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    X ray computed tomography apparatus and scan start timing determination method
    1.
    发明授权
    X ray computed tomography apparatus and scan start timing determination method 有权

    公开(公告)号：US10327728B2

    公开(公告)日：2019-06-25

    申请号：US14949119

    申请日：2015-11-23

    申请人： Toshiba Medical Systems Corporation

    发明人： Takahiro Yoda ,  Katsuhiko Ishida ,  Masakazu Matsuura

    IPC分类号： A61B6/03 ,  A61B6/00

    摘要： According to one embodiment, an X-ray computed tomography apparatus includes an X-ray tube, an X-ray detector, a projection data generation circuitry, a setting circuitry, and a scan start timing determination circuitry. The setting circuitry configured to set a region of interest on a slice image generated by a first scan for the object. The scan start timing determination circuitry configured to determine, based on a plurality of projection data values of interest corresponding to the region of interest out of the projection data values generated by a second scan at a dose lower than that in the first scan, a timing of terminating the second scan and starting a third scan at a dose higher than that in the second scan.

    X-RAY CT SYSTEM, IMAGE DISPLAY DEVICE, AND IMAGE DISPLAY METHOD
    2.
    发明申请
    X-RAY CT SYSTEM, IMAGE DISPLAY DEVICE, AND IMAGE DISPLAY METHOD 审中-公开
    X射线CT系统，图像显示装置和图像显示方法

    公开(公告)号：US20140093030A1

    公开(公告)日：2014-04-03

    申请号：US14119079

    申请日：2013-01-21

    申请人： Toshiba Medical Systems Corporation ,  Kabushiki Kaisha Toshiba

    发明人： Go Mukumoto ,  Katsuhito Morino ,  Atsushi Fukano ,  Takahiro Yoda ,  Masakazu Matsuura

    IPC分类号： A61B6/03

    CPC分类号： A61B6/03 ,  A61B6/032 ,  A61B6/486 ,  A61B6/503 ,  A61B6/5205 ,  A61B6/5264 ,  A61B8/12 ,  A61B8/5207 ,  A61B2505/00

    摘要： Techniques are provided that enable displaying of medical images that depict cyclic motions in the subject. An X-ray CT system scans, with X-rays, the subject whose targeted region is experiencing a cyclic motion and acquires detection data. This X-ray CT system comprises a reconstruction processor, a moving image creator, and a display controller. The reconstruction processor generates a plurality of sets of volumetric data based on a plurality of sets of detection data that have been acquired during one cycle of the cyclic motion. The moving-image creator creates a moving image that shows the cyclic motion, on the basis of at least a part of the plural sets of volumetric data. The display controller superposes the moving image over an image based on the volumetric data and displays these images on the display unit.

    摘要翻译： 提供了能够显示描绘受试者中的循环运动的医学图像的技术。 X射线CT系统用X射线扫描目标区域正在经历循环运动的被摄体，并获取检测数据。 该X射线CT系统包括重建处理器，运动图像创建器和显示控制器。 重建处理器基于在循环运动的一个周期期间已经获取的多组检测数据来生成多组体积数据。 运动图像创建器基于多组体积数据的至少一部分，创建显示循环运动的运动图像。 显示控制器基于体积数据将运动图像叠加在图像上，并将这些图像显示在显示单元上。

    X-ray CT system, image display device, and image display method
    3.
    发明授权
    X-ray CT system, image display device, and image display method 有权

    公开(公告)号：US10537293B2

    公开(公告)日：2020-01-21

    申请号：US14119079

    申请日：2013-01-21

    申请人： Toshiba Medical Systems Corporation

    发明人： Go Mukumoto ,  Katsuhito Morino ,  Atsushi Fukano ,  Takahiro Yoda ,  Masakazu Matsuura

    IPC分类号： A61B6/03

    摘要： Techniques are provided that enable displaying of medical images that depict cyclic motions in the subject. An X-ray CT system scans, with X-rays, the subject whose targeted region is experiencing a cyclic motion and acquires detection data. This X-ray CT system comprises a reconstruction processor, a moving image creator, and a display controller. The reconstruction processor generates a plurality of sets of volumetric data based on a plurality of sets of detection data that have been acquired during one cycle of the cyclic motion. The moving-image creator creates a moving image that shows the cyclic motion, on the basis of at least a part of the plural sets of volumetric data. The display controller superposes the moving image over an image based on the volumetric data and displays these images on the display unit.

    Medical imaging apparatus
    5.
    发明授权
    Medical imaging apparatus 有权
    医疗成像装置

    公开(公告)号：US09569842B2

    公开(公告)日：2017-02-14

    申请号：US14808861

    申请日：2015-07-24

    申请人： Toshiba Medical Systems Corporation

    发明人： Masakazu Matsuura ,  Katsuhito Morino ,  Tomoyasu Komori ,  Yasunobu Yamada ,  Hisashi Yasuda

    IPC分类号： G06K9/00 ,  G06T7/00 ,  G06T11/00 ,  A61B6/00 ,  A61B6/03 ,  A61B5/05

    CPC分类号： G06T7/0012 ,  A61B6/037 ,  A61B6/469 ,  A61B6/5205 ,  G06T11/003 ,  G06T11/006 ,  G06T2207/10004 ,  G06T2207/10081 ,  G06T2207/10104 ,  G06T2207/10116 ,  G06T2207/20104 ,  G06T2207/30004 ,  G06T2210/41

    摘要： A medical imaging apparatus includes a reconstruction unit, a ROI setting unit, and a controller. The reconstruction unit receives projection data that is based on radiation detected by a detector, divides the projection data into a plurality of subsets, and apply a reconstruction process to the subsets by successive approximation to successively generate images. The ROI setting unit sets a ROI in the images. The controller obtains a variation value indicating a change in image quality from the images, and, when the variation value reaches a predetermined value, instructs the reconstruction unit on a new subset count less than the number of the subsets to sequentially reconstruct subsets as many as the new subset count into an image. The reconstruction unit assigns a weight to the projection data based on the ROI, and divides the projection data into the subsets based on the weight.

    摘要翻译： 医疗成像设备包括重建单元，ROI设置单元和控制器。 重建单元接收基于由检测器检测到的辐射的投影数据，将投影数据划分成多个子集，并通过逐次近似将重建处理应用于子集，以连续生成图像。 ROI设置单元设置图像中的ROI。 控制器从图像中获得指示图像质量变化的变化值，并且当变化值达到预定值时，指示重建单元计算小于子集数量的新子集计数以顺序地重建多个子集 新的子集计入图像。 重建单元基于ROI为投影数据分配权重，并且基于权重将投影数据划分成子集。

    X RAY COMPUTED TOMOGRAPHY APPARATUS AND SCAN START TIMING DETERMINATION METHOD
    6.
    发明申请
    X RAY COMPUTED TOMOGRAPHY APPARATUS AND SCAN START TIMING DETERMINATION METHOD 审中-公开
    X射线计算机图像设备和扫描开始时序确定方法

    公开(公告)号：US20160073997A1

    公开(公告)日：2016-03-17

    申请号：US14949119

    申请日：2015-11-23

    申请人： KABUSHIKI KAISHA TOSHIBA ,  Toshiba Medical Systems Corporation

    发明人： Takahiro YODA ,  Katsuhiko Ishida ,  Masakazu Matsuura

    IPC分类号： A61B6/00 ,  A61B6/03

    CPC分类号： A61B6/542 ,  A61B6/032 ,  A61B6/463 ,  A61B6/469 ,  A61B6/481 ,  A61B6/488 ,  A61B6/5205 ,  A61B6/54 ,  A61B6/56 ,  A61B6/563

    摘要： According to one embodiment, an X-ray computed tomography apparatus includes an X-ray tube, an X-ray detector, a projection data generation circuitry, a setting circuitry, and a scan start timing determination circuitry. The setting circuitry configured to set a region of interest on a slice image generated by a first scan for the object. The scan start timing determination circuitry configured to determine, based on a plurality of projection data values of interest corresponding to the region of interest out of the projection data values generated by a second scan at a dose lower than that in the first scan, a timing of terminating the second scan and starting a third scan at a dose higher than that in the second scan.

    摘要翻译： 根据一个实施例，X射线计算机断层摄影装置包括X射线管，X射线检测器，投影数据生成电路，设置电路和扫描开始定时确定电路。 所述设置电路被配置为在由所述对象的第一扫描生成的切片图像上设置感兴趣区域。 扫描开始定时确定电路，被配置为基于与通过第二扫描生成的投影数据值相对应的感兴趣区域的多个投影数据值以比第一扫描中的剂量低的剂量确定定时 终止第二扫描并以比第二扫描中的剂量更高的剂量开始第三次扫描。