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Brau
Anja Brau, Menlo Park, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20100220909 | METHOD AND APPARATUS FOR REDUCING IMAGE ARTIFACTS - A method and apparatus are provided for reducing motion related imaging artifacts. The method includes determining an internal motion for of two regions of the object, each region having a different level of motion, scanning the first region using a first scan protocol based on the motion, scanning a second region using a second different scan protocol based on the motion, and generating an image of the object based on the first and second regions. | 09-02-2010 |
Anja Christina Sophie Brau, Menlo Park, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20080279433 | METHOD AND APPARATUS FOR MULTI-COIL MAGNETIC RESONANCE IMAGING - A method for determining weights (or coefficients) for synthesizing k-space data for autocalibrated parallel imaging (API) combines training data sets (including k-space data such as autocalibrating signals (ACS)) acquired at multiple successive time points. Combining training data sets from multiple successive time points together to determine a set of weights increases the accuracy of the calculated weights. The weights may be applied to k-space data from a single or multiple time points. The method retains the phase information of the individual time point images and may thus be applied, for example, to phase-sensitive multi-point imaging such as chemical species separation studies. | 11-13-2008 |
Anja C.s. Brau, Menlo Park, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20080297152 | SYSTEM AND METHOD OF PARALLEL IMAGING WITH CALIBRATION TO A SEPARATE COIL - An RF coil assembly includes a plurality of RF source coils and an RF target coil separate from the plurality of RF source coils. A computer is programmed to acquire MR data of an imaging object from each of the plurality of RF source coils and to acquire MR data of the imaging object from the RF target coil. The computer is further programmed to calculate a set of weights based on a relationship between MR data acquired from each RF source coil and MR data acquired from the RF target coil and to reconstruct an image based on an application of the set of weights to at least a portion of the MR data acquired from each of the plurality of RF source coils. | 12-04-2008 |
| 20090134872 | METHOD AND APPARATUS OF MULTI-COIL MR IMAGING WITH HYBRID SPACE CALIBRATION - The present invention provides a system and method for parallel imaging that performs auto-calibrating reconstructions with a 2D (for 2D imaging) or 3D kernel (for 3D imaging) that exploits the computational efficiencies available when operating in certain data “domains” or “spaces”. The reconstruction process of multi-coil data is separated into a “training phase” and an “application phase” in which reconstruction weights are applied to acquired data to synthesize (replace) missing data. The choice of data space, i.e., k-space, hybrid space, or image space, in which each step occurs is independently optimized to reduce total reconstruction time for a given imaging application. As such, the invention retains the image quality benefits of using a 2D k-space kernel without the computational burden of applying a 2D k-space convolution kernel. | 05-28-2009 |
| 20100244825 | System And Method Of Parallel Imaging With Calibration To A Virtual Coil - A method for generating a magnetic resonance (MR) image includes acquiring calibration data from each of a plurality of RF source coils. Calibration data for a virtual coil is generated based on the calibration data from the plurality of RF source coils and a set of synthesis weights is generated based on the calibration data from the plurality of RF source coils and the calibration data for the virtual coil. Accelerated MR data is acquired from each of the plurality of RF source coils. An image can be reconstructed based on an application of the set of synthesis weights to the accelerated MR data from the plurality of RF source coils. | 09-30-2010 |
Anja C. S. Brau, Menlo Park, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20080303521 | SYSTEM AND METHOD FOR ACCELERATED MAGNETIC RESONANCE PARALLEL IMAGING - A system and method for MR imaging includes the use of a form of autocalibrated parallel imaging. By combining a segmented, rotated acquisition trajectory with autocalibration parallel imaging (API), the system and method can achieve improved motion insensitivity while maintaining the benefits of accelerated acquisition due to parallel imaging. In various embodiments, calibration values from a set of reference data or from another set of imaging data can be used in determining reconstruction weights for a given k-space data set. Thus, separate calibration data need not necessarily be acquired for each set of imaging data. | 12-11-2008 |
Josef Brau, Muenchen DE
| Patent application number | Description | Published |
|---|---|---|
| 20100266294 | Multi-Channel Optical Rotary Transmission Device with High Return Loss - An optical rotating data transmission device comprises a first collimator arrangement for coupling-on first light-waveguides, and a second collimator arrangement for coupling-on second light-waveguides, which is supported to be rotatable relative to the first collimator arrangement about a rotation axis. A Dove prism is provided between the collimator arrangements as a derotating element. Furthermore, the collimator arrangements pre provided with adapter elements having rotationally symmetrical conical faces. Prism adapter elements are disposed on the end faces of the Dove prism and have prism adapter elements on the sides facing the collimator arrangements. These also have rotationally symmetrical conical faces with a surface configuration that is inverse to that of the adapter elements of the collimator arrangements. | 10-21-2010 |
Salvador A. Brau, Los Angeles, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20080300595 | Encasement prevention barrier for use in anterior lumbar surgery - A flexible piece of barrier material for use in preventing or minimizing adhesions and fibrous attachments following anterior lumbar surgery. In one embodiment, the barrier structure comprises a multiple level device shaped as a generally wider tongue to function as a barrier at or above the L4-5 level, and a generally narrower lower section to function as a barrier at or below the L5-S1 level. The structure also can include a recessed waist section along an edge opposite the tongue to allow for easier placement in the L4-5 area. In another embodiment, a single level barrier for use at or above L4-5 is shaped as a tongue with a tapered outer extension to allow the barrier to extend laterally onto the psoas muscle to provide for identification of the barrier upon reoperation. | 12-04-2008 |