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12 条记录 (耗时 0.017 秒)

    Method and device to automatically determine the rest phase of the heart
    1.
    发明授权
    Method and device to automatically determine the rest phase of the heart 有权
    方法和装置自动确定心脏的休息期

    公开(公告)号：US08520917B2

    公开(公告)日：2013-08-27

    申请号：US12370769

    申请日：2009-02-13

    申请人： Carmel Hayes ,  Katrin Christel Sprung

    发明人： Carmel Hayes ,  Katrin Christel Sprung

    IPC分类号： A61B5/05

    CPC分类号： G01R33/56325 ,  G01R33/543 ,  G06T7/20 ,  G06T2207/10088 ,  G06T2207/30048

    摘要： In a method and device to automatically determine a rest phase of the heart of an examination person in an imaging device, multiple images of the heart are acquired during a cardiac cycle and the rest phase of the heart is automatically determined by post-processing of the acquired images, and the determined rest phase is used for subsequent measurements.

    摘要翻译： 在用于自动确定成像装置中的检查人员的心脏的休息相位的方法和装置中，在心脏周期期间获取心脏的多个图像，并且心脏的其余阶段通过后处理自动确定 获得的图像，并且所确定的休止阶段用于后续测量。

    Automatic localization of the left ventricle in cardiac cine magnetic resonance imaging
    5.
    发明授权
    Automatic localization of the left ventricle in cardiac cine magnetic resonance imaging 有权
    自动定位左心室心电磁共振成像

    公开(公告)号：US08218839B2

    公开(公告)日：2012-07-10

    申请号：US12396534

    申请日：2009-03-03

    申请人： Ying Sun ,  Jens Gühring ,  Marie-Pierre Jolly ,  Carmel Hayes

    发明人： Ying Sun ,  Jens Gühring ,  Marie-Pierre Jolly ,  Carmel Hayes

    IPC分类号： G06K9/00

    CPC分类号： G01R33/56325 ,  A61B5/055 ,  G01R33/4835 ,  G01R33/5608 ,  G06T7/0016 ,  G06T7/12 ,  G06T7/136 ,  G06T7/62 ,  G06T7/66 ,  G06T7/74 ,  G06T2207/10016 ,  G06T2207/10076 ,  G06T2207/10088 ,  G06T2207/20132 ,  G06T2207/30048

    摘要： A method for automatically localizing left ventricle in medical image data includes acquiring a sequence of three-dimensional medical images spanning a cardiac cycle. Each of the images includes a plurality of two-dimensional image slices, one of which is defined as a template slice. The template slice of each medical image of the sequence is automatically cropped to include the heart and a margin around the heart based on temporal variations between pixels of the template slice throughout the sequence of medical images. The template slice of each medical image of the sequence is automatically contoured to determine the endo-cardial and epi-cardial boundaries for at least the end-diastolic and end-systolic phases. Localization information is generated for the left ventricle based on the determined endo-cardial and epi-cardial boundaries for at least the end-diastolic and end-systolic phases.

    摘要翻译： 用于在医学图像数据中自动定位左心室的方法包括获取跨越心动周期的三维医学图像序列。 每个图像包括多个二维图像切片，其中之一被定义为模板切片。 基于整个医学图像序列中的模板片段的像素之间的时间变化，自动裁剪序列的每个医学图像的模板切片以包括心脏和心脏周围的边缘。 该序列的每个医学图像的模板切片被自动轮廓化，以确定至少舒张末期和收缩末期阶段的内心和外心边界。 基于确定的至少舒张末期和收缩末期阶段的内心和外心边界为左心室产生定位信息。

    Method and apparatus for magnetic resonance imaging on the basis of a gradient echo sequence
    8.
    发明授权
    Method and apparatus for magnetic resonance imaging on the basis of a gradient echo sequence 有权
    基于梯度回波序列进行磁共振成像的方法和装置

    公开(公告)号：US08185188B2

    公开(公告)日：2012-05-22

    申请号：US11588710

    申请日：2006-10-26

    申请人： Andreas Greiser ,  Carmel Hayes ,  Wilfried Landschütz ,  Peter Speier

    发明人： Andreas Greiser ,  Carmel Hayes ,  Wilfried Landschütz ,  Peter Speier

    IPC分类号： A61B5/055

    CPC分类号： G01R33/5613 ,  G01R33/567

    摘要： In a method and apparatus for magnetic resonance imaging on the basis of a gradient echo sequence by excitation of nuclear spins and measurement of radio-frequency signals indicating the excited nuclear spins, a) the pulse frequency of the person to be examined is determined, b) the magnetization of the spins is prepared by means of an RF pulse block, c) a number of steps of the spin excitation as well as measurement of an RF response signal are implemented, with the measurement data along a trajectory established by projection gradients being acquired along a first slice established by a slice-selection gradient, d) items b) through c) are repeated multiple times for the first slice, with each repetition of the steps b) through c) ensuing within a time interval that is fixed in duration, and the interval is temporally displaced relative to the determined pulse frequency for at least one portion of the repetitions, and e) items b) through d) are repeated for various slices.

    摘要翻译： 在通过激励核自旋的梯度回波序列和表示激发的核自旋的射频信号的测量的磁共振成像的方法和装置中，a）确定被检查者的脉冲频率，b ）通过RF脉冲块来准备自旋的磁化，c）实现了自旋激发的多个步骤以及RF响应信号的测量，沿着由投影梯度建立的轨迹的测量数据是 沿着由切片选择梯度建立的第一切片获取，d）对于第一切片重复多次的项目b）至c），其中步骤b）至c）的每个重复在随后的固定的时间间隔内 并且对于至少一部分重复，间隔相对于所确定的脉冲频率在时间上移位，并且e）对于各种切片重复项目b）至d）。

    AUTOMATIC LOCALIZATION OF THE LEFT VENTRICLE IN CARDIAC CINE MAGNETIC RESONANCE IMAGING
    9.
    发明申请
    AUTOMATIC LOCALIZATION OF THE LEFT VENTRICLE IN CARDIAC CINE MAGNETIC RESONANCE IMAGING 有权
    心脏电磁共振成像中左心室的自动定位

    公开(公告)号：US20090290777A1

    公开(公告)日：2009-11-26

    申请号：US12396534

    申请日：2009-03-03

    申请人： Ying Sun ,  Jens Guhring ,  Marie-Pierre Jolly ,  Carmel Hayes

    发明人： Ying Sun ,  Jens Guhring ,  Marie-Pierre Jolly ,  Carmel Hayes

    IPC分类号： G06K9/00 ,  A61B5/055

    CPC分类号： G01R33/56325 ,  A61B5/055 ,  G01R33/4835 ,  G01R33/5608 ,  G06T7/0016 ,  G06T7/12 ,  G06T7/136 ,  G06T7/62 ,  G06T7/66 ,  G06T7/74 ,  G06T2207/10016 ,  G06T2207/10076 ,  G06T2207/10088 ,  G06T2207/20132 ,  G06T2207/30048

    摘要： A method for automatically localizing left ventricle in medical image data includes acquiring a sequence of three-dimensional medical images spanning a cardiac cycle. Each of the images includes a plurality of two-dimensional image slices, one of which is defined as a template slice. The template slice of each medical image of the sequence is automatically cropped to include the heart and a margin around the heart based on temporal variations between pixels of the template slice throughout the sequence of medical images. The template slice of each medical image of the sequence is automatically contoured to determine the endo-cardial and epi-cardial boundaries for at least the end-diastolic and end-systolic phases. Localization information is generated for the left ventricle based on the determined endo-cardial and epi-cardial boundaries for at least the end-diastolic and end-systolic phases.

    摘要翻译： 用于在医学图像数据中自动定位左心室的方法包括获取跨越心动周期的三维医学图像序列。 每个图像包括多个二维图像切片，其中之一被定义为模板切片。 基于整个医学图像序列中的模板片段的像素之间的时间变化，自动裁剪序列的每个医学图像的模板切片以包括心脏和心脏周围的边缘。 该序列的每个医学图像的模板切片被自动轮廓化，以确定至少舒张末期和收缩末期阶段的内心和外心边界。 基于确定的至少舒张末期和收缩末期阶段的内心和外心边界为左心室产生定位信息。