Tomtec Imaging Systems Gmbh

Siemens Medical Solutions Usa, Inc.

Georg Schummers

Marcus Schreckenberg

Christian Galuschky

Horst Joachim Mayer

Helene C Houle

Bernhard Mumm

Alexander Rossmanith

Rolf Baumann

Jens Stockhausen

Dieter Bayer

Martin Hyca

Rolf Bauman

The invention relates to a method for recording medical images, in particular ultrasound images, of a moving object, in particular of a heart, said method comprising the following steps: generating a movement signal that dynamically represents the state of movement of the moving object, identifying the phase position and the frequency of the moving object on the basis of the movement signal, reconstructing the images on the basis of the phase position and of the frequency and/or carrying out at least one scan of the moving object, with the recording times being adjusted according to the phase position and the frequency of the moving object.

Method for recording medical images of a moving object

The present invention relates to a method and device for automatical segmentation of medical images of a non-planar surface of an object, in particular of a heart valve, including detecting a surface boundary which delimits the non-planar surface of the object, creating a model surface, which is spanned between the surface boundary, correcting the model surface by means of distance information containing information about the distance between the model surface and the non-planar surface of the object, until a corrected model surface is generated, and depicting the corrected model surface, where the correction of the model surface is preferably carried out by means of three- or four-dimensional image data sets, by orienting the three-dimensional volume-rendering of the object essentially perpendicular to the model surface, so that the information about the distance between the model surface and the non-planar surface of the object can be evaluated, until the corrected model surface has been produced.

Method and device for segmenting medical image data

The invention relates to a device and to a method for adaptive three-dimensional derivation of a proximal isokinetic shell of a proximal flow convergence zone that forms in an observation area in a moving fluid, wherein the magnitude of the velocity of the fluid at each point of the proximal isokinetic shell is identical and equal to a velocity reference value, the method including: a) preparing locally distributed velocity measurements in a surrounding area of the observation area, the measurements representing at least one directional component of the local velocity of the fluid in a respective measurement direction, b) preparing an approximation surface as an initial proximal isokinetic shell) in such a way that the entire flow, at least substantially, in the flow convergence zone penetrates the approximation surface, c) establishing a plurality of approximation points on the approximation surface, d) determining the respective velocity measurements at the respective approximation points, e) calculating a corrected velocity (v) at each approximation point as a function of the velocity measurement indicated there, the respective measurement direction; and the respective surface normal, f) determining a correction direction by comparing the corrected (v) velocity with the velocity reference value, g) optionally shifting the approximation points in the respective correction direction to new positions, h) acquiring a new approximation surface such that the same at least approaches the new positions of the approximation points, and i) repeating steps c) through h) until the change of the new approximation surface is sufficiently minimal compared to the old approximation surface.

Three-dimensional derivation of a proximal isokinetic shell of a proximal flow convergence zone and three-dimensional PISA flow measurement

The invention relates to a method and device for navigating on a vision plane () in a multidimensional image data set (), wherein the intersection angle and degree of freedom () of the vision plane () displacement correspond to the degree of freedom of a sample () displacement, in particular an ultrasound transducer () during an interactive image producing examination. Said invention also relates to a method and device for carrying out measurements in dynamic image data, wherein said method consists in stopping, for a predefined time interval, a sequence reproduction when a frame (Fp) is interesting, thereby enabling a user to carry out measurements.

Method and device for navigating and measuring in a multidimensional image data set

The invention relates to a device, a method and a computer program for evaluating images of the heart that have been captured by means of a medical imaging method. According to said method, at least two data records containing functional values, which describe the ventricular wall activity, are produced in a random format, are converted into a uniform format and the data records in the uniform format are compared with one another or calculated.

Method, device, and computer programme for evaluating images of a cavity

The present invention relates to a method, a device and a computer program product for evaluating medical image data sets, which consists of two-dimensional section images, in particular MR images, wherein a plurality of two-dimensional cross-sections (K, K, . . . Kn) and at least one two-dimensional longitudinal section (L) of a target region () of a human or animal body are recorded and stored, a longitudinal axis () and points of intersection () are determined at the points at which the longitudinal axis () extends through the plurality of two-dimensional cross-sections (K, K. . . Kn) and a reduced data volume () is generated, which is composed of partial cross-sections (k, k, . . . kn), which are generated by means of the points of intersection () and scaling factors (a, a, b, b) from the plurality of two-dimensional cross-sections (K, K, . . . Kn).

Method, device and computer program product for evaluating medical image data sets

The invention relates to a method and device for reconstructing two-dimensional sectional images from a three- or four-dimensional image data set of an object, for example the left ventricle. The method comprises the steps of calculating an anatomical long axis through the object, such that the length and/or shape of the anatomical long axis is adapted to the length and/or shape of the object, and defining a series of sectional planes perpendicular or parallel to the anatomical long axis, and calculating and displaying sectional images corresponding to the sectional planes.

Method and device for reconstructing two-dimensional sectional images

Rotations at multiple longitudinal levels (e.g., rotations from different short axis views) are determined. Three-dimensional representations are generated as a function of the rotations, such as distorting the representation to show rotation and/or modulating the display values as a function of the rotations. Twist and/or torsion of the heart may be calculated from the rotations.

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Munich, Germany

Georg Schummers