Abstract:
Es wird ein System zum Anzeigen einer Vielzahl von registrierten Bildern beschrieben. Eine erste Ansichtsfenstereinheit (1) zeigt eine Darstellung eines ersten Bilddatensatzes (4) in einem ersten Ansichtsfenster (201) an. Eine zweite Ansichtsfenstereinheit (2) zeigt eine Darstellung eines zweiten Bilddatensatzes (5) in einem zweiten Ansichtsfenster (202) an. Eine Positionsangabeeinheit (7) befähigt einen Benutzer, eine Position in dem im ersten Ansichtsfenster (201) angezeigten ersten Bilddatensatz (4) anzugeben, um eine vom Benutzer angegebene Position zu erhalten. Eine Übereinstimmungspositionsermittlungseinheit (8) ermittelt eine mit der vom Benutzer angegebenen Position übereinstimmende Position in dem zweiten Bilddatensatz (5) basierend auf Übereinstimmungsinformationen (9), die Positionen in dem ersten Bilddatensatz (4) auf hiermit übereinstimmende Positionen in dem zweiten Bilddatensatz (5) abbilden, um eine übereinstimmende Position in dem zweiten Bilddatensatz (5) zu erhalten. Die zweite Ansichtsfenstereinheit (2) zeigt eine Angabe der übereinstimmenden Position im zweiten Ansichtsfenster (202) an.
Abstract:
Various picture elements form an X-ray display may be identified and arranged as picture groups. These groups may be marked out on the display by enhanced contrast or false colors. Processing may be carried out with the aid of a logical tree where a first step (A1) may give rise to one of two possible results (B1) or (C11). The first result may give rise to several possible results (C1-10). Some of these may give rise to further results (D1-10).
Abstract:
The invention relates to a method of forming an isolated visualization of body structures from a 3D image data set, which method includes the steps of forming a binary data set in which all image elements contained in the 3D image data set are classified as image elements which are to be visualized in isolated form and image elements which are not to be visualized, where filtering of the image values is performed by means of limit values of the image values and all image elements of the binary data set of image structures contained in the 3D image data set which are smaller than a predetermined size are selected, of forming a filtered data set by entering the image values of the original 3D image data set for the image elements which are characterized as image elements to be visualized in isolated form in the binary data set, and of forming the visualization of the isolated body structure from the filtered data set. The invention also relates to a device for carrying out the described method and also to programming means which carry out the described steps when executed on a computer.
Abstract:
Volume measurement of for example a tumor in a 3D image dataset is an important and often performed task. The problem is to segment the tumor out of this volume in order to measure its dimensions. This problem is complicated by the fact that the tumors are often connected to vessels and other organs. According to the present invention, an automated method and corresponding device and computer software are provided, which analyze a volume of interest around a singled out tumor, and which, by virtue of a 3D distance transform and a region drawing scheme advantageously allow to automatically segment a tumor out of a given volume.
Abstract:
A method for reformatting image data includes obtaining volumetric image data indicative of an anatomical structure of interest, identifying a surface of interest of the anatomical structure of interest in the volumetric image data, identifying a thickness for a sub- volume of interest of the volumetric image data, shaping the sub-volume of interest such that at least one of its sides follows the surface of interest, and generating, via a processor, a maximum intensity projection (MIP) or direct volume rendering (DVR) based on the identified surface of interest and the shaped sub-volume of interest.
Abstract:
The present invention describes a way to quantify the trapped-air disease and how to allow efficient user interaction for inspection via a graphical user interface. The results of the invention may also be used for rapid and accurate diagnosis of trapped air disease. An apparatus, graphical user interface, computer-readable medium and use are also provided.
Abstract:
A method, system, and program product are provided for user-steered, on-the fly path planning in an image-guided endoscopic procedure, comprising: presenting, on a display, a 2D sectional image showing a region of interest from a preoperative CT scan; defining a control point on the 2D sectional image within a patient's body lumen responsive to a first user input; centering the control point; adjusting a viewing angle about the control point to show a longitudinal section of the body lumen responsive to a second user input; identifying a second point on a planned path within the body lumen responsive to a third user input; extending a planned path connecting the control point and the second point; redefining the second point as a new control point; and repeating the presenting adjusting, identifying, extending, and the redefining steps until the planned path reaches a procedure starting point within the patient's body.
Abstract:
A method includes obtaining image data generated by an imaging system (100), generating data indicative of a degree to which each of a plurality of voxels of the image data corresponds to one or more predetermined geometrical features, wherein each geometrical feature is assigned a different color, generating a signal indicative of a single color value for each of the plurality of voxels based on the degree and the colors, generating a volumetric rending of the image data based on the signal, generating a link between voxels of the volumetric rendering and voxels of the image data, and visually presenting the image data and the volumetric rendering concurrently.