RF coil and magnetic resonance imaging apparatus
    1.
    发明申请
    RF coil and magnetic resonance imaging apparatus 失效
    RF线圈和磁共振成像装置

    公开(公告)号:US20030197508A1

    公开(公告)日:2003-10-23

    申请号:US10414625

    申请日:2003-04-16

    IPC分类号: G01V003/00

    摘要: For the purpose of enabling proper imaging of the prostate, a first saddle coil 210 having two loop portions of a geometry suited for sandwiching the lower abdomen of a human body from the anterior and posterior sides with the two loop portions facing each other, and a second saddle coil 310 having two loop portions of a geometry suited for allowing the lower limbs of the human body to be inserted into the two loop portions, and sandwiching the lower abdomen from the right and left sides with the two loop portions facing each other, are quadrature-arranged so that the phases of magnetic resonance received signals are different by 90null, thus achieving imaging of the lower abdomen of the human body with a high S/N.

    摘要翻译: 为了能够对前列腺进行适当的成像,第一鞍形线圈210具有两个适于从前侧和后侧夹住人体的下腹部的两个环形部分,两个环部分彼此面对, 第二鞍形线圈310具有适于允许人体的下肢插入两个环部分中的几何形状的两个环部分,并且使两个环形部分彼此面对的左右两侧的下腹部夹持着, 正交排列,使得磁共振接收信号的相位相差90°,从而以高S / N实现人体下腹部的成像。

    Transmitted X-ray data acquisition system and X-ray computed tomography system
    2.
    发明申请
    Transmitted X-ray data acquisition system and X-ray computed tomography system 有权
    透射X射线数据采集系统和X射线计算机断层摄影系统

    公开(公告)号:US20030185343A1

    公开(公告)日:2003-10-02

    申请号:US10397026

    申请日:2003-03-25

    发明人: Tetsuya Horiuchi

    IPC分类号: H05G001/44

    摘要: An object of the present invention is to acquire transmitted X-ray data by irradiating X-rays of appropriate doses determined for the portions of a section containing the major axis and the portions thereof containing the minor axis respectively. An X-ray irradiating/detecting device consists mainly of an X-ray irradiator that includes an X-ray tube and irradiates a fan-shaped X-ray beam, and an X-ray detector that has a plurality of X-ray detecting elements arrayed in a direction in which the fan-shaped X-ray beam spreads and that is opposed to the X-ray irradiator with an object of imaging between them. The X-ray irradiating/detecting device is rotated about the object in order to acquire transmission X-ray data stemming from a plurality of views. At this time, the dose of the X-ray beam is differentiated between predetermined angular ranges of a section of the object shaped like an oval, which extend with the minor axis of the oval section as a centerline, and the other angular ranges.

    摘要翻译: 本发明的目的是通过分别对包含长轴的部分的部分及其包含短轴的部分分别确定的适当剂量的X射线来获取透射的X射线数据。 X射线照射/检测装置主要由包括X射线管并照射扇形X射线束的X射线照射器和具有多个X射线检测元件的X射线检测器 排列在扇形X射线光束扩散的方向上,并且与X射线照射器相对的成像对象。 X射线照射/检测装置围绕物体旋转,以获得源于多个视图的透射X射线数据。 此时,X射线束的剂量在与椭圆形的短轴作为中心线延伸的椭圆形状的部分的预定角度范围和其它角度范围之间有所区别。

    Backprojection method and X-ray CT apparatus
    3.
    发明申请
    Backprojection method and X-ray CT apparatus 失效
    反投影法和X射线CT装置

    公开(公告)号:US20030161433A1

    公开(公告)日:2003-08-28

    申请号:US10370651

    申请日:2003-02-20

    IPC分类号: G21K001/12

    摘要: For the purpose of providing a backprojection method and an X-ray CT apparatus by which backprojection processing can be simplified and sped up, instead of obtaining backprojection pixel data D2(x, y) directly from projection data D0(view, ch), axially projected data D1(view, pt) are obtained from projection data D0(view, ch) by projecting them onto a straight line, and then backprojection pixel data D2 are obtained from the axially projected data D1.

    摘要翻译: 为了提供反投影方法和可以简化和加快反投影处理的X射线CT装置的目的,而不是直接从投影数据D0(视图,ch)直接获得反投影像素数据D2(x,y),轴向 从投影数据D0(view,ch)通过投影到直线上获得投影数据D1(视图,pt),然后从轴向投影数据D1获得反投影像素数据D2。

    Ultrasonic diagnostic apparatus
    4.
    发明申请
    Ultrasonic diagnostic apparatus 失效
    超声波诊断仪

    公开(公告)号:US20030105400A1

    公开(公告)日:2003-06-05

    申请号:US10300340

    申请日:2002-11-20

    IPC分类号: A61B008/00

    摘要: For the purpose of providing an ultrasonic diagnostic apparatus for improving ease of operation by effectively utilizing two display devices, at least two display modes are defined. In the first display mode, arithmetic control/signal processing means 11 controls video signal processing means 18 to display an ultrasonic diagnostic image based on ultrasonic reflection signals stored in an image memory 16 on a CRT device 30 as a monitor display device, and controls video signal processing means 17 to display operation-indicating items for the operation relating to ultrasonic diagnosis on an LCD device 40, and conducts task processing for ultrasonic diagnosis in response to an operation detected by position detecting means in a touch panel 42. In the second display mode, the arithmetic control/signal processing means 11 controls the video signal processing means 18 to display operation-indicating items for the operation relating to ultrasonic diagnosis on the CRT device 30, and controls the video signal processing means 17 to display an ultrasonic diagnostic image based on ultrasonic reflection signals stored in the image memory 16 on the LCD device 40, and conducts processing in response to a position detection signal detected by the position detecting means in the touch panel 42, for example, conducts zoom processing.

    摘要翻译: 为了通过有效地利用两个显示装置提供用于提高操作容易度的超声波诊断装置,限定了至少两种显示模式。 在第一显示模式中,算术控制/信号处理装置11控制视频信号处理装置18,以存储在CRT装置30上的图像存储器16中的超声波反射信号作为监视显示装置显示超声波诊断图像,并且控制视频 信号处理装置17,用于在LCD装置40上显示与超声波诊断有关的操作的操作指示项目,并且响应于在触摸面板42中由位置检测装置检测到的操作进行超声诊断的任务处理。在第二显示器 模式下,算术控制/信号处理装置11控制视频信号处理装置18在CRT装置30上显示与超声波诊断有关的操作的操作指示项目,并且控制视频信号处理装置17显示超声诊断图像 基于存储在LCD装置40上的图像存储器16中的超声波反射信号,并进行导通 例如,响应于由触摸面板42中的位置检测装置检测到的位置检测信号进行处理,进行变焦处理。

    MR imaging method and apparatus
    5.
    发明授权
    MR imaging method and apparatus 有权
    MR成像方法和装置

    公开(公告)号:US6154029A

    公开(公告)日:2000-11-28

    申请号:US286642

    申请日:1999-04-02

    摘要: In order to reduce ghosts due to increasing echo intensity fall-off in the course of an echo train in MR imaging employing the FSE method, the present method assigns individual echoes in the echo train to respective segments to acquire data F(S1-S3), then assigns individual echoes arranged in the reverse order to the respective segments so that the order of signal intensity magnitude in the data F is inverted, to acquire data R(S4-S5), adds the data F and R for each view, and produces an image from the sum data. The number of echoes in the echo train is preferably selected to be an even number.

    摘要翻译: 为了减少在使用FSE方法的MR成像中的回波串训练过程中增加的回波强度下降的鬼影,本方法将回波序列中的各个回波分配给各个段,以获得数据F(S1-S3) ,然后将以相反顺序排列的各个回波分配给相应的段,使得数据F中的信号强度幅度的顺序被反转,以获取数据R(S4-S5),为每个视图添加数据F和R,以及 从和数据生成图像。 回波串中的回波数优选地选择为偶数。

    CT imaging method and X-ray CT apparatus
    6.
    发明授权
    CT imaging method and X-ray CT apparatus 有权
    CT成像方法和X射线CT装置

    公开(公告)号:US6061421A

    公开(公告)日:2000-05-09

    申请号:US141999

    申请日:1998-08-28

    申请人: Akira Hagiwara

    发明人: Akira Hagiwara

    摘要: In an X-ray CT imaging apparatus which is designed to produce a CT image in a short time, a master processor (MP) converts fan-view image data produced by multiple X-ray sensors into para-view image data, and thereafter distributes the resulting data to slave processors (SP1 through SP4), which are also supplied with modification data (B1 through B4). The slave processors (SP1 through SP4) implement the first pre-processing, second pre-processing, FBP process and post processing continuously, thereby producing BP data (I1 through I4). The master processor (MP) collects and composes the BP data (I1 through I4) to produce a CT image.

    摘要翻译: 在被设计为在短时间内产生CT图像的X射线CT成像装置中,主处理器(MP)将由多个X射线传感器产生的扇形图像数据转换为对准图像数据,然后分配 将结果数据提供给从属处理器(SP1至SP4),还提供修改数据(B1至B4)。 从处理器(SP1至SP4)连续执行第一预处理,第二预处理,FBP处理和后处理,从而产生BP数据(I1至I4)。 主处理器(MP)收集并组成BP数据(I1到I4)以产生CT图像。

    Ultrasonic diagnostic apparatus, cursor display method and measuring
apparatus
    7.
    发明授权
    Ultrasonic diagnostic apparatus, cursor display method and measuring apparatus 有权
    超声波诊断装置,光标显示方法及测量装置

    公开(公告)号:US6019723A

    公开(公告)日:2000-02-01

    申请号:US169301

    申请日:1998-10-08

    申请人: Koichi Yamaura

    发明人: Koichi Yamaura

    IPC分类号: A61B8/00 A61B5/107 A61B8/08

    摘要: In order to decrease the amount of operation required for an operator to move a cursor and in order to allow the operator to distinctly view deviation of CRL (Crown Rump Length) of a fetus from a normal value, when an ultrasonic image of a fetus F is displayed and a first cursor C1 is positioned at the head (or the rump) of the fetus F, a second cursor C2 is initially displayed at a position which corresponds to a normal CRL obtained from GA (Gestation Age) estimated from the last menstruation date. When the second cursor C2 is moved and positioned at the rump (or the head) of the fetus F, the measured CRL and GA estimated therefrom are displayed.

    摘要翻译: 为了减少操作者移动光标所需的操作量,并且为了允许操作者清楚地看到胎儿的CRL(冠冕长度)与正常值的偏差,当胎儿F的超声图像 并且第一光标C1位于胎儿F的头部(或臀部)处,第二光标C2最初显示在与从上次月经估计的GA(Gestation Age)获得的正常CRL相对应的位置处 日期。 当第二光标C2移动并定位在胎儿F的臀部(或头部)时,显示从其估计的测量的CRL和GA。

    Table
    8.
    发明授权
    Table 失效

    公开(公告)号:US5926869A

    公开(公告)日:1999-07-27

    申请号:US963229

    申请日:1997-11-03

    CPC分类号: A61B6/04

    摘要: In order to improve the operational efficiency and mitigate the burden for a subject, there is provided a table comprising a table body 41 which can be moved upwardly and downwardly, and a cradle 42 disposed over the table body 41 and having a cradle body portion 42c on which the subject 30 is to be mounted and an extending portion (first extending portion) 42a projecting laterally from at least one lateral portion of the cradle body portion 42c and extending to the vicinity of a mat 32 on a carrying means (stretcher) 25 alongside, the extending portion 42a being for use in shifting the subject 30 on the carrying means 25 to the cradle body portion 42c.

    摘要翻译: 为了提高操作效率并减轻对象的负担,提供了一种桌子,其包括可以向上和向下移动的桌子主体41和设置在桌子主体41上并具有支架主体部分42c的支架42 主体30将被安装在其上的延伸部分(第一延伸部分)42a和从支架主体部分42c的至少一个侧面部分侧向延伸并延伸到传送装置(担架)25上的垫子32附近的延伸部分 另外,延伸部分42a用于将携带装置25上的被摄体30移动到支架主体部分42c。

    Neck fixing apparatus
    9.
    发明授权
    Neck fixing apparatus 失效
    颈部定影装置

    公开(公告)号:US5916189A

    公开(公告)日:1999-06-29

    申请号:US994909

    申请日:1997-12-19

    CPC分类号: A61F5/05883

    摘要: For the purpose of supporting the subject's head corresponding to the motion of the subject's neck, there is provided a neck fixing apparatus comprising a base disposed on a surface on which the subject is mounted, an arm extending along the body axis of the subject to be mounted and pivotally attached to the base, and a head rest 82 for mounting the subject's head, movably attached to the arm and movable along the arm 60.

    摘要翻译: 为了支撑与被检者的颈部的运动相对应的被检者的头部,提供了一种颈部固定装置,其包括设置在被检体的表面上的基部,沿主体的身体轴线延伸的臂 安装并枢转地附接到基座,以及头枕82,用于安装被检测者的头部,可移动地附接到臂并可沿着臂60移动。