| Movement correction of the kidney in dynamic MRI scans using FFT phase difference movement detection. | |
| | |
MedLine Citation:
|
PMID: 11747031 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
To measure cortical and medullary MR renograms, regions of interest (ROIs) are placed on the kidney in images acquired using dynamic MRI. Since native kidneys move with breathing, and breath-holding techniques are not feasible, movement correction is necessary. In this contribution we compare three correction methods, based on image matching, phase difference movement detection (PDMD), and cross-correlation, respectively. The PDMD-based method showed the best performance and was able to determine kidney movement in our test series in 68% of the scans with no visible deviation, and in 88% of the scans if a one-pixel deviation is considered acceptable. |
| | |
Authors:
|
E L Giele; J A de Priester; J A Blom; J A den Boer; J M van Engelshoven; A Hasman; M Geerlings |
Publication Detail:
|
Type: Comparative Study; Journal Article |
Journal Detail:
|
Title: Journal of magnetic resonance imaging : JMRI Volume: 14 ISSN: 1053-1807 ISO Abbreviation: J Magn Reson Imaging Publication Date: 2001 Dec |
Date Detail:
|
Created Date: 2001-12-17 Completed Date: 2002-01-29 Revised Date: 2007-11-15 |
Medline Journal Info:
|
Nlm Unique ID: 9105850 Medline TA: J Magn Reson Imaging Country: United States |
Other Details:
|
Languages: eng Pagination: 741-9 Citation Subset: IM |
Copyright Information:
|
Copyright 2001 Wiley-Liss, Inc. |
Affiliation:
|
Department of Measurement and Control Systems, Eindhoven University of Technology, AZ Eindhoven, The Netherlands. eelco@stack.nl |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Algorithms Contrast Media Gadolinium DTPA / diagnostic use Humans Image Enhancement Kidney Cortex / physiology* Kidney Medulla / physiology* Magnetic Resonance Imaging / methods* Movement Statistics as Topic |
| Chemical | |
Reg. No./Substance:
|
0/Contrast Media; 80529-93-7/Gadolinium DTPA |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Estimation and visualization of regional and global pulmonary perfusion with 3D magnetic resonance a...
Next Document: Assessment of tumor oxygenation in human cervical carcinoma by use of dynamic Gd-DTPA-enhanced MR im...