Qun Chen

US Patent:

20070190663, Aug 16, 2007

Filed:

Aug 14, 2006

Appl. No.:

11/504570

Inventors:

Ray Lee - New York NY, US
Georgeann McGunness - New York NY, US
Glyn Johnson - New York NY, US
Qun Chen - New Hyde Park NY, US
Robert Grossman - New York NY, US

International Classification:

G01N 24/00
A61B 5/05

US Classification:

436173000, 600410000

Abstract:

A system and method for performing parallel magnetic resonance imaging (“MRI”) with a polarizable or hyperpolarizable contrast agent are provided. The contrast agent may be provided in the form of a gas, a liquid, or a solid. The system may include a phased-array rigid coil with, e.g., a 24-channel phased-array for a receiver and a 2-channel large loop for a transmitter. The phased-array rigid coil can be connected to a low impedance preamplifier for decoupling the strong coupling between two adjacent coils in the phased-array rigid coil. The system and method may be used for enhancing the signal-to-noise ratio, and/or reducing the scan acquisition time of acquired images in a parallel MRI scan of a patient who is breathing a hyperpolarized gas.

US Patent:

61989584, Mar 6, 2001

Filed:

Jun 11, 1998

Appl. No.:

9/096725

Inventors:

John R. Ives - Lexington MA
Alvaro Pascual-Leone - Wayland MA
Qun Chen - Brookline MA

Assignee:

Beth Israel Deaconess Medical Center, Inc.

International Classification:

A61B 505

US Classification:

600411

Abstract:

A method and apparatus for monitoring a magnetic resonance image of a patient during administration of transcranial magnetic stimulation. The method includes the steps of applying transcranial magnetic stimulation (TMS) to a patient using a probe that is substantially constructed of non-ferromagnetic material, monitoring a magnetic resonance image (MRI) of the patient during TMS wherein application of the TMS does not need to by synchronized to monitoring of the MRI.