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1. 发明授权

KR101425530B1 X-선 단층 촬영을 이용한 물질 분별 알고리즘 교정 장치 有权
标题翻译：使用X射线计算机图像矫正对象分类标准的装置
公开(公告)号：KR101425530B1
公开(公告)日：2014-08-05
申请号：KR1020130087434
申请日：2013-07-24
申请人： 한국과학기술원
发明人： 조승룡 , 이지석 , 이윤정 , 이병철
IPC分类号： G01N23/04 , A61B6/00
CPC分类号： G01N23/04 , G01N2223/1016 , G06T11/008 , G06T2207/10116
摘要： The present invention relates to an apparatus for correcting a substance classification algorithm using X-ray computed tomography which can correct coefficients for use in the substance classification algorithm by obtaining an transmission image for an angle of a target object for correction by use of X-ray multiple energy, and reconstructing the computed tomography through the obtained transmission image. The apparatus according to the present invention includes an X-ray generator for irradiating the X-ray of at least two different multiple energies; a plurality of target objects for correction installed at a position spaced apart from the X-ray generator at a given distance and irradiated with the X-ray emitted from the X-ray generator; a rotating member for rotating the target object for correction at a constant speed; a linear array detector installed at a side opposite to the X-ray generator with respect to the target object for correction and sequentially obtaining the transmission image of the target objects for correction for every energy; and a correction unit for extracting the transmission image for every angle from the transmission image obtained by the linear array detector and reconstructing the computed tomography from the transmission image for every angle to correct the coefficient of the substance classification algorithm based on the computed tomography.
摘要翻译：本发明涉及一种使用X射线计算机断层摄影术来校正物质分类算法的装置，其可以通过使用X射线获得用于校正目标物体的角度的透射图像，从而校正物质分类算法中使用的系数多次能量，并通过获得的透射图像重建计算机断层摄影。根据本发明的装置包括用于照射至少两种不同多种能量的X射线的X射线发生器; 用于校正的多个目标物体安装在与所述X射线发生器间隔开给定距离并且被从所述X射线发生器发射的X射线照射的位置上; 旋转构件，用于以恒定速度旋转目标物体以进行校正; 线性阵列检测器，安装在相对于目标对象的X射线发生器的相对侧，用于校正，并且顺序地获得目标对象的透射图像以便每一种能量进行校正; 以及校正单元，用于从由线性阵列检测器获得的透射图像中提取针对每个角度的透射图像，并且对于每个角度从透射图像重建计算机断层摄影，以基于计算机断层摄影来校正物质分类算法的系数。

2. 发明公开

KR1020140018467A 다중 팬빔 나선형 ＣＴ 시스템 및 이를 이용한 엑스선 단층촬영방법 有权
标题翻译：多风扇光束计算机图像系统及其计算机图像方法
公开(公告)号：KR1020140018467A
公开(公告)日：2014-02-13
申请号：KR1020120083109
申请日：2012-07-30
申请人： 한국과학기술원
发明人： 조승룡 , 이윤정 , 이태원 , 이지석 , 박미란
IPC分类号： A61B6/03 , A61B6/08
摘要： The present invention relates to a helical computed tomography system and a method. According to the present invention, provided are a multiple fan-beam helical computed tomography system and a computed tomography method using the same. X-ray sources face each other and locate around an object. An X-ray detector rotates around the object in order to scan the object. An X-ray beam passes through a collimator having a beam blocking slit which is vertical to a rotation shaft in order to obtain a projection image. The projection image obtained by using a compress-sensing based repetition type algorithm is reconstructed. The multiple fan-beam helical computed tomography system and the computed tomography method using the same can reduce the amount of exposed radiation for patients and medical teams caused during CT scanning compared with an existing CT apparatus.
摘要翻译：螺旋计算机断层摄影系统和方法技术领域本发明涉及一种螺旋计算机断层摄影系统及方法。根据本发明，提供了多扇叶光束螺旋计算机断层摄影系统和使用其的计算机断层摄影方法。 X射线源彼此面对并围绕物体定位。 X射线检测器围绕物体旋转以扫描物体。 X射线束通过具有垂直于旋转轴的光束阻挡狭缝的准直仪，以获得投影图像。通过使用基于压缩感测的重复类型算法获得的投影图像被重建。与现有CT装置相比，多扇叶光束螺旋计算机断层摄影系统和使用其的计算机断层摄影方法可以减少CT扫描期间患者和医疗队的暴露辐射量。

3. 发明授权

KR101379316B1 다중 팬빔 나선형 ＣＴ 시스템 및 이를 이용한 엑스선 단층촬영방법 有权
标题翻译：多扇叶光束螺旋计算机断层摄影系统及其计算机断层摄影方法
公开(公告)号：KR101379316B1
公开(公告)日：2014-04-02
申请号：KR1020120083109
申请日：2012-07-30
申请人： 한국과학기술원
发明人： 조승룡 , 이윤정 , 이태원 , 이지석 , 박미란
IPC分类号： A61B6/03 , A61B6/08
摘要： 본 발명은 나선형 엑스선 단층촬영 시스템 및 방법에 관한 것으로, 본 발명에 따르면, 피검체를 중심으로 서로 대향하여 위치되는 엑스선 발생원과 엑스선 검출기가 피검체 주위를 나선형으로 회전하면서 피검체를 스캔하고, 회전축과 수직을 이루는 빔 차단 슬릿을 가지는 콜리메이터에 엑스선을 통과시킴으로써 투과 영상을 획득하며, 압축 센싱 기반의 반복형 알고리즘을 사용하여 얻어진 투과 영상을 재구성하도록 구성됨으로써, 종래의 CT 장치에 비해 CT 촬영시 발생하는 환자 및 의료진에 대한 피폭 선량을 감소시킬 수 있는 다중 팬빔 나선형 CT 시스템 및 이르 f이용한 엑스선 단층촬영방법이 제공된다.

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