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Patent Agency Ranking11.发明授权자기 공명 영상 생성 방법, 그에 따른 위상 대조 영상의 위상 정보 획득 방법, 그에 따른 자화율 강조 영상의 위상 정보 획득 방법 및 그에 따른 자기 공명 영상 생성 장치 有权用于生成相位对比图像相位信息的磁共振图像方法，用于获取其可靠性加权图像及其磁共振成像装置的相位信息的方法
公开(公告)号：KR101579110B1
公开(公告)日：2015-12-22
申请号：KR1020130111181
申请日：2013-09-16
IPC: A61B5/055
CPC classification number: G01R33/5611 , A61B5/055 , G01R33/5608 , G01R33/56536
Abstract: 복수개의채널코일들을포함하는고주파멀티코일을이용하여자기공명영상을이미징하는자기공명영상생성방법및 장치를개시한다. 본발명의일 실시예에따른자기공명영상생성방법은복수개의채널코일들에대응되는복수개의 K 공간완성데이터들을생성하고, 복수개의 K 공간완성데이터들각각을주파수도메인에서변환하여복수개의이미지데이터들을생성하는단계, 복수개의이미지데이터들을조합하여자기공명영상을획득하는단계, 및복수개의이미지데이터들각각에서획득된복수개의채널별 위상정보인제1 위상정보및 복수개의 K 공간완성데이터들각각에서획득된복수개의채널별 위상정보인제2 위상정보중 적어도하나에근거하여, 자기공명영상의위상정보를획득하는단계를포함한다.
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公开(公告)号：KR101475685B1
公开(公告)日：2014-12-23
申请号：KR1020130033671
申请日：2013-03-28
IPC: A61B5/055
Abstract: MRI 장치에서대상체의자화율강조영상을생성하는방법에있어서, 대상체로부터수신되는 RF 신호를이용하여 RF 신호에대응하는적어도하나의제 1 복소수데이터를획득하는단계; 적어도하나의제 1 복소수데이터에소정필터를적용하여적어도하나의제 2 복소수데이터를획득하는단계; 적어도하나의제 2 복소수데이터를이용하여자화율강조마스크를생성하는단계; 및자화율강조마스크를대상체의 MRI 영상에적용하여자화율강조영상을생성하는단계를포함하는것을특징으로하는본 발명의일 실시예에따른자화율강조영상생성방법이개시된다.
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公开(公告)号：KR101343029B1
公开(公告)日：2013-12-18
申请号：KR1020110116116
申请日：2011-11-08
CPC classification number: G01R33/56527 , G01R33/4828 , G01R33/5607
Abstract: 본발명에따른자기공명영상장치및 그제어방법은 off-resonance 성분에의한오차를보완한자기공명영상을멀티슬라이스에대해얻을수 있으며, 각각의자기공명영상사이의겹침현상발생을방지하는자기공명영상장치및 그제어방법을제공한다. 이를위해본 발명의일 측면에따른자기공명영상장치는자석어셈블리내부에정자장(static magnetic field)을형성하는정자장코일부; 상기정자장에구배(gradient)를형성하는구배코일부; 서로다른위치의 n개(n≥2)의슬라이스에존재하는원자핵을여기시키기위해제 1 RF(Radio Frequency) 펄스및 제 2 RF 펄스를인가하는 RF 코일부; 및제 1 슬라이스에대해중심주파수를 f로하는제 1 RF 펄스및 제 2 RF 펄스를인가하고, 제 2 슬라이스에대해중심주파수를 f+f으로하는제 1 RF 펄스및 중심주파수를 f-f으로하는제 2 RF 펄스를인가하도록상기 RF 코일부를제어하는제어부를포함한다.
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公开(公告)号：KR1020130050846A
公开(公告)日：2013-05-16
申请号：KR1020110116116
申请日：2011-11-08
CPC classification number: G01R33/56527 , G01R33/4828 , G01R33/5607
Abstract: PURPOSE: Magnetic resonance imaging equipment and a control method thereof are provided to obtain magnetic resonance images, where errors by off-resonance components are corrected, for multiple slices and to prevent overlapping between individual magnetic resonance images. CONSTITUTION: Magnetic resonance imaging equipment is composed of a magnet assembly(150) forming a magnetic field and generating a resonance for an atomic nucleus, a control part(120) controlling operation, a data collection part(160) receiving data about magnetic resonance signals, and a data processing part(180) generating magnetic resonance images by using the received data. The magnet assembly includes a magnetostatic coil part(151) forming a magnetostatic field at the inside, a gradient coil part(152) forming a gradient in the magnetostatic field, and an RF(Radio Frequency) coil part(153) exciting the atomic nucleus and receiving a magnetic resonance signal from the atomic nucleus; and a pulse sequence control part(122) controls RF signals applied to the gradient and atomic nucleus by controlling the gradient coil part and RF coil part. [Reference numerals] (110) User operation part; (121) Magnetostatic control part; (122) Pulse sequence control part; (130) Gradient applying part; (140) RF applying part; (151) Magnetostatic coil part; (152) Gradient coil part; (153) RF coil part; (160) Data collection part; (170) Data storage part; (180) Data processing part; (190) Display part
Abstract translation: 目的：提供磁共振成像设备及其控制方法，以获得磁共振图像，其中对于多个切片来校正偏共振成分的误差，并防止各个磁共振图像之间的重叠。 构成：磁共振成像设备由形成磁场并产生原子核谐振的磁体组件（150），控制部分（120）控制操作，数据收集部分（160）接收关于磁共振信号的数据 ，以及通过使用接收到的数据产生磁共振图像的数据处理部（180）。 磁体组件包括在内部形成静磁场的静磁线圈部分（151），形成静磁场梯度的梯度线圈部分（152）和激发原子核的RF（射频）线圈部分（153） 并从原子核接收磁共振信号; 并且脉冲序列控制部分（122）通过控制梯度线圈部分和RF线圈部分来控制施加到梯度和原子核的RF信号。 （附图标记）（110）用户操作部; （121）静电控制部件; （122）脉冲序列控制部分; （130）梯度施加部; （140）RF施加部; （151）磁静电线圈部分; （152）梯度线圈部分; （153）射频线圈部分; （160）资料收集部分; （170）数据存储部分; （180）数据处理部分; （190）显示部分
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公开(公告)号：KR100763808B1
公开(公告)日：2007-10-05
申请号：KR1020060077626
申请日：2006-08-17
Applicant: 한국과학기술원
Abstract: A method and an apparatus of creating a magnetic resonance image, and a computer readable recording medium are provided to improve the speed of generating the magnetic resonance image and the resolution of the magnetic resonance image. A method of creating a magnetic resonance image includes the steps of: inverse-radon-transforming a first sinogram for an object, and generating a first image(120); radon-transforming the first image, and generating a second sinogram(130); replacing first projection data, under a threshold value which reflects the average brightness of projection data of the first sinogram, with second projection data corresponding to the second sinogram, and generating a third sinogram(140); and inverse-radon-transforming the third sinogram, and generating a second image(150).
Abstract translation: 提供了一种创建磁共振图像的方法和装置，以及计算机可读记录介质，以提高磁共振图像的产生速度和磁共振图像的分辨率。 一种产生磁共振图像的方法包括以下步骤：对物体进行第一正弦图的逆氡变换，并产生第一图像（120）; 氡变换第一图像，并产生第二正弦图（130）; 在第二投影数据对应于第二正弦图的第二投影数据的反映第一正弦图的投影数据的平均亮度的阈值之下，替换第一投影数据，并产生第三正弦图（140）。 并对第三正弦图进行逆氡变换，并产生第二图像（150）。
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