Inventors list |
Assignees list |
Classification tree browser |
Top 100 Inventors |
Top 100 Assignees |
Endt
Axel Vom Endt, Erlangen DE
| Patent application number | Description | Published |
|---|---|---|
| 20090146657 | Method for processing a distortion-corrected 2d or 3d reconstruction image recorded by a magnetic resonance device - In one embodiment of the present invention, a method for processing a 2D or 3D reconstruction image is disclosed which is recorded by a magnetic resonance device, including a gradient coil that generates a gradient field, and is distortion—corrected with regard to a given non-linearity—leading to an image distortion—of the gradient field using an algorithm that processes the measurement signals at different measurement points lying in the imaging volume, which algorithm, with respect to each signal processed by it, processes the first input value describing the real gradient field given at the real measurement point of the signal, in which method, for inverse transformation of the distortion-corrected reconstruction image into a distortion-uncorrected reconstruction image, use is made of the first algorithm or a second algorithm corresponding to the first algorithm, which, with respect to each signal processed by it, is given as second input value such a value which describes a fictitious gradient field at the respective distorted measurement point at which the processed signal appears, which is increased or decreased by the non-linear field component of the real gradient field compared with the linear ideal gradient field. | 06-11-2009 |
| 20100117648 | MAGNETIC RESONANCE DEVICE COMPRISING AN ASYMMETRICAL CYLINDRICAL GRADIENT COIL AND AT LEAST ONE ASYMMETRICAL SHIM-COIL - A magnetic resonance apparatus has a cylindrical gradient coil with an x-gradient coil and a y-gradient coil that are asymmetrical relative to the z-direction of a coordinate system, the z-direction extending along a longitudinal direction of a patient receptacle. Shim coils are provided that generate magnetic fields to homogenize the basic magnetic field, produced by a cylindrical basic field magnet, in an examination volume in the patient receptacle. At least some of the shim coils are asymmetrical relative to the z-direction to minimize coupling induction between the asymmetrical x-gradient coil and y-gradient coil and the asymmetrical shim coils. | 05-13-2010 |
Axel Vom Endt, Newton, MA US
| Patent application number | Description | Published |
|---|---|---|
| 20100036237 | DETECTOR UNIT FOR ARRANGEMENT WITHIN A FIELD GENERATING UNIT OF AN MR DEVICE - A detector unit for arrangement in a field generating unit of a magnetic resonance device has an RF transmission/reception system for transmitting RF pulses into, or receiving magnetic resonance signals from, an examination volume of the field generation unit. The RF transmission/reception system surrounds a patient tunnel at a radial distance from a tunnel axis thereof, and is divided into two sub-systems located at a distance from each other along the direction of the tunnel axis, so as to form a substantially annular cavity or interstice therebetween. | 02-11-2010 |
Axel Vom Endt, Erimgen DE
| Patent application number | Description | Published |
|---|---|---|
| 20090295519 | METHOD TO DETERMINE THE DESIGN OF A BASIC MAGNET OF A MAGNETIC RESONANCE APPARATUS WITH AT LEAST ONE GRADIENT COIL SYSTEM - The method for determination of the design of the basic magnet of a magnetic resonance apparatus with at least one gradient coil system, the design of the basic magnet is determined by taking into consideration forces acting on the at least one gradient coil system that may lead to vibrations of the gradient coil system due to switching processes of the gradient coil system in the field of the basic magnet. | 12-03-2009 |