Han Jun Kim

US Patent:

20130194265, Aug 1, 2013

Filed:

Nov 16, 2012

Appl. No.:

13/678594

Inventors:

Wolfgang G Rehwald - Chapel Hill NC, US
Elizabeth R Jenista - Durham NC, US
Raymond J Kim - Chapel Hill NC, US
Han W Kim - Raleigh NC, US

International Classification:

G06T 15/08

US Classification:

345424, 345419

Abstract:

A virtual frequency selective inversion (VFSI) method receives at least one MR image representative dataset and an associated phase reference dataset, and classifies anatomical material into a first component representing anatomical material having a first range of resonance frequencies associated with a first range of phase differences between the MR image representative dataset and the associated phase reference image dataset, and a second component representing anatomical material having a second range of resonance frequencies associated with a second range of phase differences between the MR image representative dataset and the associated phase reference image dataset. The method assigns different visual attributes to first and second components derived using phase differences between the MR image representative dataset and the reference image dataset and displays an image.

US Patent:

20150077106, Mar 19, 2015

Filed:

Nov 14, 2012

Appl. No.:

14/373895

Inventors:

Raymond J. Kim - Chapel Hill NC, US
Elizabeth R. Jenista - Durham NC, US
Han W. Kim - Raleigh NC, US

International Classification:

G01R 33/483
G01R 33/46
G01R 33/36
G06T 11/00

US Classification:

324309, 324318

Abstract:

Magnetic resonance imaging (MRI) acquisition and reconstruction techniques that invert MR signals of selected frequencies without the application of inversion RF pulses are disclosed. An example method comprises acquisition of at least one MR image representative dataset and an associated phase reference dataset, and classifies anatomical material into a first component representing anatomical material having a first range of resonance frequencies associated with a first range of phase differences between the MR image representative dataset and the reference image dataset and a second component representing anatomical material having a second range of resonance frequencies associated with a second range of phase differences between the MR image representative dataset and the reference image dataset. The method assigns different visual attributes to first and second components derived using phase differences between the MR image representative dataset and the reference image dataset and displays an image.