公开(公告)号：US20070165989A1

公开(公告)日：2007-07-19

申请号：US11336269

申请日：2006-01-20

申请人： Luis Serra Del Molino ,  Wei Zhang ,  Ralf Kockro

发明人： Luis Serra Del Molino ,  Wei Zhang ,  Ralf Kockro

IPC分类号： G02B6/36

CPC分类号： G01R33/283 ,  G01R33/546 ,  G01R33/5608 ,  G01R33/56341

摘要： One embodiment of the present invention includes a system comprising an input interface having at least 3 degrees of spatial freedom for input control; and a diffusion tensor imaging (DTI) module operable with the input interface having at least 3 degrees of spatial freedom. In one embodiment, the DTI module is operable to compute fiber bundles. The module is further operable to identify one or more 3D regions of interests (ROIs) in a reference volume, and compute or identify the fiber bundles passing through one or more 3D ROIs. In one embodiment, the system support displaying a 3D stereoscopic image of the fiber bundles passing through a 3D ROI.

摘要翻译： 本发明的一个实施例包括一种系统，其包括具有至少3度空间自由度用于输入控制的输入接口; 和具有至少3度空间自由度的输入接口可操作的扩散张量成像（DTI）模块。 在一个实施例中，DTI模块可操作以计算光纤束。 该模块还可操作以识别参考体积中的一个或多个感兴趣区域（ROI），并计算或识别通过一个或多个3D ROI的纤维束。 在一个实施例中，系统支持显示穿过3D ROI的光纤束的3D立体图像。

公开(公告)号：US20050148848A1

公开(公告)日：2005-07-07

申请号：US10981058

申请日：2004-11-03

申请人： Yang Guang ,  Eugene Keong ,  Ralf Kockro

发明人： Yang Guang ,  Eugene Keong ,  Ralf Kockro

IPC分类号： A61B5/05 ,  A61B19/00 ,  G01N33/48 ,  G01N33/50 ,  G06F19/00 ,  G06T1/00 ,  G06T15/00 ,  G06T17/40 ,  G09B23/28

CPC分类号： G06T19/00 ,  G06T2210/41 ,  G06T2210/62 ,  G06T2219/028 ,  G09B23/285

摘要： Improved systems and methods for stereoscopically displaying and virtually viewing tube-like anatomical structures are presented. Stereoscopic display of such structures can provide a user with better depth perception of the structure being viewed and thus make a virtual examination more real. In exemplary embodiments according to the present invention, ray shooting, coupled with appropriate error correction techniques, can be utilized for dynamic adjustment of an eye convergence point for stereo display. In exemplary embodiments of the present invention, the correctness of a convergence point can be verified to avoid a distractive and uncomfortable visualization. Additionally, in exemplary embodiments of the present invention, convergence points in consecutive time frames can be compared. If rapid changes are detected, the system can compensate by interpolating transitional convergence points. In exemplary embodiments according to the present invention ray shooting can also be utilized to display occluded areas behind folds and protrusions in the inner colon wall. In exemplary embodiments according to the present invention, interactive display control functionalities can be mapped to a gaming-type joystick or other three-dimensional controller, freeing thereby a user from the limits of a two-dimensional computer interface device such as a standard mouse or trackball.

摘要翻译： 提出了用于立体显示和虚拟观察管状解剖结构的改进的系统和方法。 这种结构的立体显示可以为用户提供对所观察结构的更好的深度感知，从而使虚拟检查变得更真实。 在根据本发明的示例性实施例中，与适当的纠错技术相结合的射线拍摄可用于用于立体显示的眼睛会聚点的动态调整。 在本发明的示例性实施例中，可以验证收敛点的正确性，以避免分心和不舒服的可视化。 另外，在本发明的示例性实施例中，可以比较连续时间帧中的收敛点。 如果检测到快速变化，系统可以通过内插过渡收敛点进行补偿。 在根据本发明的示例性实施例中，射线射击也可用于在内结肠壁中的折叠和突起之后显示遮挡区域。 在根据本发明的示例性实施例中，交互式显示控制功能可以被映射到游戏型操纵杆或其他三维控制器，从而使用户免受诸如标准鼠标之类的二维计算机接口设备的限制， 轨迹球

公开(公告)号：US20050015005A1

公开(公告)日：2005-01-20

申请号：US10832902

申请日：2004-04-27

申请人： Ralf Kockro

发明人： Ralf Kockro

IPC分类号： A61B19/00 ,  A61B5/05 ,  A61B1/04

CPC分类号： A61B90/36 ,  A61B34/10 ,  A61B34/20 ,  A61B34/25 ,  A61B90/361 ,  A61B2034/105 ,  A61B2034/107 ,  A61B2034/2055 ,  A61B2034/2068 ,  A61B2034/2072 ,  A61B2034/252 ,  A61B2034/254 ,  A61B2090/365 ,  A61B2090/373 ,  G06F19/00

摘要： A system and method for navigation within a surgical field are presented. In exemplary embodiments according to the present invention a micro-camera can be provided in a hand-held navigation probe tracked by a tracking system. This enables navigation within an operative scene by viewing real-time images from the viewpoint of the micro-camera within the navigation probe, which are overlaid with computer generated 3D graphics depicting structures of interest generated from pre-operative scans. Various transparency settings of the camera image and the superimposed 3D graphics can enhance the depth perception, and distances between a tip of the probe and any of the superimposed 3D structures along a virtual ray extending from the probe tip can be dynamically displayed in the combined image. In exemplary embodiments of the invention a virtual interface can be displayed adjacent to the combined image on a system display, thus facilitating interaction with various navigation related functions. In exemplary embodiments according to the present invention virtual reality systems can be used to plan surgical approaches with multi-modal CT and MRI data. This allows for generating 3D structures as well as marking ideal surgical paths. The system and method presented thus enable transfer of a surgical planning scenario to a real-time view of an actual surgical field, thus enhancing navigation.

摘要翻译： 提出了一种外科手术领域的导航系统和方法。 在根据本发明的示例性实施例中，可以在跟踪系统跟踪的手持式导航探针中提供微型照相机。 这可以通过从导航探针内的微型摄像机的视点观察实时图像来实现在操作场景内的导航，其覆盖有描绘从术前扫描生成的感兴趣结构的计算机生成的3D图形。 相机图像和叠加的3D图形的各种透明度设置可以增强深度感知，并且可以在组合图像中动态地显示探针尖端与沿着从探针尖端延伸的虚拟光线的任何叠加的3D结构之间的距离 。 在本发明的示例性实施例中，可以在系统显示器上显示与组合图像相邻的虚拟接口，从而有助于与各种导航相关功能的交互。 在根据本发明的示例性实施例中，可以使用虚拟现实系统来计划具有多模态CT和MRI数据的手术方法。 这可以生成3D结构以及标记理想的手术路径。 因此，所提出的系统和方法能够将手术计划情景转移到实际外科视野的实时视图，从而增强导航。

公开(公告)号：US20050203367A1

公开(公告)日：2005-09-15

申请号：US10480490

申请日：2001-06-13

申请人： Syed Ahmed ,  Ralf Kockro

发明人： Syed Ahmed ,  Ralf Kockro

IPC分类号： A61B19/00 ,  G06F3/048 ,  G06T17/40 ,  A61B5/05

CPC分类号： G02B27/017 ,  A61B34/20 ,  A61B34/25 ,  A61B90/36 ,  A61B2034/102 ,  A61B2034/2055 ,  A61B2034/2068 ,  A61B2090/365 ,  A61B2090/368 ,  G02B2027/0134 ,  G02B2027/014 ,  G02B2027/0187

摘要： A guide system for use by a user who performs an operation in a defined threedimensional region is disclosed, the system including a data processing apparatus for generating images of the subject of the operation in co-registration with the subject, a display for displaying the images to the user, a probe having a position which is visible to the user, and a tracking unit for tracking the location of the probe by the system and transmitting that location to the data processing apparatus, the data processing apparatus being arranged, upon the user moving the probe to a selection region outside and surrounding the defined region, to generate one or more virtual buttons, each of the buttons being associated with a corresponding instruction to the system, the data processing apparatus being arranged to register a selection by the user of any of the virtual buttons, the selection including positioning of the probe in relation to the apparent position of that virtual button, and to modify the computer-generated image based on the selection.

摘要翻译： 公开了一种用于在定义的三维区域中执行操作的用户使用的引导系统，该系统包括：用于生成与被摄体共同注册的操作对象的图像的数据处理装置，用于显示图像的显示器 具有用户可见的位置的探测器和用于跟踪系统的探测位置并将该位置发送到数据处理设备的跟踪单元，数据处理设备被布置在用户身上 将探测器移动到限定区域外部和周围的选择区域，以产生一个或多个虚拟按钮，每个按钮与对系统的对应指令相关联，数据处理设备被布置为向用户注册选择 任何虚拟按钮，所述选择包括探针相对于该虚拟按钮的表观位置的定位，并且修改th e基于选择的计算机生成的图像。

公开(公告)号：US20050137477A1

公开(公告)日：2005-06-23

申请号：US10744869

申请日：2003-12-22

申请人： Ralf Kockro

发明人： Ralf Kockro

IPC分类号： A61B8/00 ,  G01S7/52 ,  G01S15/89

CPC分类号： G01S7/52074 ,  A61B8/00 ,  A61B8/4245 ,  G01S7/52071 ,  G01S15/8993

摘要： A method and system for the dynamic display of three dimensional ultrasound images is presented. In exemplary embodiments according to the present invention, the method includes acquisition of a plurality of ultrasound images with a probe whose position is tracked. Using the positional information of the probe, the plurality of images are volumetrically blended using a pre-determined time dependent dissolving process. In exemplary embodiments according to the present invention a color look up table can be used to filter each image prior to its display resulting in real-time segmentation of greyscale values and the three-dimensional visualization of the three-dimensional shape of structures of interest.

摘要翻译： 提出了三维超声图像动态显示的方法和系统。 在根据本发明的示例性实施例中，该方法包括利用其位置被跟踪的探针获取多个超声图像。 使用探针的位置信息，使用预定的时间依赖性溶解过程将多个图像体积共混。 在根据本发明的示例性实施例中，可以使用颜色查找表来在其显示之前对每个图像进行滤波，从而实现对灰度值的实时分割和感兴趣的结构的三维形状的三维可视化。