ,  Duhgoon Lee ,  Woo Hyun Nam

    发明人： Dong Gyu Hyun ,  Jong Beom Ra ,  Duhgoon Lee ,  Woo Hyun Nam

    IPC分类号： G06K9/00 ,  A61B8/14

    CPC分类号： A61B5/04284 ,  A61B6/032 ,  A61B6/5247 ,  A61B8/13 ,  A61B8/4416 ,  G06T7/187 ,  G06T7/33 ,  G06T2207/10081 ,  G06T2207/10132 ,  G06T2207/30004

    摘要： There are disclosed embodiments for non-rigid image registration between 3-dimensional ultrasound and CT images by using intensity and gradient information of vessels and diaphragm. An ultrasound image forming unit transmits/receives ultrasound signals to/from a target object to thereby output electrical receive signals, and forms 3-dimensional ultrasound images based on the electrical receive signals. A CT image forming unit forms 3-dimensional CT images of the target object. A registration unit determines first and second objective functions associated with diaphragm and vessel regions of the target object, respectively, based on intensity and gradient information upon portions corresponding to the diaphragm and vessel regions in each of the 3-dimensional ultrasound and CT images. The registration unit performs non-rigid image registration between the 3-dimensional ultrasound images and the 3-dimensional CT images based on the first and second objective functions.

    摘要翻译： 公开了通过使用血管和隔膜的强度和梯度信息在3维超声和CT图像之间进行非刚性图像配准的实施例。 超声波图像形成单元向目标对象发送/接收超声信号，从而输出电接收信号，并且基于电接收信号形成3维超声图像。 CT图像形成单元形成目标对象的3维CT图像。 登记单元基于与三维超声和CT图像中的每一个中的隔膜和血管区域相对应的部分上的强度和梯度信息，分别确定与目标对象的隔膜和血管区域相关联的第一和第二目标函数。 注册单元基于第一和第二目标函数在3维超声图像和3维CT图像之间执行非刚性图像配准。

    Non-rigid registration between CT images and ultrasound images
    8.
    发明授权
    Non-rigid registration between CT images and ultrasound images 有权
    CT图像与超声图像之间的非刚性配准

    公开(公告)号：US08369597B2

    公开(公告)日：2013-02-05

    申请号：US12477081

    申请日：2009-06-02

    申请人： Dong Gyu Hyun ,  Jong Beom Ra ,  Duhgoon Lee ,  Woo Hyun Nam

    发明人： Dong Gyu Hyun ,  Jong Beom Ra ,  Duhgoon Lee ,  Woo Hyun Nam

    IPC分类号： G06K9/00

    CPC分类号： A61B5/04284 ,  A61B6/032 ,  A61B6/5247 ,  A61B8/13 ,  A61B8/4416 ,  G06T7/187 ,  G06T7/33 ,  G06T2207/10081 ,  G06T2207/10132 ,  G06T2207/30004

    摘要： There are disclosed embodiments for non-rigid image registration between 3-dimensional ultrasound and CT images by using intensity and gradient information of vessels and diaphragm. An ultrasound image forming unit transmits/receives ultrasound signals to/from a target object to thereby output electrical receive signals, and forms 3-dimensional ultrasound images based on the electrical receive signals. A CT image forming unit forms 3-dimensional CT images of the target object. A registration unit determines first and second objective functions associated with diaphragm and vessel regions of the target object, respectively, based on intensity and gradient information upon portions corresponding to the diaphragm and vessel regions in each of the 3-dimensional ultrasound and CT images. The registration unit performs non-rigid image registration between the 3-dimensional ultrasound images and the 3-dimensional CT images based on the first and second objective functions.

    摘要翻译： 公开了通过使用血管和隔膜的强度和梯度信息在3维超声和CT图像之间进行非刚性图像配准的实施例。 超声波图像形成单元向目标对象发送/接收超声信号，从而输出电接收信号，并且基于电接收信号形成3维超声图像。 CT图像形成单元形成目标对象的3维CT图像。 登记单元基于与三维超声和CT图像中的每一个中的隔膜和血管区域相对应的部分上的强度和梯度信息，分别确定与目标对象的隔膜和血管区域相关联的第一和第二目标函数。 注册单元基于第一和第二目标函数在3维超声图像和3维CT图像之间执行非刚性图像配准。

    Registration of CT image onto ultrasound images
    9.
    发明授权
    Registration of CT image onto ultrasound images 有权
    将CT图像注册到超声图像上

    公开(公告)号：US08111892B2

    公开(公告)日：2012-02-07

    申请号：US12476153

    申请日：2009-06-01

    申请人： Dong Gyu Hyun ,  Jong Beom Ra ,  Duhgoon Lee ,  Woo Hyun Nam ,  Dong-Goo Kang

    发明人： Dong Gyu Hyun ,  Jong Beom Ra ,  Duhgoon Lee ,  Woo Hyun Nam ,  Dong-Goo Kang

    IPC分类号： G06K9/00

    CPC分类号： A61B6/032 ,  A61B6/5247 ,  A61B6/541 ,  A61B8/00 ,  A61B8/5238 ,  G06T7/33 ,  G06T7/38 ,  G06T2207/10081 ,  G06T2207/10132 ,  G06T2207/30004

    摘要： Embodiments for registering a CT image onto ultrasound images are disclosed. At a preoperative stage, a plurality of first ultrasound images are formed during a respiratory cycle and a CT image is obtained at the maximum inspiration. The CT image is registered onto each of the ultrasound images to thereby form ultrasound-CT registered images. The ultrasound-CT registered images may be stored in the storage unit. Subsequently, at an intraoperative stage, a plurality of second ultrasound images may be sequentially formed in real time. Similarities may be measured between the first ultrasound images and the second ultrasound images, and the ultrasound-CT registered images, each corresponding to each of the first ultrasound images having highest similarity to the second ultrasound image may be retrieved. The retrieved ultrasound image and the second ultrasound image may be displayed at the same time.

    摘要翻译： 公开了将CT图像登记到超声图像上的实施例。 在术前阶段，在呼吸周期中形成多个第一超声图像，并以最大的灵感获得CT图像。 将CT图像登记在每个超声图像上，从而形成超声CT登记图像。 超声CT登记图像可以存储在存储单元中。 随后，在术中阶段，可以实时地依次形成多个第二超声图像。 可以在第一超声波图像和第二超声波图像之间测量相似度，并且可以检索每个对应于与第二超声图像具有最高相似性的第一超声图像中的每一个的超声CT登记图像。 可以同时显示所检索的超声图像和第二超声波图像。

    SYSTEM AND METHOD FOR PROVIDING 2-DIMENSIONAL COMPUTERIZED-TOMOGRAPHY IMAGE CORRESPONDING TO 2-DIMENSIONAL ULTRASOUND IMAGE
    10.
    发明申请
    SYSTEM AND METHOD FOR PROVIDING 2-DIMENSIONAL COMPUTERIZED-TOMOGRAPHY IMAGE CORRESPONDING TO 2-DIMENSIONAL ULTRASOUND IMAGE 有权
    用于提供二维超声图像相对于二维超声图像的二维计算机图像的系统和方法

    公开(公告)号：US20110028844A1

    公开(公告)日：2011-02-03

    申请号：US12848024

    申请日：2010-07-30

    申请人： Dong Gyu Hyun ,  Jong Beom Ra ,  Duhgoon Lee ,  Woo Hyun Nam

    发明人： Dong Gyu Hyun ,  Jong Beom Ra ,  Duhgoon Lee ,  Woo Hyun Nam

    IPC分类号： A61B8/14 ,  G06K9/00

    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。