Navigator-gated and real-time motion corrected free-breathing MR Imaging of myocardial late enhancement.

Details

Serval ID
serval:BIB_E349D01878E9
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Navigator-gated and real-time motion corrected free-breathing MR Imaging of myocardial late enhancement.
Journal
Röfo
Author(s)
Spuentrup E., Buecker A., Karassimos E., Günther R.W., Stuber M.
ISSN
1438-9029[print], 1438-9010[linking]
Publication state
Published
Issued date
2002
Volume
174
Number
5
Pages
562-567
Language
english
Notes
Publication types: Journal Article
Publication Status: ppublish
Abstract
PURPOSE: A new magnetic resonance imaging approach for detection of myocardial late enhancement during free-breathing was developed. METHODS AND RESULTS: For suppression of respiratory motion artifacts, a prospective navigator technology including real-time motion correction and a local navigator restore was implemented. Subject specific inversion times were defined from images with incrementally increased inversion times acquired during a single dynamic scout navigator-gated and real-time motion corrected free-breathing scan. Subsequently, MR-imaging of myocardial late enhancement was performed with navigator-gated and real-time motion corrected adjacent short axis and long axis (two, three and four chamber) views. This alternative approach was investigated in 7 patients with history of myocardial infarction 12 min after i. v. administration of 0.2 mmol/kg body weight gadolinium-DTPA. CONCLUSION: With the presented navigator-gated and real-time motion corrected sequence for MR-imaging of myocardial late enhancement data can be completely acquired during free-breathing. Time constraints of a breath-hold technique are abolished and optimized patient specific inversion time is ensured.
Keywords
Adult, Aged, Contrast Media, Heart/anatomy & histology, Humans, Magnetic Resonance Imaging/methods, Male, Middle Aged, Myocardial Infarction/diagnosis, Myocardium/metabolism
Pubmed
Web of science
Create date
02/03/2010 16:04
Last modification date
20/08/2019 16:07
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