公开(公告)号：US09730668B2

公开(公告)日：2017-08-15

申请号：US14734162

申请日：2015-06-09

申请人： Philipp Bernhardt

发明人： Philipp Bernhardt

IPC分类号： A61B6/00 ,  A61B6/03

CPC分类号： A61B6/542 ,  A61B6/032 ,  A61B6/5258

摘要： A method for operating a computed tomograph is provided, wherein an X-ray penetrates an object from different positions, a deposition of an individual dose is effected in at least one part of the object, and an image signal is generated in the detector by way of a transmitted intensity of the X-ray, wherein exposure-related parameters for the respective different positions are individually set such that with respect to a specific position, the share of the associated individual dose is raised if a raising of the individual dose in the specific position brings about a greater improvement in the image quality than in another position, or the share of the associated individual dose is lowered if a lowering of the individual dose in the specific position brings about a smaller deterioration in the image quality than in another position, in order to lower stochastic risks for mutations and uncontrolled cell growth.

公开(公告)号：US20150031986A1

公开(公告)日：2015-01-29

申请号：US14011984

申请日：2013-08-28

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

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

IPC分类号： A61B6/12

CPC分类号： A61B6/12 ,  A61B6/4441 ,  A61B6/4458 ,  A61B6/484

摘要： 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.

摘要翻译： 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：US20130301807A1

公开(公告)日：2013-11-14

申请号：US13875988

申请日：2013-05-02

申请人： Philipp Bernhardt ,  Hans Liegl ,  Reiner Franz Schulz

发明人： Philipp Bernhardt ,  Hans Liegl ,  Reiner Franz Schulz

IPC分类号： G21K1/10

CPC分类号： G21K1/10 ,  A61B6/4035

摘要： An adaptive X-ray filter for varying a local intensity of X-ray radiation includes a first chamber containing a magnetorheological or electrorheological first liquid, a second chamber containing a second liquid that absorbs X-ray radiation, and a flexible membrane that separates the first chamber from the second chamber. Using the flexible membrane, a layer thickness ratio of the first liquid and the second liquid may be varied. A heating apparatus that heats the second liquid is arranged in the adaptive X-ray filter. The second liquid is a liquid metal.

摘要翻译： 用于改变X射线辐射的局部强度的自适应X射线滤光器包括包含磁流变或电流变学第一液体的第一室，包含吸收X射线辐射的第二液体的第二室，以及分离第一 第二室的室。 使用柔性膜，可以改变第一液体和第二液体的层厚度比。 加热第二液体的加热装置配置在自适应X射线滤波器中。 第二液体是液态金属。

公开(公告)号：US08213574B2

公开(公告)日：2012-07-03

申请号：US12836653

申请日：2010-07-15

申请人： Rosemarie Banckwitz ,  Philipp Bernhardt ,  Johannes Rieber

发明人： Rosemarie Banckwitz ,  Philipp Bernhardt ,  Johannes Rieber

IPC分类号： H05G1/64

CPC分类号： A61B6/504 ,  A61B6/4233 ,  A61B6/4441 ,  A61B6/587

摘要： A method for operating an x-ray image recording device having a movable x-ray detector on an-x-ray c-arm is provided. The x-ray C-arm supports an x-ray source and the x-ray detector which can be moved in the direction of the x-ray source. A variable is calculated which specifies the image quality of an x-ray image to be obtained in a position of the x-ray C-arm in a position of the x-ray detector and/or specifies the exposure dose of an operating person. A measure is taken as a function of the variable which results in a movement of the x-ray detector by the operating person and/or by an automatic movement. X-ray images are recorded in positions of the x-ray detector in which the image quality and/or the exposure dose of an operating person are optimal.

摘要翻译： 提供了一种在x射线c臂上操作具有可移动X射线检测器的X射线图像记录装置的方法。 X射线C臂支撑X射线源和可以在x射线源的方向上移动的x射线检测器。 计算出在X射线检测器的位置处的X射线C臂的位置中获得的x射线图像的图像质量和/或指定操作者的曝光剂量的变量。 作为变量的函数的度量，其导致操作者的X射线检测器的移动和/或通过自动运动。 X射线图像被记录在x射线检测器的位置，其中操作人员的图像质量和/或曝光剂量是最佳的。

公开(公告)号：US20110280370A1

公开(公告)日：2011-11-17

申请号：US13105502

申请日：2011-05-11

申请人： Philipp Bernhardt

发明人： Philipp Bernhardt

IPC分类号： G01N23/04 ,  G01T1/20

CPC分类号： G03B42/02 ,  G01T1/20 ,  G03B42/08

摘要： An X-ray radiation detector (100) consists of an arrangement with photodetector elements (12) and a scintillator layer (14) on the same. It is assumed in an exemplary fashion that the scintillator layer (14) subjects an input signal, which describes an object to be imaged, to a convolution with a modulation transfer function. The effect of this can be cancelled, particularly by obtaining a test X-ray image in advance, with the aid of which this modulation transfer function, or a similar variable providing information on the modulation transfer function, is established. If use is made of photodetectors that are based on CMOS technology, use can be made of a particularly thick scintillator layer made of gadolinium oxysulfide, which absorbs a particularly large amount of X-ray radiation. High-contrast X-ray images are obtained in this fashion.

摘要翻译： X射线辐射检测器（100）由其上具有光电检测器元件（12）和闪烁体层（14）的布置组成。 以示例性方式假设闪烁体层（14）将描述要成像的对象的输入信号对准具有调制传递函数的卷积。 可以取消这种效果，特别是通过预先获得测试X射线图像，借助于该调制传递函数或关于调制传递函数的相似变量提供信息建立起来。 如果使用基于CMOS技术的光电检测器，则可以使用特别厚的由硫氧化钆制成的闪烁体层，其吸收特别大量的X射线辐射。 以这种方式获得高对比度的X射线图像。

公开(公告)号：US07860288B2

公开(公告)日：2010-12-28

申请号：US11809276

申请日：2007-05-31

申请人： Philipp Bernhardt ,  Estelle Camus ,  Martin Hoheisel ,  Thomas Redel

发明人： Philipp Bernhardt ,  Estelle Camus ,  Martin Hoheisel ,  Thomas Redel

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

CPC分类号： G01N23/04 ,  A61B6/4241 ,  A61B6/481 ,  A61B6/482 ,  A61B6/504 ,  A61B6/507 ,  G06T2207/30101

摘要： 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.

摘要翻译： 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：US20100053203A1

公开(公告)日：2010-03-04

申请号：US12549039

申请日：2009-08-27

申请人： Philipp Bernhardt ,  Bernhard Scholz

发明人： Philipp Bernhardt ,  Bernhard Scholz

IPC分类号： G09G5/00 ,  G06K9/00

CPC分类号： A61B6/032 ,  A61B6/4441 ,  A61B6/466 ,  A61B6/5235 ,  G06T5/003

摘要： The invention relates to a method and a device for increasing contrast in medical images generated by an imaging system featuring an x-ray source and a detector. The detector detects x-rays of the x-ray source and converts image signals from the x-rays. The image signals are transferred to a control and processing unit for processing. Deconvolution of the image signals is carried out by application of an inverse modulation transfer function modified by a regularization. At least a volume image can be reconstructed from the deconvolved image signals.

摘要翻译： 本发明涉及一种用于增加由具有X射线源和检测器的成像系统产生的医学图像中的对比度的方法和装置。 检测器检测X射线源的X射线并转换来自X射线的图像信号。 图像信号被传送到控制和处理单元进行处理。 通过应用由正则化修正的逆调制传递函数来执行图像信号的去卷积。 可以从解卷积图像信号中重构体积图像。

公开(公告)号：US20100027867A1

公开(公告)日：2010-02-04

申请号：US12148791

申请日：2008-04-22

申请人： Philipp Bernhardt ,  Ernst-Peter Ruhrnschopf

发明人： Philipp Bernhardt ,  Ernst-Peter Ruhrnschopf

IPC分类号： G06K9/00 ,  G01N23/04

CPC分类号： A61B6/00 ,  A61B6/4035 ,  A61B6/482 ,  A61B6/583

摘要： The invention relates to a method for creating scatter-corrected mass density image in dual energy X-ray absorptiometry. The mass density image is created using additional information provided by attenuation images at different energy levels in an inhomogeneous correction image area. A multi-dimensional mass density is found that is consistent for a plurality of the attenuation images by inverting a primary radiation function. A scatter fraction is determined on the basis of the multi-dimensional mass density.

摘要翻译： 本发明涉及一种用于在双能X射线吸收测定法中产生散射校正质量密度图像的方法。 使用由不均匀校正图像区域中的不同能量级别的衰减图像提供的附加信息来创建质量密度图像。 发现通过反转主辐射函数对多个衰减图像是一致的多维质量密度。 基于多维质量密度确定散射分数。

公开(公告)号：US07441954B2

公开(公告)日：2008-10-28

申请号：US11352694

申请日：2006-02-13

申请人： Philipp Bernhardt

发明人： Philipp Bernhardt

IPC分类号： H01J35/16

CPC分类号： A61B6/107

摘要： Radiation image capture apparatus, in particular x-ray apparatus, comprising a radiation source and a radiation receptor, between which an examination object is to be positioned for image capture, a laterally closed apron-like radiation absorption apparatus which can be moved in the direction of the examination object to absorb scattered radiation emitted by the examination object being pro-vided at the radiation source and/or at the radiation receptor.

摘要翻译： 辐射图像捕获装置，特别是包括辐射源和辐射接收器的X射线装置，在其之间放置检查对象用于图像捕获，横向闭合的围裙状辐射吸收装置，其能够沿着方向 的检查对象，以吸收由辐射源和/或放射线接收器处被检查物体发射的散射辐射。

公开(公告)号：US07428296B2

公开(公告)日：2008-09-23

申请号：US11437090

申请日：2006-05-19

申请人： Philipp Bernhardt ,  Jan Boese ,  Marcus Pfister ,  Norbert Rahn

发明人： Philipp Bernhardt ,  Jan Boese ,  Marcus Pfister ,  Norbert Rahn

IPC分类号： H05G1/54 ,  H05G1/02

CPC分类号： A61B6/102 ,  G05B19/4061 ,  G05B2219/45169 ,  G05B2219/49143

摘要： The invention relates to a medical imaging system as well as a collision protection method for such a system. In this system the movement of a moveable part, e.g. a C-arm, is stopped or slowed down, if the part enters an individual protective zone enclosing the patient. This zone is calculated individually for each patient from the surface of the patient detected by an optical sensor.

摘要翻译： 本发明涉及医疗成像系统以及这种系统的碰撞保护方法。 在该系统中，可移动部件的运动，例如， 如果部件进入包围患者的个人保护区，则停止或减慢C形臂。 对于由光学传感器检测到的患者表面的每个患者，该区域被分别计算。