Guenter F Hahn

7825383, Nov 2, 2010

Sep 21, 2006

11/524798

A Hans Vija - Evanston IL, US
James T. Chapman - Glen Ellyn IL, US
Peggy Hawman - Schaumburg IL, US
Ansgar Graw - Chicago IL, US
John Thomas Pawlak - Villa Park IL, US
Guenter Hahn - Hoffman Estates IL, US

Siemens Medical Solutions USA, Inc. - Malvern PA

G01T 1/166

25036305, 25036304, 378 11, 378 17, 378175

A mobile detector system for use in the detection of radiation photons. The detector system includes an exterior casing, having an internal area. The internal area has an interior periphery and an exterior periphery, at least one rail, at least one mobile camera, that is movably mounted on the at least one rail, and at least one motor. The motor drives at least one mobile camera, and the at least one mobile camera is movable along at least one rail within the exterior casing, to a plurality of radiation receiving positions.

7863574, Jan 4, 2011

Jul 16, 2009

12/503963

Guenter Hahn - Barrington IL, US
Alexander Hans Vija - Evanston IL, US

Siemens Medical Solutions USA, Inc. - Malvern PA

G01T 1/166

25036305

A system and method is provided for performing multimodal imaging of an object. The system and method includes performing spatio-temporal detection of transmission CT data of a fan X-ray beam, performing, and simultaneously with the spatio-temporal detection of transmission CT data, spatio-temporal detection of emission nuclear imaging data emitted from the object with a propagation direction across the propagation direction of the fan X-ray beam. The system and method further includes identifying at least two zones in the object based on the transmission CT data, reconstructing an image object from the emission nuclear imaging data under the constraint that respective portions of detected nuclear events are associated with selected zones, and outputting data representative of the image object.

8350222, Jan 8, 2013

Nov 3, 2010

12/939036

Alexander Hans Vija - Evanston IL, US
Steffen Kappler - Effeltrich, DE
Guenter Hahn - Barrington IL, US

Siemens Medical Solutions USA, Inc. - Malvern PA
Siemens Aktiengesellschaft - Munich

G01T 1/164

25036305

An imaging system includes interleaved emission detectors and transmission detectors. Emission detectors and transmission detectors can be interleaved along the axis of relative patient motion. Emission detectors and transmission detectors can be interleaved orthogonal to the axis of relative patient motion. Emission detectors can be single photon emission computed tomography detectors and the transmission detectors can be x-ray computed tomography detectors.

20070238950, Oct 11, 2007

Mar 24, 2006

11/388894

A. Vija - Evanston IL, US
Guenter Hahn - Hoffman Estates IL, US
Steve Quam - Carpentersville IL, US
Markus Lusser - Cary IL, US

A61B 5/05

600407000

A multi-modality diagnostic imaging system includes a first imaging subsystem, such as a computed tomographic (CT) system, for performing a first imaging procedure on a subject. The first imaging system has a gantry that slides along rails. A second imaging subsystem, such as a nuclear medicine system (NUC), performs a second imaging procedure on a subject. The second imaging subsystem is separate from the first imaging system, but in the same room. The second imaging subsystem has a gantry or is gantryless. A patient couch supports a subject. The patient couch is supported on a couch support having vertical adjustment and horizontally fixed. In this manner, the patient is maintained in the same position for multiple types of scans using the same couch support without horizontal translation of the patient couch and patient.

20100014730, Jan 21, 2010

Feb 11, 2009

12/369159

Guenter Hahn - Barrington IL, US
Alexander Hans Vija - Evanston IL, US

Siemens Medical Solutions USA, Inc. - Malvern PA

G06K 9/00

382131, 382128

Computer-implemented methods of reconstructing an image object for a measured object in object space from image data in data space include causing a computer to execute instructions for providing zonal information separating the object space into at least two zones, providing at least two zonal image objects, each zonal image object being associated with one of the at least two zones, reconstructing the image object using a data model derived from forward projecting the zonal image objects into data space, wherein the contribution of each zonal image object to the data model is weighted according to a zonal scaling factor, and outputting the image object.

20120022362, Jan 26, 2012

Jul 20, 2011

13/186933

James Frank Caruba - Bartlett IL, US
Guenter Hahn - Barrington IL, US

SIEMENS MEDICAL SOLUTIONS USA, INC. - Malvern PA

A61B 5/055
A61B 6/00

600411

An integrated magnetic resonance (MR) and positron emission tomography (PET) system includes an MR scanner including a magnet that defines an opening in which a subject is positioned, a set of PET detectors disposed between the opening and the magnet, and a plurality of data processing units, each data processing unit being configured for communication with a respective one or more of the PET detectors of the set of PET detectors. Each data processing unit includes an RF shield housing, and the RF shield housings of the plurality of data processing units are disposed in a symmetrical arrangement relative to the opening.

54486092, Sep 5, 1995

Aug 20, 1993

8/107806

John L. Couch - San Francisco CA
Horst Bruening - Walnut Creek CA
Guenter Hahn - Menlo Park CA

Siemens Aktiengesellschaft - Munich
Imatron, Inc. - So. San Francisco CA

H05G 160

378 19

In a computed tomography X-ray system, the number of A/D converters required to digitize detector output signals is reduced without degrading the resultant tomographic image. This hardware reduction results from combining certain detector output signals into a pseudo detector having a single output. The detector output signals thus combined represent data corresponding to X-ray beams having substantially the same Radon radius. Preferably such X-ray beams also traverse substantially the same region of the CT system's reconstruction circle. Where the pseudo detector includes the output signals read from N sequentially scanned detectors D. sub. i, where i=1 denotes the first read detector and i=N the last read detector, the output of each detector D. sub. i is delayed a time (N-i). tau. , and the thus delayed outputs are summed together to provide the pseudo detector output.

20140316258, Oct 23, 2014

Apr 23, 2013

13/868256

Guenter Hahn - Barrington IL, US
James Frank Caruba - Bartlett IL, US

SIEMENS MEDICAL SOLUTIONS USA, INC. - Malvern PA

A61B 6/03
A61B 6/00

600427, 600425

A system includes a gantry, a first positron emission tomography (PET) section including a first detector ring oriented about an axis, and a second PET section supported by the gantry and including a second detector ring oriented about the axis. The gantry is adjustable to move the second PET section relative to the first PET section.