LUNG MEASUREMENTS
    1.
    发明申请
    LUNG MEASUREMENTS 审中-公开
    肺功能测量

    公开(公告)号:WO2014202705A1

    公开(公告)日:2014-12-24

    申请号:PCT/EP2014/062908

    申请日:2014-06-19

    Abstract: The present invention relates to lung measurement. In order to provide enhanced information about a patient that facilitates further assessment steps, 2D X-ray image data of a patient's chest is provided, and the image data is segmented to identify lung structures to provide segmented image data separated from un-segmented areas. Further, spatial lung volume information is extracted from the image data using the segmented image data derived from the image data. Still further, lungs symmetry information is determined using the extracted spatial lung volume information. Finally, the lungs symmetry information is provided to a user. For example, a 2D X-ray image data of a patient's chest is provided (84) and a lungs mask image is formed (86) after the step of segmenting the input image data. Then, the lungs mask image is used to define areas, within which a predetermined adaptation is applied (88) to the original 2D X-ray image data producing a thorax mask image. Next, left and right images are provided (90) showing the left and the right spatial lungs volume information of the regions defined originally by the lungs mask image. Finally, based on the spatial lungs volume information, lungs symmetry information or total lung volumes may be calculated and provided (92).

    Abstract translation: 本发明涉及肺部测量。 为了提供有助于进一步评估步骤的患者的增强信息,提供患者胸部的2D X射线图像数据,并且分割图像数据以识别肺结构以提供从未分割区域分离的分割图像数据。 此外,使用从图像数据导出的分割图像数据,从图像数据中提取空间肺容积信息。 此外,使用所提取的空间肺容积信息来确定肺对称性信息。 最后,向用户提供肺对称信息。 例如,提供患者胸部的2D X射线图像数据(84),并且在分割输入图像数据的步骤之后形成肺屏蔽图像(86)。 然后,肺屏蔽图像用于限定区域,在该区域中,对原始2D X射线图像数据施加预定的适应(88),产生胸罩掩模图像。 接下来,提供左图像和右图像(90),其示出了最初由肺屏蔽图像定义的区域的左和右空间肺体积信息。 最后,基于空间肺体积信息,可以计算和提供肺对称信息或总肺容积(92)。

    DETERMINING A RESIDUAL MODE IMAGE FROM A DUAL ENERGY IMAGE

    公开(公告)号:WO2014141163A3

    公开(公告)日:2014-09-18

    申请号:PCT/IB2014/059770

    申请日:2014-03-14

    Abstract: A digital image (40) comprises pixels with intensities relating to different energy levels. A method for processing the digital image (40) comprises the steps of: receiving first image data (42a) and second image data (42b) of the digital image (40), the first image data (42a) encoding a first energy level and the second image data (42b) encoding a second energy level; determining a regression model (44) from the first image data (42a) and the second image data (42b), the regression model (44) establishing a correlation between intensities of pixels of the first image data (42a) with intensities of pixels of the second image data (42b); and calculating residual mode image data (46) from the first image data (42a) and the second image data (42b), such that a pixel of the residual mode image data(46) has an intensity based on the difference of an intensity of the second image data(42b) at the pixel and a correlated intensity of the pixel of the first image data (42a), the correlated intensity determinate by applying the regression model to the intensity of pixel of the first image data (42a).

    MEDICAL IMAGE POST-PROCESSING
    3.
    发明申请

    公开(公告)号:WO2022089982A1

    公开(公告)日:2022-05-05

    申请号:PCT/EP2021/078860

    申请日:2021-10-19

    Abstract: The present disclosure provides means for improved medical image post-processing. It utilizes an image data post-processing mechanism (122) comprising an encoder (122A) configured to encode input image data with input image properties and a decoder (122B) configured to decode the input image data to provide output image data with output image properties different to the input image properties. The post-processing mechanism (122) comprises a first post-processing setting applied to the encoder and/or the decoder and assigned to first output image properties. Further, the post-processing mechanism (122) is configured to predict a second post-processing setting applicable to the encoder and/or the decoder and assigned to second output image properties. The post-processing mechanism (122) is further configured to provide an image proposal comprising the input image data post-processed with the predicted second post-processing setting. Furthermore, the post-processing mechanism (122) is configured to receive a feedback signal assigned to the image proposal, and to evaluate the predicted second post-processing setting based on the received feedback signal.

    DETECTION OF REGIONS WITH LOW INFORMATION CONTENT IN DIGITAL X-RAY IMAGES

    公开(公告)号:WO2019025225A1

    公开(公告)日:2019-02-07

    申请号:PCT/EP2018/069959

    申请日:2018-07-24

    Abstract: an image processing system and related method. The system comprises an input interface (IN) configured for receiving an input image. A filter (FIL) of the system filters said input image to obtain a structure image from said input image, said structure image including a range of image values. A range identifier (RID) of the system identifies, based on an image histogram for the structure image, an image value sub-range within said range. The sub-range being associated with a region of interest. The system output through an output interface (OUT) a specification for said image value sub-range. In addition or instead, a mask image for the region of interest or for region or low information is output.

    X-RAY COLLIMATOR SIZE AND POSITION ADJUSTMENT BASED ON PRE-SHOT
    5.
    发明申请
    X-RAY COLLIMATOR SIZE AND POSITION ADJUSTMENT BASED ON PRE-SHOT 审中-公开
    基于PRE-SHOT的X-RAY COLLIMATOR SIZE AND POSITION ADJUSTMENT

    公开(公告)号:WO2014125090A1

    公开(公告)日:2014-08-21

    申请号:PCT/EP2014/052955

    申请日:2014-02-14

    Abstract: An X-ray apparatus for image acquisition and a related method. The apparatus comprises a field-of-view corrector (CS) configured to receive a scout image (SI) acquired by the imager with a tentative collimator setting in a pre-shot imaging phase where said imager operates with a low dosage radiation cone causing the detector to register the scout image. The low dosage cone has, in the detector's image plane, a first cross section smaller than the total area of the detector surface. The field-of-view corrector (CS) uses said scout image to establish field-of-view correction information for a subsequent imaging phase where the imager is to operate with a high dosage radiation cone, the high dosage higher than the low dosage.

    Abstract translation: 一种用于图像采集的X射线设备及相关方法。 该设备包括视场校正器(CS),其被配置为接收由成像器获取的侦察图像(SI),其中预成像阶段中的临时准直器设置,其中所述成像器以低剂量辐射锥体操作, 检测器注册侦察图像。 在检测器的图像平面中,低剂量锥体具有小于检测器表面的总面积的第一横截面。 视场校正器(CS)使用所述侦察图像来建立后续成像阶段的视场校正信息,其中成像器将用高剂量辐射锥体操作,高剂量高于低剂量。

    3D ULTRASOUND IMAGING WITH FOV ADAPTATION
    6.
    发明申请

    公开(公告)号:WO2023088715A1

    公开(公告)日:2023-05-25

    申请号:PCT/EP2022/081031

    申请日:2022-11-08

    Abstract: A method is provided for adapting a 3D field of view (FOV) in ultrasound data acquisition so as to minimize the FOV volume in a manner that is controlled and precise. The method comprises defining a volumetric region across which 3D ultrasound data is desired, and then adapting the data acquisition field of view (FOV) in dependence upon the defined volumetric region, to encompass the region. This is achieved based on adapting a scan line length (or scan depth) of each individual scan line based on the defined volumetric region. In some embodiments, the volumetric region may be defined based on anatomical segmentation of a reference ultrasound dataset acquired in an initial step, and setting the volumetric region in dependence upon boundaries of an identified object of interest. The volumetric region may in a subset of embodiments be set as the region occupied by a detected anatomical object of interest.

    GUIDANCE FOR POSITIONING A PATIENT IN MEDICAL IMAGING

    公开(公告)号:WO2022106305A1

    公开(公告)日:2022-05-27

    申请号:PCT/EP2021/081465

    申请日:2021-11-12

    Abstract: A computer-implemented method for positioning a subject in medical imaging, comprising: receiving a first image (20) of a region of interest (14, 16) of the subject (S10); determining first positioning data based on the first image (20), wherein the first positioning data indicates an alignment of the region of interest (14, 16) relative to a first image acquisition unit used to acquire the first image (20) (S20); determining guidance data based on the first positioning data, wherein the guidance data comprises a guidance for an alignment of the region of interest (14, 16) relative to a second image acquisition unit used to acquire a second image (60) from a current alignment to a target alignment, wherein the target alignment is to correspond to that derived from the first positioning data (S30); providing the guidance data for acquiring the second image (60) (S40).

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