Radiographic detector including trap occupancy change monitor and feedback, imaging apparatus and methods using the same
    1.
    发明公开
    Radiographic detector including trap occupancy change monitor and feedback, imaging apparatus and methods using the same 审中-公开
    的射线照相检测器与更改监视器用于监视分配空位并反馈给成像设备和方法,使

    公开(公告)号:EP2549297A3

    公开(公告)日:2013-02-27

    申请号:EP12004876.4

    申请日:2012-06-29

    IPC分类号: G01T1/20

    摘要: Embodiments of radiographic imaging systems; digital radiography detectors and methods for using the same can monitor and/or control trap occupancy levels in photosensors of radiographic sensors (e.g., DR FPDs). In exemplary radiographic imaging apparatus embodiments, monitoring of trap occupancy or change in trap occupancy of the photosensor can determine whether an imaging array or detector panel has reached a stable operating point. In another embodiment, trap occupancy information can be used (a) to enable a generator (e.g., x-ray source) for a radiographic exposure and/or (b) to adjust to or to maintain a change in trap occupancy level at pre-determined set-point or to adjust to or maintain a change in trap occupancy level within a prescribed range (e.g., using clock signals and bias voltages applied to the photosensor).

    Radiographic detector including trap occupancy change monitor and feedback, imaging apparatus and methods using the same
    2.
    发明公开
    Radiographic detector including trap occupancy change monitor and feedback, imaging apparatus and methods using the same 审中-公开
    的射线照相检测器与更改监视器用于监视分配空位并反馈给成像设备和方法,使

    公开(公告)号:EP2549297A2

    公开(公告)日:2013-01-23

    申请号:EP12004876.4

    申请日:2012-06-29

    IPC分类号: G01T1/20

    摘要: Embodiments of radiographic imaging systems; digital radiography detectors and methods for using the same can monitor and/or control trap occupancy levels in photosensors of radiographic sensors (e.g., DR FPDs). In exemplary radiographic imaging apparatus embodiments, monitoring of trap occupancy or change in trap occupancy of the photosensor can determine whether an imaging array or detector panel has reached a stable operating point. In another embodiment, trap occupancy information can be used (a) to enable a generator (e.g., x-ray source) for a radiographic exposure and/or (b) to adjust to or to maintain a change in trap occupancy level at pre-determined set-point or to adjust to or maintain a change in trap occupancy level within a prescribed range (e.g., using clock signals and bias voltages applied to the photosensor).

    摘要翻译: 放射线照相成像系统的实施例; 数字射线照相检测器和用于使用相同的可监视和/或放射线传感器的光传感器(E. G.,DR FPD)中控制阱占有水平的方法。 在示例性的放射线成像装置的实施例,在光传感器的阱占有监测阱占有或变化可以确定性地挖掘无论是在成像阵列检测器或面板已达到稳定的工作点。 在另一个,可(a)中使用的实施例的阱占有信息,以使发电机(例如,x射线源),用于射线照相曝光和/或(b)来调整到或在预先保持在阱占有电平的变化 确定性开采设定点或调整到或保持在规定范围内阱占有水平的变化(例如,使用时钟信号和偏置电压施加到所述光电传感器)。

    X-ray diagnosis apparatus
    3.
    发明公开
    X-ray diagnosis apparatus 审中-公开
    X射线诊断设备

    公开(公告)号:EP1525847A1

    公开(公告)日:2005-04-27

    申请号:EP04029180.9

    申请日:2003-06-26

    IPC分类号: A61B6/00 A61B6/03

    摘要: An X-ray diagnosis apparatus including two X-ray detectors which have a plurality of detection elements. The two X-ray detectors are adjacent each other. Readout units read out electric charge from detection elements on the outer parts of the detectors before reading out the electric charge from detection elements on the inner parts where the detectors meet. A display unit displays an X-ray image data which is created by the electric charge read out from the detectors.

    摘要翻译: 一种X射线诊断装置,包括具有多个检测元件的两个X射线检测器。 两个X射线探测器彼此相邻。 读出单元读出检测器外部检测元件的电荷,然后读出检测器相接处内部检测元件的电荷。 显示单元显示由从检测器读出的电荷产生的X射线图像数据。

    CORONARY TRACKING DISPLAY
    7.
    发明公开
    CORONARY TRACKING DISPLAY 失效
    VERFAHREN ZURNACHFÜHRUNGDER KORONAR-ANZEIGE。

    公开(公告)号:EP0515641A1

    公开(公告)日:1992-12-02

    申请号:EP92901555.0

    申请日:1991-11-12

    IPC分类号: A61B6 A61M25 G06T7 H04N5 H05G1

    摘要: Procédé permettant d'afficher sur un écran les détails d'une lésion de l'artère coronaire dans un appareil de cinéangiographie, en réglant chaque image du cinéangiogramme de sorte que la lésion s'affiche en continu en un endroit prédéterminé sur l'écran de visualisation. Le reste de l'anatomie cardiaque bouge, à l'arrière-plan, et dépasse un segment artériel fixe, ceci permettant au personnel médical de pouvoir plus facilement identifier et examiner le segment artériel affiché sur l'écran. Les images cinéangiographiques sont numérisées, traitées par un processeur (201) et décalées numériquement pour placer le segment artériel dans pratiquement le même endroit de visualisation dans chaque image. Des images séquentielles peuvent être présentées à l'observateur sous forme de paires stéréoscopiques, pour produire la pseudostéreopsie. Le segment artériel apparaît pour l'observateur en premier plan, comme s'il flottait devant le reste de l'anatomie cardiaque. On peut ensuite traiter par processus informatique des images pour faciliter l'examen par le personnel médical. Le processeur peut effectuer des mesures quantitatives du cinéangiogramme et peut afficher les résultats de ces mesures pour faciliter le réexamen du cinéangiogramme. On peut faire la moyenne des images pour réduire le bruit d'origine quantique et pour atténuer le bruit provenant de la structure; on peut comparer les images à d'autres cinéangiogrammes précédents pour augmenter la clarté ou le contraste. Des modifications apportées aux coordonnées d'un cinéangiogramme peuvent apporter une aide pour orienter les procédures thérapeutiques, ou peuvent aider à améliorer d'autres procédures d'imagerie telles que la radioscopie.

    摘要翻译: 通过调整电影照像的每一帧以使病变在显示器上的固定位置处不断显示,来显示电影照相中的冠状动脉病变的细节的方法。 剩余的心脏解剖似乎在背景中移动通过静止的动脉段,从而使显示的动脉段更容易识别并由医务人员进行检查。 血管造影图像帧由处理器数字化和处理,并且图像帧被数字移位以将动脉段在每个帧中基本上相同的观察位置。 顺序图像帧可以作为立体对呈现给观看者,以产生伪造图。 动脉段在前景中出现在观察者身上,好像它悬浮在剩下的心脏解剖结构的前面。 可以进一步处理图像帧以帮助医务人员进行检查。 处理器可以进行电影图的定量测量,并且可以显示这些测量的结果以帮助检查电影图。 可以对帧进行平均以减少量子噪声并模糊任何结构噪声; 可以将帧与先前的电影显像进行比较以增加清晰度或对比度。 电影照相机的坐标调整可能有助于指导治疗过程,或有助于增强其他成像过程,如荧光透视。

    Continuously sweeping multiple-pass image acquisition system for peripheral angiography
    9.
    发明公开
    Continuously sweeping multiple-pass image acquisition system for peripheral angiography 失效
    连续扫描多通道图像采集系统,用于外周血管造影

    公开(公告)号:EP0439711A3

    公开(公告)日:1991-09-04

    申请号:EP90122404.8

    申请日:1990-11-23

    IPC分类号: A61B6/00 H04N5/32

    CPC分类号: H04N5/3205 H05G1/60

    摘要: In an X-ray imaging system, images of a moving bolus of contrast medium are acquired by the emission of X-ray radiation pulses through an object to be imaged while controlling the longitudinal movement of an X-ray imaging device of said system in a continuously sweeping manner over said object. For limiting motion induced blur in the acquired images to an acceptable level, X-ray exposure values are developed which limit the duration of the X-ray pulses so that they do not exceed a predetermined maximum duration. In a preferred embodiment multiple passes of the imaging device are made over the object.

    Method for forming energy substraction images
    10.
    发明公开
    Method for forming energy substraction images 失效
    Formationsverfahren von Energiesubtraktionsbildern,Verfahren undGerätzurGlättungvon Bildern。

    公开(公告)号:EP0442468A1

    公开(公告)日:1991-08-21

    申请号:EP91102013.9

    申请日:1991-02-13

    IPC分类号: A61B6/03 G06T5/50 H04N5/32

    摘要: A method for forming an energy subtraction image comprises the steps of recording a plurality of radiation images of an object on recording media by irradiating several kinds of radiation with different energy levels to the object, which is constituted of a plurality of tissues exhibiting different levels of radiation absorptivity with respect to the several kinds of radiation with different energy levels, and then detecting a plurality of original image signals representing the plurality of the radiation images. A first image signal, which represents a first image primarily composed of patterns of first tissues of the object, is generated from the plurality of the original image signals. A first smoothed image signal is generated by processing the first image signal, the first smoothed image signal representing a first smoothed image in which noise components of the first image have been reduced or eliminated. A second image signal is generated by subtracting the first smoothed image signal from an original image signal, the second image signal representing a second image primarily composed of patterns of second tissues of the object.

    摘要翻译: 用于形成能量减影图像的方法包括以下步骤:通过用不同能量级的几种辐射照射到对象上来记录物体在记录介质上的多个辐射图像,该多个辐射图像由多个组织呈现出不同程度的 相对于具有不同能级的几种辐射的辐射吸收率,然后检测表示多个辐射图像的多个原始图像信号。 从多个原始图像信号生成表示主要由对象的第一组织的图案组成的第一图像的第一图像信号。 通过处理第一图像信号来生成第一平滑图像信号,第一平滑图像信号表示第一图像的噪声分量已被减少或消除的第一平滑图像。 通过从原始图像信号中减去第一平滑图像信号来生成第二图像信号,第二图像信号表示主要由对象的第二组织的图案组成的第二图像。