Michael L Berggren

US Patent:

6636584, Oct 21, 2003

Filed:

Dec 17, 2001

Appl. No.:

10/024035

Inventors:

Steven A. Johnson - Salt Lake City UT
David T. Borup - Salt Lake City UT
James Wiskin - Salt Lake City UT
Michael J. Berggren - Salt Lake City UT

Assignee:

TechniScan, Inc. - Salt Lake City UT

International Classification:

G01N 2300

US Classification:

378901, 378 62, 378 37, 600437

Abstract:

A method for increasing the speed of the parabolic marching method by about a factor of 256. This increase in speed can be used to accomplish a number of important objectives. Firstly, the speed can be used to collect data to form true 3-D images or 3-D assembled from 2-D slices. Speed allows larger images to be made. Secondly, the frequency of operation can be increased to 5 MHz to match the operating frequency of reflection tomography. This allow the improved imaging of speed of sound which in turn is used to correct errors in focusing delays in reflection tomography imaging. This allows reflection tomography to reach or closely approach its theoretical spatial resolution of  to  wave lengths. A third benefit of increasing the operating frequency of inverse scattering to 5 MHz is the improved out of topographic plane spatial resolution. This improves the ability to detect small lesions.

US Patent:

7570742, Aug 4, 2009

Filed:

Jul 7, 2003

Appl. No.:

10/615569

Inventors:

Steven A. Johnson - Salt Lake City UT, US
David T. Borup - Salt Lake City UT, US
James Wiskin - Salt Lake City UT, US
Michael J. Berggren - Salt Lake City UT, US

Assignee:

Techniscan, Inc. - Salt Lake City UT

International Classification:

G01N 23/00

US Classification:

378901, 378 8, 378 90, 378 37, 378 62, 378 87, 378 96, 378 98, 600437

Abstract:

This invention describes a method for increasing the speed of the parabolic marching method by about a factor of 256. This increase in speed can be used to accomplish a number of important objectives. Firstly, the speed can be used to collect data to form true 3-D images or 3-D assembled from 2-D slices. Speed allows larger images to be made. Secondly, the frequency of operation can be increased to 5 MHz to match the operating frequency of reflection tomography. This allow the improved imaging of speed of sound which in turn is used to correct errors in focusing delays in reflection tomography imaging. This allows reflection tomography to reach or closely approach its theoretical spatial resolution of to wave lengths. A third benefit of increasing the operating frequency of inverse scattering to 5 MHz is the improved out of topographic plane spatial resolution. This improves the ability to detect small lesions.

US Patent:

7684846, Mar 23, 2010

Filed:

Sep 9, 2005

Appl. No.:

11/222541

Inventors:

Steven A. Johnson - Salt Lake City UT, US
David T. Borup - Salt Lake City UT, US
James Wiskin - Salt Lake City UT, US
Michael J. Berggren - Salt Lake City UT, US

Assignee:

Techniscan, Inc - Salt Lake City UT

International Classification:

A61B 5/00
G01N 23/00

US Classification:

600407, 181101

Abstract:

A transmission wave field imaging method, comprising the transmission of an incident wave field into an object, the incident wave field propagating into the object and, at least, partially scattering. Also includes the measuring of a wave field transmitted, at least in part, through an object to obtain a measured wave field, the measured wave field based, in part, on the incident wave field and the object. Additionally, the processing of the measured wave field utilizing a recursive reconstruction algorithm to generate an image data set representing at least one image of the object.

US Patent:

7771360, Aug 10, 2010

Filed:

Apr 8, 2004

Appl. No.:

10/821407

Inventors:

Steven A. Johnson - Salt Lake City UT, US
Michael Berggren - Salt Lake City UT, US
David T. Borup - Salt Lake City UT, US
Barry K. Hanover - Salt Lake City UT, US
Rita Hanover - Salt Lake City UT, US
Martin Kammeyer - Sandy UT, US
Scott Olsen - Salt Lake City UT, US
Jeffrey Pattee - Salt Lake City UT, US
Frank L. Setinsek - Fruit Heights UT, US
Kortlan D. Stewart - Salt Lake City UT, US
James Wiskin - Salt Lake City UT, US

Assignee:

Techniscan, Inc. - Salt Lake City UT

International Classification:

A61B 8/00

US Classification:

600459, 600437

Abstract:

A breast scanning system scans a breast of a patient with transducer arrays that transmit and receive ultrasound signals in a bath containing a medium, such as a liquid. A table is disposable over the bath to receive the patient thereon, and has an aperture formed in the table and positionable over the bath to receive the breast of the patient pendent therethrough and into the bath. The table is linearly vertically displaceable with respect to the bath. The system includes a preconditioning tank to precondition the liquid prior to being introduced into the bath. The bath includes means for securing the breast within the bath.

US Patent:

7841982, Nov 30, 2010

Filed:

Sep 9, 2005

Appl. No.:

11/223084

Inventors:

Steven A. Johnson - Salt Lake City UT, US
David T. Borup - Salt Lake City UT, US
James Wiskin - Salt Lake City UT, US
Michael J. Berggren - Salt Lake City UT, US

Assignee:

Techniscan, Inc. - Salt Lake City UT

International Classification:

A61B 5/00
G01N 23/00

US Classification:

600437, 600442, 600443, 600448, 181101

Abstract:

A transmission wave field imaging method, comprising the transmission of an incident wave field into an object, the incident wave field propagating into the object and, at least, partially scattering. Also includes the measuring of a wave field transmitted, at least in part, through an object to obtain a measured wave field, the measured wave field based, in part, on the incident wave field and the object. Additionally, the processing of the measured wave field utilizing a parabolic approximation reconstruction algorithm to generate an image data set representing at least one image of the object.

US Patent:

8366617, Feb 5, 2013

Filed:

May 14, 2008

Appl. No.:

12/152631

Inventors:

Steven A. Johnson - Salt Lake City UT, US
Michael J. Berggren - Salt Lake City UT, US
David T. Borup - Salt Lake City UT, US
Barry K. Hanover - Salt Lake City UT, US
James W. Wiskin - Salt Lake City UT, US
Jeff Pattee - Salt Lake City UT, US

Assignee:

CVUS Clinical Trials, LLC - Salt Lake City UT

International Classification:

A61B 8/00

US Classification:

600437, 600459

Abstract:

A breast scanning system configured to scan a breast of a patient includes a table configured to receive the patient thereon. The table has an aperture formed therein configured to receive the breast of the patient pendant therethrough and positionable over and into a bath configured to contain a medium. An armature is movably disposable in the bath. The armature carries transducer arrays that are disposable in the bath, and configured to transmit and receive acoustic and/or ultrasound signals. A manual control is operatively coupled to the armature to manually move the armature and thus the transducer arrays within the bath.

US Patent:

20060287596, Dec 21, 2006

Filed:

May 17, 2006

Appl. No.:

11/436989

Inventors:

Steven Johnson - Salt Lake City UT, US
James Wiskin - Salt Lake City UT, US
Michael Berggren - Salt Lake City UT, US

International Classification:

A61B 8/00

US Classification:

600437000

Abstract:

A transmission wave field imaging method, comprising the transmission of an incident wave field into an object, the incident wave field propagating into the object and, at least, partially scattering. Also includes the measuring of a wave field transmitted, at least in part, through an object to obtain a measured wave field, the measured wave field based, in part, on the incident wave field and the object. Additionally, the processing of the measured wave field utilizing a parabolic approximation reconstruction algorithm to generate an image data set representing at least one image of the object.

US Patent:

20060293597, Dec 28, 2006

Filed:

May 17, 2006

Appl. No.:

11/437001

Inventors:

Steven Johnson - Sal Lake City UT, US
David Borup - Salt Lake City UT, US
James Wiskin - Salt Lake City UT, US
Michael Berggren - Salt Lake City UT, US
Frank Natterer - Muenster, DE
F. Wubbeling - Muenster, DE
Yongzhi Zhang - Madison WI, US
Douglas Christensen - Salt Lake City UT, US
Frank Stenger - Salt Lake City UT, US

International Classification:

A61B 8/00

US Classification:

600437000

Abstract:

A transmission wave field imaging method, comprising the transmission of an incident wave field into an object, the incident wave field propagating into the object and, at least, partially scattering. Also includes the measuring of a wave field transmitted, at least in part, through an object to obtain a measured wave field, the measured wave field based, in part, on the incident wave field and the object. Additionally, the processing of the measured wave field utilizing a parabolic approximation reconstruction algorithm to generate an image data set representing at least one image of the object.