Mark X Zou

US Patent:

6624633, Sep 23, 2003

Filed:

Mar 26, 1999

Appl. No.:

09/277116

Inventors:

Mark X. Zou - Chesterland OH
Thomas Stickle - Willoughby Hills OH
James J. Wrenn - Shaker Heights OH

Assignee:

USA Instruments, Inc. - Aurora OH

International Classification:

G01V 300

US Classification:

324318, 324322

Abstract:

An MRI array coil is formed from a disjunct top coil array and bottom array. Paired top and bottom loop coils image thicker portions of a subject and paired top loop-coils and bottom saddle coils image thinner portions of the subject.

US Patent:

6650926, Nov 18, 2003

Filed:

Mar 28, 2002

Appl. No.:

10/108834

Inventors:

Pei Hsuon Chan - Aurora OH
Mark Xueming Zou - Aurora OH

Assignee:

USA Instruments, Inc. - Aurora OH

International Classification:

A61B 5055

US Classification:

600422, 324318

Abstract:

A MRI array coil includes a first anterior array and a second anterior array where the first and second anterior arrays each have a rigid longitudinal support, the supports being hingingly joined; and a first posterior array and a second posterior array. The first arrays are adapted to image a first volume of interest and the second arrays are adapted to image a second volume of interest, where the volumes of interest are longitudinally displaced.

US Patent:

6750653, Jun 15, 2004

Filed:

Apr 3, 2002

Appl. No.:

10/115527

Inventors:

Mark X. Zou - Aurora OH
Jie Wang - Hudson OH

Assignee:

USA Instruments, Inc. - Aurora OH

International Classification:

G01V 300

US Classification:

324318, 324322, 600422

Abstract:

A MRI RF coil for use on a human leg having a knee, ankle and foot. The coil includes a knee coil section and a foot/ankle coil section. The sections are configurable into a boot-like structure.

US Patent:

6768303, Jul 27, 2004

Filed:

Mar 15, 2002

Appl. No.:

10/098268

Inventors:

Sunyu Su - Hudson OH
Mark Xueming Zou - Aurora OH

Assignee:

General Electric Company - Schenectady NY

International Classification:

G01V 300

US Classification:

324309, 324318

Abstract:

A MRI RF coil includes a first solenoidal section, a second solenoidal section, and a third solenoidal section. The first section is between the second and third sections. The first section has a counter-rotational orientation with respect to the second and third sections.

US Patent:

6784665, Aug 31, 2004

Filed:

Nov 19, 2002

Appl. No.:

10/299449

Inventors:

Pei Hsuon Chan - Aurora OH
Mark Xueming Zou - Aurora OH
Scott Anthony Masiella - Silver Lake OH

Assignee:

General Electric Company - Schenectady NY

International Classification:

G01V 300

US Classification:

324318, 324309

Abstract:

A MRI array coil for imaging a patient having a head, and a torso, includes a base; a left handle extending from the base; a left head coil array attached to the left handle for proximity to the head; a right handle extending from the base; and a right head coil array mounted on the right handle for proximity to the head.

US Patent:

6788057, Sep 7, 2004

Filed:

Feb 22, 2002

Appl. No.:

10/080730

Inventors:

Labros S. Petropoulos - Solon OH
Mark Xueming Zou - Aurora OH

Assignee:

General Electric Company - Schenectady NY

International Classification:

G01V 300

US Classification:

324318, 324309

Abstract:

A MRI gradient coil set includes a uniplanar Z-gradient coil, a biplanar X-gradient coil, and a biplanar Y-gradient coil. The coil set provides an open Z-axis face.

US Patent:

6850065, Feb 1, 2005

Filed:

Jul 26, 2002

Appl. No.:

10/205794

Inventors:

Hiroyuki Fujita - Highland Heights OH, US
Mark Xueming Zou - Aurora OH, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

G01V 300

US Classification:

324318

Abstract:

A RF receive coil system for imaging a breast on a human chest with a horizontal field MRI system includes a volume saddle coil adapted to be contoured about the chest; and a Helmholtz coil having a lower portion adapted to be contoured about the chest and an upper portion adapted to be above the chest The coils are operable in quadrature mode.

US Patent:

6850067, Feb 1, 2005

Filed:

May 19, 2003

Appl. No.:

10/440834

Inventors:

Michael Burl - Chagrin Falls OH, US
Mark Xueming Zou - Aurora OH, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

G01V 300

US Classification:

324322, 324318

Abstract:

A detuning circuit for an MRI coil having a series tuning capacitor includes: a detuning inductor and a PIN diode in parallel communication with the tuning capacitor, where the tuning capacitor has a tuning inductor node and a PIN diode node; a first diode and a second diode in parallel communication with the PIN diode, where the first, second and PIN diodes are arranged with the same serial polarity and the first and second diodes have a common node; and a reactance in communication between the common node and the tuning inductor node. The circuit detunes the MRI coil in response to an MRI transmit pulse. A detuning circuit for an MRI coil having a series tuning capacitor includes a detuning inductor; and a detuning switch in parallel combination with a secondary tuning capacitor, the detuning inductor and the parallel combination being in parallel communication with the series tuning capacitor. The secondary tuning capacitor acts to reduce current during detuning of the MRI coil.