公开(公告)号：US20110064285A1

公开(公告)日：2011-03-17

申请号：US12846273

申请日：2010-07-29

申请人： Yunqiang Chen ,  Ti-chiun Chang ,  Michelle Xiaohong Yan ,  Tong Fang ,  Thomas Pohl ,  Stefan Böhm ,  Peter Durlak ,  Markus Roßmeier

发明人： Yunqiang Chen ,  Ti-chiun Chang ,  Michelle Xiaohong Yan ,  Tong Fang ,  Thomas Pohl ,  Stefan Böhm ,  Peter Durlak ,  Markus Roßmeier

IPC分类号： G06K9/00

CPC分类号： G06K9/6206 ,  G06K2209/057 ,  G06T5/001 ,  G06T5/20 ,  G06T5/50 ,  G06T2207/10016 ,  G06T2207/10121 ,  G06T2207/30101

摘要： A method for enhancing stent visibility in digital medical images includes providing a time series of 2-dimensional (2D) images of a stent in a vessel, estimating motion of the stent in a subset of images of the time series of images, estimating motion of clutter in the subset of images, where clutter comprises anatomical structures other than the stent, estimating a clutter layer in the subset of images from the estimated clutter motion, estimating a stent layer in the subset of images from the clutter layer and the estimated clutter motion, and minimizing a functional of the estimated stent motion, the estimated stent layer, the estimated clutter motion, and the estimated clutter layer to in calculate a refined stent layer image, where the refined stent layer image has enhanced visibility of the stent.

摘要翻译： 一种用于增强数字医学图像中的支架可视性的方法包括在血管中提供支架的二维（2D）图像的时间序列，估计支架在时间序列图像的图像的子集中的运动，估计运动 在图像子集中混乱，其中杂波包括除了支架之外的解剖结构，从估计的杂波运动估计图像子集中的杂波层，估计来自杂波层的图像子集中的支架层和估计的杂波运动 并且在计算精制的支架层图像时，将精确的支架层图像具有增强的支架的可视性，并且将估计的支架运动，估计的支架层，估计的杂波运动和估计的杂波层的功能最小化。

公开(公告)号：US20140294149A1

公开(公告)日：2014-10-02

申请号：US14227832

申请日：2014-03-27

申请人： Johannes Rieber ,  Markus Roßmeier

发明人： Johannes Rieber ,  Markus Roßmeier

IPC分类号： G06T7/00 ,  G06T3/40 ,  G01N23/04 ,  G06T11/60

CPC分类号： G06T7/0012 ,  G06T7/70 ,  G06T2207/10116 ,  G06T2207/20221 ,  G06T2207/30021 ,  G06T2207/30101

摘要： A method includes x-ray image recording of a sequence of overview images of a guidewire during movement of the guidewire through an occlusion, and continuously updated determining of the position of the guidewire using an image recognition algorithm from the overview images. The method also includes continuously updated determining of the position of a tip of the guidewire using a further image recognition algorithm from the overview images, and determining a sequence of zoom images from the sequence of overview images. The zoom images, based on the position determination of the tip of the guidewire, show a cutout with the tip that is enlarged from the overview x-ray images. The method also includes automatic real-time display of at least one overview image with a displayed guidewire in each instance together with at least one zoom image with a displayed tip of the guidewire on a display unit.

摘要翻译： 一种方法包括在通过遮挡的导丝运动期间引导线的一系列概览图像的X射线图像记录，以及使用来自概览图像的图像识别算法来连续更新确定导丝的位置。 该方法还包括使用来自概览图像的另外的图像识别算法来连续更新确定导丝末端的位置，以及从概览图像序列确定缩放图像序列。 基于导丝的尖端的位置确定的变焦图像示出了具有从概述x射线图像放大的尖端的切口。 该方法还包括在每个实例中与显示的导丝一起自动实时显示至少一个概览图像，以及在显示单元上具有至少一个具有引导线的显示尖端的缩放图像。