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    • 2. 发明专利
    • X-ray diagnostic apparatus, image processing apparatus and program
    • X射线诊断设备,图像处理设备和程序
    • JP2007215925A
    • 2007-08-30
    • JP2006042665
    • 2006-02-20
    • Takeshi NakauraToshiba Medical Systems Corp猛 中浦東芝メディカルシステムズ株式会社
    • NAKAURA TAKESHIOISHI SATORU
    • A61B6/00G06T1/00G06T5/50
    • A61B6/504A61B5/7289A61B6/5264A61B6/541A61B8/00A61B8/5276G06T5/50G06T7/0016G06T7/20G06T2207/10116G06T2207/20224G06T2207/30101H04N5/3205
    • PROBLEM TO BE SOLVED: To reduce a displacement artifact caused by a physical movement of an examinee when performing a subtraction processing between images before and after injection by injecting a contrast medium into the examinee. SOLUTION: The X-ray diagnostic apparatus is equipped with an image generating part 2 which generates a plurality of X-ray images by photographing the examinee repeatedly before and after injection of contrast medium into the examinee, a region identification part 20 which identifies a non-contrast image region from a plurality of mask images before the injection of contrast medium constituting a plurality of X-ray images and a plurality of contrast image after injection, a mask selection part 19 for selecting a mask image for each contrast image based on a correlation between the contrast image and the mask image in non contrast region, and a subtraction processing part 21 for generating a subtraction image by subtracting a contrast image and a selected mask image. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了减少由被检体在通过向造影剂注射造影剂进行注射前后的图像之间进行减法处理时由被检体的物理运动引起的位移伪像。 解决方案:X射线诊断装置配备有图像生成部分2,其通过在造影剂注入到受检者之前和之后反复拍摄受检者来产生多个X射线图像,区域识别部分20 在注入构成多个X射线图像的造影剂和注射后的多个对比度图像之前,从多个掩模图像中识别非对比度图像区域,用于为每个对比图像选择掩模图像的掩模选择部分19 基于对比度区域中的对比度图像和掩模图像之间的相关性,以及减法处理部分21,用于通过减去对比度图像和所选择的掩模图像来产生减法图像。 版权所有(C)2007,JPO&INPIT
    • 6. 发明专利
    • X-ray diagnostic apparatus
    • X射线诊断装置
    • JP2013128825A
    • 2013-07-04
    • JP2013076319
    • 2013-04-01
    • Toshiba Corp株式会社東芝Toshiba Medical Systems Corp東芝メディカルシステムズ株式会社
    • SAKAGUCHI TAKUYAOISHI SATORU
    • A61B6/03A61B6/00
    • PROBLEM TO BE SOLVED: To generate good volume data by continuously generating projection data at a prescribed heartbeat time phase toward the rotating direction of an imaging system and reconstructing the acquired projection data.SOLUTION: The imaging system including an X-ray generating part 1 and an X-ray detecting part 2 is rotated about a subject 150 a plurality of times, and the projection data is generated in each rotation at the prescribed heartbeat time phase. An image reconstruction circuit 73 reconstructs the projection data continuously generated in the rotating direction to generate the volume data. In the process, a circuit 31 for setting rotation starting timing controls the rotating position of the imaging system at the prescribed heartbeat time phase by setting the starting timing of each rotation based on an ECG signal obtained from an ECG unit 10.
    • 要解决的问题:通过在成像系统的旋转方向上以规定的心跳时间相位连续生成投影数据,并且重建获取的投影数据,来生成良好的体积数据。解决方案:成像系统包括X射线产生部分1和 X射线检测部2围绕被检体150多次旋转,并且在规定的心跳时间相位的每个旋转中产生投影数据。 图像重建电路73重建沿旋转方向连续生成的投影数据,以生成体积数据。 在该过程中,用于设定旋转开始定时的电路31基于从ECG单元10获得的ECG信号设定每次旋转的开始时刻,来控制成像系统在规定的心跳时间相位的旋转位置。
    • 8. 发明专利
    • Three-dimensional image processor, three-dimensional image processing method, storage medium, and program
    • 三维图像处理器,三维图像处理方法,存储介质和程序
    • JP2012050844A
    • 2012-03-15
    • JP2011233390
    • 2011-10-24
    • Toshiba CorpToshiba Medical Systems Corp東芝メディカルシステムズ株式会社株式会社東芝
    • OISHI SATORU
    • A61B6/03A61B5/055A61B6/00G01T1/161
    • PROBLEM TO BE SOLVED: To reduce the workload and improve accuracy in alignment for image connection, and to connect images in a wide range.SOLUTION: A three-dimensional image processor comprises: a memory part 12 that stores data on a first three-dimensional image, data on a second three-dimensional image to be connected to the first three-dimensional image, data on a third three-dimensional image relevant to the first three-dimensional image, and data on a fourth three-dimensional image relevant to the second three-dimensional image; a displacement calculation part 18 to calculate displacement between the third three-dimensional image and the fourth three-dimensional image; and an image connection part 19 to align the second three-dimensional image with the first three-dimensional image to connect them based on the calculated displacement.
    • 要解决的问题:减少工作量,提高图像连接对齐的精度,并连接广泛的图像。 解决方案:三维图像处理器包括:存储部分12,其存储关于第一三维图像的数据,要连接到第一三维图像的第二三维图像上的数据,关于第一三维图像的数据 与第一三维图像相关的第三三维图像和与第二三维图像相关的第四三维图像的数据; 位移计算部18,用于计算第三三维图像与第四三维图像之间的位移; 以及图像连接部19,用于将第二三维图像与第一三维图像对准,以基于计算的位移来连接它们。 版权所有(C)2012,JPO&INPIT
    • 9. 发明专利
    • X-ray diagnostic apparatus
    • X射线诊断装置
    • JP2012030089A
    • 2012-02-16
    • JP2011209996
    • 2011-09-26
    • Toshiba CorpToshiba Medical Systems Corp東芝メディカルシステムズ株式会社株式会社東芝
    • SAKAGUCHI TAKUYAOISHI SATORU
    • A61B6/03
    • PROBLEM TO BE SOLVED: To generate good volume data by consecutively generating projection data at a prescribed heartbeat time phase toward the turning direction of an imaging system and reconfiguring the obtained projection data.SOLUTION: The imaging system including an X-ray generating part 1 and an X-ray detecting part 2 is turned around a subject 150 several times, and the projection data are generated in each turn at the prescribed heartbeat phase. An image reconfiguration circuit 73 reconfigures the projection data, which are continuously generated in the turning direction, to form the volume data. In this process, a circuit 31 for setting turn starting timing controls the turning position of the imaging system at the prescribed heart beat phase by setting the starting timing of each turn based on an ECG signal obtained from an ECG unit 10.
    • 要解决的问题:通过在成像系统的转向方向上以规定的心跳时间相位连续生成投影数据并重构所获得的投影数据来生成良好的体积数据。 解决方案:包括X射线产生部分1和X射线检测部分2的成像系统围绕被检体150转动几次,并且在规定的心跳期间每转一次地生成投影数据。 图像重构电路73重新配置在转动方向上连续生成的投影数据,以形成体数据。 在该过程中,用于设定转动开始时刻的电路31基于从ECG单元10获得的ECG信号,通过设定每个转弯的开始定时来控制成像系统在规定的心跳相位的转动位置。 (C)2012,JPO&INPIT
    • 10. 发明专利
    • X-ray diagnostic apparatus
    • X射线诊断装置
    • JP2011104353A
    • 2011-06-02
    • JP2010198077
    • 2010-09-03
    • Toshiba CorpToshiba Medical Systems Corp東芝メディカルシステムズ株式会社株式会社東芝
    • UEHARA HISAYUKIHASHIMOTO REIKOHAYASHI YOSHIYASUMATSUMOTO KUNITOSHIOISHI SATORU
    • A61B6/00
    • A61B6/4452A61B6/035A61B6/4021A61B6/4233A61B6/4266A61B6/4429
    • PROBLEM TO BE SOLVED: To provide an X-ray diagnostic apparatus which realizes the improvement of inspection efficiency and inspection accuracy.
      SOLUTION: An X-ray tube 15 has a cathode which emits an electron and an anode which receives the electron emitted from the cathode and generates X rays. FPD (flat panel detector) 171 has a first pixel size. MA (micro-angio detector) 173 has a smaller second pixel size than the first pixel size. A C-arm 13 supports the X-ray tube 15, the FPD 171, and the MA 173 rotatably. Slide mechanism 39 supports the FPD 171 and the MA 173 slidably so that either of the FPD 171 and the MA 173 may be irradiated with X rays. Tilt mechanism 39 supports the X-ray tube 15 tiltably in order to change the size of the effective focal spot of X rays on the anode. A mechanical control part 51 interlocks the slide of the FPD 171 and the MA 173 by the tilt mechanism 39 with the tilt of the X-ray tube 15 by the slide mechanism 39 and controls them.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 解决的问题:提供一种能够提高检查效率和检查精度的X射线诊断装置。 解决方案:X射线管15具有发射电子的阴极和接收从阴极发射的电子并产生X射线的阳极。 FPD(平板检测器)171具有第一像素尺寸。 MA(微血管检测器)173具有比第一像素尺寸小的第二像素尺寸。 C形臂13可旋转地支撑X射线管15,FPD 171和MA 173。 滑动机构39可滑动地支撑FPD 171和MA 173,使得FPD 171和MA 173中的任一个可以用X射线照射。 倾斜机构39可倾斜地支撑X射线管15,以便改变阳极上的X射线的有效焦斑的尺寸。 机械控制部51通过滑动机构39与X射线管15的倾斜而通过倾斜机构39使FPD 171和MA 173的滑块联动并进行控制。 版权所有(C)2011,JPO&INPIT