Steven H Wolff

US Patent:

6384601, May 7, 2002

Filed:

Oct 19, 1999

Appl. No.:

09/403530

Inventors:

David G. Wiesler - Bethesda MD
Han Wen - Rockville MD
Robert S. Balaban - Bethesda MD
Steven D. Wolff - New York NY

Assignee:

The United States of America as represented by the Secretary of Department of Health Human Services - Washington DC

International Classification:

G01V 300

US Classification:

324309, 324312, 324322

Abstract:

A method, and related apparatus, for suppressing the magnetic resonance signal to an experimentally adjustable depth by applying a spatially inhomogeneous field between the slice-select pulse and the data acquisition. Eliminating the signal from near surface regions allows one to shrink the field of view of an image without introducing aliasing artifacts, thereby improving the images resolution or decreasing imaging time. Experimental tests on a phantom and a human subject indicate that the depth of signal suppression may be continuously varied to depths of over 80 millimeters with modest requirements on power supplies, pulse sequences, and materials.

US Patent:

6412664, Jul 2, 2002

Filed:

Aug 17, 2000

Appl. No.:

09/640455

Inventors:

Floyd Wolff - Boca Raton FL 33496
Steven Wolff - New York NY 10021

International Classification:

B65D 3700

US Classification:

222211, 2224641, 222564, 222547, 222556, 220259, 220837, 215235

Abstract:

A cap for use in dispensing viscous liquids from containers without the accompaniment of lower viscosity liquid present in the container. The cap has a top portion with an outside surface and an inside surface and an elongated conduit formed at a pre-determined angle. The elongated conduit has an outlet and an inlet. The outlet is situated either eccentrically or concentrically on the outside surface of the top portion such that at least one point on the circumference of the top portion is greater than 10 millimeters from the edge of the inlet.

US Patent:

6577887, Jun 10, 2003

Filed:

Mar 13, 2001

Appl. No.:

09/804938

Inventors:

Floyd Wolff - Boca Raton FL 33496
Steven Wolff - New York NY 10021

International Classification:

A61B 505

US Classification:

600411, 600420, 600422

Abstract:

The apparatus and method alters the intravenous delivery of pharmaceuticals to enhance imaging of the vasculature of an animal. The apparatus includes a pressure-inducing component that is sized to attach circumferentially to an extremity of an animal thereby impeding arterial blood flow causing said pharmaceuticals to remain at selected levels within the vasculature.

US Patent:

6618605, Sep 9, 2003

Filed:

Sep 8, 1999

Appl. No.:

09/391965

Inventors:

Steven D. Wolff - New York NY
Glenn S. Slavin - Rockville MD
Thomas K. F. Foo - Rockville MD

Assignee:

General Electric Company - Schenectady NY

International Classification:

A61B 5055

US Classification:

600410, 324306, 324307, 324309, 600419

Abstract:

A method and apparatus is disclosed for MR perfusion acquisition using a notched RF saturation pulse. In acquiring such MR data, a volume of slice locations is selected in which MR data is to be acquired. Each given slice is prepared with a notched RF saturation pulse which has a stop-band between a pair of pass-bands. The stop-band is designed to not affect the spins in the next slice in which MR data is to be acquired thereby effectively increasing the TI and increasing SNR and contrast simultaneously. Since the notched saturation pulse saturates all the spins outside of the notched stop-band, the blood in the ventricular chamber is effectively saturated so that the resulting perfusion images have blood pool suppression. Additionally, the use of a 90Â presaturation RF pulse provides a high level of immunity to the effects of arrhythmias or other variations in the patients heart rate. In order to keep the stop-band, or the notch, as wide as possible to overlap the boundaries of each slice location, it is preferable to interleave the acquisition of slice locations.

US Patent:

7047062, May 16, 2006

Filed:

May 16, 2002

Appl. No.:

10/063826

Inventors:

Paul E. Licato - Wauwatosa WI, US
Steven Wolff - New York NY, US

Assignee:

GE Medical Systems Global Technology Company, LLC - Waukesha WI

International Classification:

A61B 5/05

US Classification:

600410, 324306, 324307, 324309

Abstract:

Disclosed herein is a system and method for decreasing gradient field pulse sequence duration and reducing peripheral nerve stimulation with known gradient pulse areas for a magnetic resonance imaging system. The method comprising: receiving a first desired area corresponding to a first pulse; obtaining a second desired area corresponding to a second pulse; selecting the first pulse as a nested pulse if the first desired area is smaller than the second desired area, and establishing the second pulse as a nesting pulse, otherwise selecting the second pulse as the nested pulse and establishing the first pulse as the nesting pulse. The method also includes: determining an amplitude and pulse duration for the nested pulse and ascertaining an amplitude and pulse duration for the nesting pulse. Finally, the method includes arranging a plurality of gradient field pulse sequences to include the nested pulse and the nesting pulse.

US Patent:

7953469, May 31, 2011

Filed:

Feb 1, 2008

Appl. No.:

12/024844

Inventors:

Ajit Shankaranarayanan - Mountain View CA, US
Andres Carrillo - Menlo Park CA, US
Steven D. Wolff - New York NY, US
Jean Helen Brittain - Menlo Park CA, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

A61B 5/05

US Classification:

600410, 600407, 600413

Abstract:

A system and method for MR imaging is disclosed that includes displaying a series of MR images of an ROI in real-time and localizing a slice within the ROI. The method also includes using a parallel imaging technique to acquire gated MR data from the localized slice and reconstructing a prescribed fixed number of gated MR images of the localized slice.

US Patent:

8487620, Jul 16, 2013

Filed:

Jun 16, 2010

Appl. No.:

12/816879

Inventors:

Brian Brown - Wauwatosa WI, US
Steven Wolff - New York NY, US
Kyle Johnson - Waukesha WI, US
Glenn Wells - Elm Grove WI, US
Venkat Goruganti - Pewaukee WI, US

Assignee:

Neocoil, LLC - Pewaukee WI

International Classification:

G01V 3/00

US Classification:

324318

Abstract:

The present invention discloses a modular MRI imaging system. The imaging system includes MRI radio-frequency antenna arrays separate from the patient support structure. The antenna arrays are affixed to a thin, flexible film such that they may be located next to the anatomical region of interest. In addition, multiple antenna arrays may be configured in various planar or three-dimensional arrangements to optimize the FOV and SNR. Separate patient support structures are provided that enhance ergonomics and patient stabilization. By removing the antenna from the housing, the support structures may be designed without the constraints of supporting the antenna or the associated electronics. The MRI imaging system further employs a preamplifier module. The preamplifier module houses the preamplifier and much of the other associated circuitry for each of the antennae. The preamplifier module operates to combine the signals from the antenna arrays and pass the signals to the MRI system.

US Patent:

20050245809, Nov 3, 2005

Filed:

Apr 29, 2004

Appl. No.:

10/709365

Inventors:

Steven Wolff - New York NY, US
Thomas Foo - Baltimore MD, US

Assignee:

GE MEDICAL SYSTEMS GLOBAL TECHNOLOGY COMPANY, LLC - Waukesha WI

International Classification:

A61B005/05

US Classification:

600410000

Abstract:

A method of generating a magnetic resonance image is provided, comprising subjecting a subject to a magnetic field. The subject comprised of a first tissue a second tissue and a third tissue. The method generates a first pulse sequence at a first TI time and generates a first image after the first pulse sequence. The first image has a first image first tissue magnitude, a first image second tissue magnitude, and a first image third tissue magnitude. The method then generates a second pulse sequence at a second TI time and generates a second image after the second pulse sequence. The second image has a second image first tissue magnitude, a second image second tissue magnitude, and a second image third tissue magnitude. Finally, the method generates a resultant image by combining the first image and the second image. The first image first tissue magnitude and the second image first tissue magnitude combine to form a positive resultant first tissue magnitude. The first image third tissue magnitude and the second image third tissue magnitude combine to form a negative resultant image third tissue magnitude.