Title:
METHOD FOR COMPENSATING FOR MOTION ARTIFACTS IN MAGNETIC RESONANCE IMAGING BY PHASE LINE PREDICTION
Document Type and Number:
WIPO Patent Application WO2003050761
Kind Code:
A3
Abstract:
A method for compensation for object motion during a scan, especially an magnetic resonance imaging (MRI) scan is provided. The method involves taking a first data set corresponding to a first focussed image and adding a number of data points to form a slightly higher resolution image. The first data set is then used to predict what the next data points would be. The prediction can be performed in k-space, image space or in a hybrid space. The predicted data points are then compared with the actual data points acquired as a means of determining any displacements. The displacements may be determined by comparing the phases of the actual and predicted data points and the k-space data corrected to compensate for any detected motion.
Inventors:
STOYLE PETER NORMAN ROBERTSON (GB)
Application Number:
PCT/GB2002/005528
Publication Date:
December 04, 2003
Filing Date:
December 05, 2002
Export Citation:
Assignee:
QINETIQ LTD (GB)
STOYLE PETER NORMAN ROBERTSON (GB)
STOYLE PETER NORMAN ROBERTSON (GB)
International Classes:
G06T5/00; A61B5/055; G06T11/00; (IPC1-7): G06T11/00
Foreign References:
| EP0910835A1 | 1999-04-28 |
Other References:
CLARKE R J: "IMAGE AND VIDEO COMPRESSION: A SURVEY", INTERNATIONAL JOURNAL OF IMAGING SYSTEMS AND TECHNOLOGY, WILEY AND SONS, NEW YORK, US, vol. 10, no. 1, 1999, pages 20 - 32, XP000929482, ISSN: 0899-9457
GUIDRY D L ET AL: "Active contours: an overview with applications to motion artifact cancellation in MRI", PROCEEDINGS OF THE 20TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. VOL.20 BIOMEDICAL ENGINEERING TOWARDS THE YEAR 2000 AND BEYOND (CAT. NO.98CH36286), 1998, Piscataway, NJ, USA, IEEE, USA, pages 644 - 647 vol.2, XP010320604, ISBN: 0-7803-5164-9
GUIDRY D L ET AL: "Active contours: an overview with applications to motion artifact cancellation in MRI", PROCEEDINGS OF THE 20TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. VOL.20 BIOMEDICAL ENGINEERING TOWARDS THE YEAR 2000 AND BEYOND (CAT. NO.98CH36286), 1998, Piscataway, NJ, USA, IEEE, USA, pages 644 - 647 vol.2, XP010320604, ISBN: 0-7803-5164-9
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