Sachin Anil Moghe

US Patent:

20120294417, Nov 22, 2012

Filed:

Jul 25, 2012

Appl. No.:

13/557467

Inventors:

Sachin MOGHE - Northbrook IL, US
Ilmar Hein - Chicago IL, US

Assignee:

Toshiba Medical Systems Corporation - Otawara-shi
Kabushiki Kaisha Toshiba - Minato-ku

International Classification:

A61B 6/03

US Classification:

378 19

Abstract:

A method of computed-tomography and a computed-tomography apparatus in which x-ray projection data is acquired at a number of views for a scan of an object. Partial images are created from data for a desired number of said views. Full scan images are created from plural ones of the partial images. Non-overlapping time images are created from the full-scan images. Gradient images are also created. An improved image is created by weighting respective ones of the full scan and non-overlapping time images using the gradient image. The improved image has increased sharpness with reduced noise.

US Patent:

20130101080, Apr 25, 2013

Filed:

Oct 19, 2011

Appl. No.:

13/276551

Inventors:

Sachin MOGHE - NORTHBROOK IL, US
Michael D. SILVER - NORTHBROOK IL, US

Assignee:

TOSHIBA MEDICAL SYSTEMS CORPORATION - OTAWARA-SHI
KABUSHIKI KAISHA TOSHIBA - TOKYO

International Classification:

A61B 6/03

US Classification:

378 19

Abstract:

The current invention is generally related to an image processing method and system for substantially reducing ring artifacts. Using the attenuation data, the ring artifacts are substantially prevented based upon two-step process, and the second ring artifact reduction step removes the undesirable rings based upon previously determined statistical data including mean and standard deviation.

US Patent:

20110038452, Feb 17, 2011

Filed:

Aug 12, 2009

Appl. No.:

12/539674

Inventors:

Sachin Moghe - Northbrook IL, US

Assignee:

KABUSHIKI KAISHA TOSHIBA - Tokyo
TOSHIBA MEDICAL SYSTEMS CORPORATION - Otawara-shi

International Classification:

H05G 1/60
G06K 9/00

US Classification:

378 19, 382131

Abstract:

A method of computed-tomography and a computed-tomography apparatus in which x-ray projection data is acquired at a number of views for a scan of an object. Partial images are created from data for a desired number of said views. Full scan images are created from plural ones of the partial images. Non-overlapping time images are created from the full-scan images. Gradient images are also created. An improved image is created by weighting respective ones of the full scan and non-overlapping time images using the gradient image. The improved image has increased sharpness with reduced noise.