Siemens Aktiengesellschaft

Richard Hausmann

Edgar Mueller

Gerhard Laub

Fritz Peter

An imaging system for displaying image information that has been acquired by a medical diagnostic imaging device, has at least one projection surface, to which a projection device is allocated for purposes of reproducing image information on the projection surface. For controlling the reproduction of the image information, an optical detector detects gestures of an operator, and a control unit evaluates the output data of the detector for controlling the reproduction of the image information.

Imaging system for displaying image information that has been acquired by means of a medical diagnostic imaging device

In a method and apparatus for obtaining a magnetic resonance image from a number of slices of an examination subject, a survey image is generated perpendicular to desired slices which are to be imaged, and the desired slices are graphically positioned within the survey image. A three-dimensional data set is then obtained which includes the desired slices, and the desired slices are reconstructed from the three-dimensional data set, thereby obtaining image data. An image of the desired slices is then displayed using the image data.

Method and apparatus for obtaining a magnetic resonance image from a

For shortening the measuring time to obtain an image identifying blood flow in a subject using magnetic resonance imaging, the number of phase-coding steps is reduced compared to a number of steps required for generating a quadratic observation window, given a constant, maximum amplitude of the phase-coding gradient. The reduction is to such an extent that only the blood vessel under observation is essentially acquired in phase-coding direction. Neighboring regions are saturated in order to avoid image artifacts. Given a correspondingly low number of phase-coding steps, a measurement of blood flow is possible in real-time presentation or, given an ECG triggered measuring sequence, a measurement of blood flow is possible in a greatly shortened overall measuring time.

Method for spatially resolved measurement of blood flow using nuclear

For obtaining data in phase contrast MR angiography, which data is sensitive to flow in a sample in three-orthogonal directions, a sequence with four steps is applied to a sample. In the first step, spins are flow encoded with a positive polarity in all three directions. During the three further steps, flow encoding is inverted in one direction and kept positive in all other directions, with the direction having the inverted polarity being different in all three of the further steps. A raw data set for each of the directions is obtained by complex subtraction of the signals obtained by one of the further steps and of the signals obtained by the first step.

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Erlangen, Germany

Richard Hausmann