公开(公告)号：US20080044073A1

公开(公告)日：2008-02-21

申请号：US11809276

申请日：2007-05-31

Applicant: Philipp Bernhardt ,  Estelle Camus ,  Martin Hoheisel ,  Thomas Redel

Inventor： Philipp Bernhardt ,  Estelle Camus ,  Martin Hoheisel ,  Thomas Redel

IPC: G06K9/00

CPC classification number: G01N23/04 ,  A61B6/4241 ,  A61B6/481 ,  A61B6/482 ,  A61B6/504 ,  A61B6/507 ,  G06T2207/30101

Abstract: A sequence of groups of projection images shows an object under examination comprising a vascular system and its environment. A computer determines a 2-dimensional evaluation image having a plurality of pixels based on combination images determined from the projection images of a group. The combination images have a plurality of pixels with pixel values. The sequence of the combination images shows the time characteristic of the distribution of a contrast medium in the object. The pixels of the evaluation image correspond to those of the projection images. The computer assigns each pixel, at least in a part area of the evaluation image, a type that is characteristic of whether the respective pixel corresponds to a vessel of the vascular system, a perfusion area or a background. It performs the assignment of the type on the basis of the time characteristic of the pixel values of the combination images.

Abstract translation: 一组投影图像的一系列显示一个被检查的物体，包括血管系统及其环境。 基于从组的投影图像确定的组合图像，计算机确定具有多个像素的二维评估图像。 组合图像具有多个具有像素值的像素。 组合图像的顺序示出了对象中造影剂的分布的时间特性。 评估图像的像素对应于投影图像的像素。 计算机至少在评估图像的一部分区域中分配每个像素，其特征在于各个像素是否对应于血管系统的血管，灌注区域或背景。 它根据组合图像的像素值的时间特性来执行类型的分配。

公开(公告)号：US20060182221A1

公开(公告)日：2006-08-17

申请号：US11352716

申请日：2006-02-13

Applicant: Philipp Bernhardt ,  Martin Hoheisel

Inventor： Philipp Bernhardt ,  Martin Hoheisel

IPC: H05G1/22

CPC classification number: A61B6/542 ,  A61B6/503 ,  A61B6/545

Abstract: The invention relates to an x-ray diagnostics device having an x-ray tube for generating x-rays operated by a high voltage generator, having an x-ray detector for converting incident x-rays into electrical signals, having an image processing system and a control device for the duration of the x-ray pulse, in which parameters of the x-ray diagnostics device can be adjusted, with a computing unit being assigned to the control device, said computing unit determining the spatial frequency-dependent signal-to-noise ratio on the basis of the parameters and calculating therefrom the duration of the x-ray pulse and/or the remaining parameters required for a recording. The invention further relates to a method of this type for controlling the x-ray diagnostics device, in which the duration of the x-ray pulse is controlled such that the recognizability of relevant, moved objects is maximal.

Abstract translation: 本发明涉及一种具有用于产生由高压发生器操作的x射线的X射线管的X射线诊断装置，具有用于将入射的X射线转换为电信号的X射线检测器，具有图像处理系统和 控制装置，其中X射线脉冲的持续时间可以通过计算单元被分配给控制装置来调节x射线诊断装置的参数，所述计算单元确定空间频率相关信号到 - 根据参数计算噪声比，并从中计算x射线脉冲的持续时间和/或记录所需的剩余参数。 本发明还涉及这种类型的用于控制X射线诊断装置的方法，其中控制x射线脉冲的持续时间，使得相关的被移动物体的可识别性是最大的。

公开(公告)号：US20150031986A1

公开(公告)日：2015-01-29

申请号：US14011984

申请日：2013-08-28

Applicant: Philipp Bernhardt ,  Martin Hoheisel ,  Thomas Mertelmeier ,  Ralf Nanke ,  Marcus Radicke

Inventor： Philipp Bernhardt ,  Martin Hoheisel ,  Thomas Mertelmeier ,  Ralf Nanke ,  Marcus Radicke

IPC: A61B6/12

CPC classification number: A61B6/12 ,  A61B6/4441 ,  A61B6/4458 ,  A61B6/484

Abstract: A medical instrument is provided for use with a phase contrast imaging. The medical instrument includes at least one component, which has a strong small angle scattering of x-rays. Furthermore, a corresponding x-ray recording system with phase contrast imaging for recording an examination object may include such a medical instrument.

Abstract translation: 提供了一种用于相位成像的医疗仪器。 该医疗仪器包括至少一个部件，其具有强烈的小角度X射线散射。 此外，具有用于记录检查对象的相位对比成像的对应的X射线记录系统可以包括这样的医疗器械。

公开(公告)号：US07860288B2

公开(公告)日：2010-12-28

申请号：US11809276

申请日：2007-05-31

Applicant: Philipp Bernhardt ,  Estelle Camus ,  Martin Hoheisel ,  Thomas Redel

Inventor： Philipp Bernhardt ,  Estelle Camus ,  Martin Hoheisel ,  Thomas Redel

IPC: G06K9/00 ,  H05G1/70 ,  H05G1/10 ,  A61B5/05 ,  A61B5/02

CPC classification number: G01N23/04 ,  A61B6/4241 ,  A61B6/481 ,  A61B6/482 ,  A61B6/504 ,  A61B6/507 ,  G06T2207/30101

Abstract: A sequence of groups of projection images shows an object under examination comprising a vascular system and its environment. A computer determines a 2-dimensional evaluation image having a plurality of pixels based on combination images determined from the projection images of a group. The combination images have a plurality of pixels with pixel values. The sequence of the combination images shows the time characteristic of the distribution of a contrast medium in the object. The pixels of the evaluation image correspond to those of the projection images. The computer assigns each pixel, at least in a part area of the evaluation image, a type that is characteristic of whether the respective pixel corresponds to a vessel of the vascular system, a perfusion area or a background. It performs the assignment of the type on the basis of the time characteristic of the pixel values of the combination images.

Abstract translation: 一组投影图像的一系列显示一个被检查的物体，包括血管系统及其环境。 基于从组的投影图像确定的组合图像，计算机确定具有多个像素的二维评估图像。 组合图像具有多个具有像素值的像素。 组合图像的顺序示出了对象中造影剂的分布的时间特性。 评估图像的像素对应于投影图像的像素。 计算机至少在评估图像的一部分区域中分配每个像素，其特征在于各个像素是否对应于血管系统的血管，灌注区域或背景。 它根据组合图像的像素值的时间特性来执行类型的分配。

公开(公告)号：US07372944B2

公开(公告)日：2008-05-13

申请号：US11352716

申请日：2006-02-13

Applicant: Philipp Bernhardt ,  Martin Hoheisel

Inventor： Philipp Bernhardt ,  Martin Hoheisel

IPC: H05G1/22

CPC classification number: A61B6/542 ,  A61B6/503 ,  A61B6/545

Abstract: The invention relates to an x-ray diagnostics device having an x-ray tube for generating x-rays operated by a high voltage generator, having an x-ray detector for converting incident x-rays into electrical signals, having an image processing system and a control device for the duration of the x-ray pulse, in which parameters of the x-ray diagnostics device can be adjusted, with a computing unit being assigned to the control device, said computing unit determining the spatial frequency-dependent signal-to-noise ratio on the basis of the parameters and calculating therefrom the duration of the x-ray pulse and/or the remaining parameters required for a recording. The invention further relates to a method of this type for controlling the x-ray diagnostics device, in which the duration of the x-ray pulse is controlled such that the recognizability of relevant, moved objects is maximal.

Abstract translation: 本发明涉及一种具有用于产生由高压发生器操作的x射线的X射线管的X射线诊断装置，具有用于将入射的X射线转换为电信号的X射线检测器，具有图像处理系统和 控制装置，其中X射线脉冲的持续时间可以通过计算单元被分配给控制装置来调节x射线诊断装置的参数，所述计算单元确定空间频率相关信号到 - 根据参数计算噪声比，并从中计算x射线脉冲的持续时间和/或记录所需的剩余参数。 本发明还涉及这种类型的用于控制X射线诊断装置的方法，其中控制x射线脉冲的持续时间，使得相关的被移动物体的可识别性是最大的。

公开(公告)号：US07298882B2

公开(公告)日：2007-11-20

申请号：US11058025

申请日：2005-02-15

Applicant: Philipp Bernhardt ,  Lothar Bätz ,  Ernst-Peter Rührnschopf ,  Martin Hoheisel

Inventor： Philipp Bernhardt ,  Lothar Bätz ,  Ernst-Peter Rührnschopf ,  Martin Hoheisel

IPC: G06T5/00

CPC classification number: G06T7/0002 ,  A61B5/02007 ,  A61B5/7257 ,  A61B6/12 ,  A61B6/4291

Abstract: A method for defining image quality characteristics of X-ray based medical projection imaging devices is provided. A spatial frequency-dependent signal-to-noise ratio function includes image quality parameters of spatial resolution, object contrast and noise. The detectability of an object embedded into a defined background, such as a cardiac guide wire in a patient is determined. An X-ray system may be defined and set up for obtaining an optimized image quality to determine the best object detectability for a given patient dose.

Abstract translation: 提供了一种用于定义基于X射线的医疗投影成像装置的图像质量特性的方法。 空间频率相关信噪比函数包括空间分辨率，对象对比度和噪声的图像质量参数。 确定嵌入到定义的背景中的对象的可检测性，例如患者中的心导丝。 可以定义和设置X射线系统以获得优化的图像质量，以确定给定患者剂量的最佳对象检测能力。

公开(公告)号：US20060182322A1

公开(公告)日：2006-08-17

申请号：US11058025

申请日：2005-02-15

Applicant: Philipp Bernhardt ,  Lothar Batz ,  Ernst-Peter Ruhrnschopf ,  Martin Hoheisel

Inventor： Philipp Bernhardt ,  Lothar Batz ,  Ernst-Peter Ruhrnschopf ,  Martin Hoheisel

IPC: G06K9/00

CPC classification number: G06T7/0002 ,  A61B5/02007 ,  A61B5/7257 ,  A61B6/12 ,  A61B6/4291

Abstract: A method for defining image quality characteristics of X-ray based medical projection imaging devices is provided. A spatial frequency-dependent signal-to-noise ratio function includes image quality parameters of spatial resolution, object contrast and noise. The detectability of an object embedded into a defined background, such as a cardiac guide wire in a patient is determined. An X-ray system may be defined and set up for obtaining an optimized image quality to determine the best object detectability for a given patient dose.

Abstract translation: 提供了一种用于定义基于X射线的医疗投影成像装置的图像质量特性的方法。 空间频率相关信噪比函数包括空间分辨率，对象对比度和噪声的图像质量参数。 确定嵌入到定义的背景中的对象的可检测性，例如患者中的心导丝。 可以定义和设置X射线系统以获得优化的图像质量，以确定给定患者剂量的最佳对象检测能力。

公开(公告)号：US11185372B2

公开(公告)日：2021-11-30

申请号：US14594123

申请日：2015-01-10

Applicant: Olivier Ecabert ,  Martin Hoheisel

Inventor： Olivier Ecabert ,  Martin Hoheisel

IPC: A61B34/20 ,  A61B8/12 ,  A61B17/00 ,  A61M25/01 ,  A61B8/08 ,  A61B8/00 ,  A61B90/00 ,  A61B34/30

Abstract: A method for assisting in navigation of a medical instrument such as a catheter inside a hollow body such as a vascular system based on a dataset provided by a sensor device of the medical instrument is provided The method includes determining, by a control device, an internal extent of the hollow body based on the provided dataset and determining, by the control device, a navigation path for an impending movement of the medical instrument through the hollow body based on the determined internal extent. The control device is able to generate a control signal that describes a movement along the navigation path.

公开(公告)号：US08165270B2

公开(公告)日：2012-04-24

申请号：US12566858

申请日：2009-09-25

Applicant: Christian David ,  Tilman Donath ,  Eckhard Hempel ,  Martin Hoheisel ,  Barbara Matthis ,  Franz Pfeiffer ,  Stefan Popescu

Inventor： Christian David ,  Tilman Donath ,  Eckhard Hempel ,  Martin Hoheisel ,  Barbara Matthis ,  Franz Pfeiffer ,  Stefan Popescu

IPC: G21K1/00

CPC classification number: A61B6/06 ,  A61B6/03 ,  A61B6/4092 ,  A61B6/4291 ,  A61B6/484 ,  G01T1/00 ,  G21K1/025 ,  G21K1/06 ,  G21K2207/005 ,  Y10T29/49

Abstract: In a method for the production of x-ray-optical gratings composed of a first material forming of periodically arranged grating webs and grating openings, a second material is applied by electroplating to fill the grid openings. The electroplating is continued until a cohesive layer of the second material with uniform height is created over the grating webs with this layer having a large absorption coefficient, the absorption properties of the grating structure of the grating are homogenized, so an improvement of the measurement signals that are generated with this grating is improved. Moreover, the mechanical stability of gratings produced in such a manner is improved.

Abstract translation: 在用于生产由形成周期性布置的光栅幅材和光栅开口的第一材料组成的x射线光栅的方法中，通过电镀施加第二材料以填充栅格开口。 电镀继续进行，直到在光栅幅面上形成具有均匀高度的第二材料的内聚层，该层具有大的吸收系数，光栅的光栅结构的吸收特性被均匀化，因此测量信号的改进 改善了用该光栅产生的光栅。 此外，改善了以这种方式制造的光栅的机械稳定性。

公开(公告)号：US20090268866A1

公开(公告)日：2009-10-29

申请号：US12428785

申请日：2009-04-23

Applicant: Martin Hoheisel

Inventor： Martin Hoheisel

IPC: A61B6/04

CPC classification number: A61B6/0414 ,  A61B5/0053 ,  A61B6/502

Abstract: In a method and apparatus to generate a mammographic image, the apparatus has a radiation source, a digital radiation detector, and support plate and a compression plate between which the breast is compressed during image acquisition. A first image data set depicting the breast is acquired, with a first degree of compression of the breast. A second degree of compression of the breast is set and a second image data set depicting the breast is acquired. The first and second image data sets are linked for the generation of the diagnostic image.

Abstract translation: 在产生乳房照相图像的方法和装置中，该装置具有辐射源，数字辐射检测器和支撑板以及压缩板，在图像采集期间乳房被压缩。 获取描绘乳房的第一图像数据集，具有乳房的第一程度的压缩。 设置乳房的第二程度的压缩，并且获取描绘乳房的第二图像数据集。 第一和第二图像数据集被链接以产生诊断图像。