Bo J Pettersson

6348793, Feb 19, 2002

Nov 6, 2000

09/706963

William Balloni - Menomonee Falls WI
Josef Debbins - Waukesha WI
Robert Haworth - Brookfield WI
Paul Licato - Wauwatosa WI
Graeme C. McKinnon - Hartland WI
Bo J. Pettersson - Wauwatosa WI
Lawrence Ploetz - Brookfield WI
Mark Radick - Muskego WI

GE Medical Systems Global Technology, Company, LLC - Waukesha WI

G01V 300

324309, 324322

A medical imaging system includes a workstation for receiving operator inputs that prescribe a scan and a plurality of servers which control the acquisition of image data and the reconstruction of prescribed images. The workstation is programmed in Javaâ to produce scan descriptions that are downloaded to the servers prior to run time using a serialization mechanism.

6564081, May 13, 2003

Oct 31, 2001

09/682913

Frederick J. Frigo - Waukesha WI
Bruce D. Collick - Madison WI
Louis M. Frigo - Brookfield WI
Michael R. Hartley - Pewaukee WI
Bo Pettersson - Waukesha WI

GE Medical Systems Global Technology Co. LLC - Waukesha WI

A61B 5055

600410, 324307, 324309

The present invention provides a system and method of increasing the sampling rate for MR data acquisition. By implementing ensemble sampling techniques, the present invention provides higher data sampling rates that are useful for several MR data acquisition applications including Echo Planar Imaging, Functional Magnetic Resonance Imaging, and Sensitivity Encoding Imaging (SENSE) techniques. By multiplying an MR signal by a series of pure sinusoids having the same frequency but shifted by an incremental phase, the MR signal may be separated into a number of channels which can be sampled at lower rates by analog-to-digital converters. The output from the converters may then be reconstructed using one of a number of interpolation techniques to create a single digital channel with increased bandwidth. The single channel with increased bandwidth may then be used to acquire MR data with an improved sampling rate.

6675036, Jan 6, 2004

Jul 18, 2001

09/682091

Kevin Scott Kreger - Milwaukee WI
Bo Johan Pettersson - Wauwatosa WI

GE Medical Systems, Inc. - Waukesha WI

A61B 505

600413

A diagnostic medical imaging device including a signal processor that includes an adaptive filter noise canceler that is used to reduce the additive electrical noise on low power bio-potential signals caused by a patients respiration. A noise reference signal associated with the patients respiration is adaptively filtered with only minimal time delay and subtracted from a noisy bio-potential signal that is acquired from the patient. The resultant signal is a clean bio-potential signal that may be used for, among other things, triggering an MRI scan. The noise reference signal is received by an adaptive filter having adjustable filter coefficients. The filter coefficients are adjusted using the clean bio-potential signal that acts an error signal.

6845261, Jan 18, 2005

Apr 23, 2001

09/840361

Bo Pettersson - Wauwatosa WI, US
Robert Holden Haworth - Brookfield WI, US

General Electric Company - Schenectady NY

A61B 316

600413

An MR system correlates MR images with acquired physiological data. MR image data and physiological data is acquired through two independent pipelines. Both pipelines range from analog to digital conversion to image or data display. The pipelines are synchronized by triggers calculated from data contained in the physiological pipeline which are then used to trigger the acquisition of data in the MR image pipeline. Another embodiment includes time synchronization of a distributed acquisition and processing system having the ability to correlate physiological and MR data using a common time base and the ability to selectively store physiological data. Simplified network time protocol is used to synchronize timers and a separate data conduit is used for sending physiological data to the data store process. This supports different modes of synchronization between acquisition and the physiological signal.