Navigator-gated coronary magnetic resonance angiography using steady-state-free-precession: comparison to standard T2-prepared gradient-echo and spiral imaging.

Details

Serval ID
serval:BIB_436DD58B32E0
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Navigator-gated coronary magnetic resonance angiography using steady-state-free-precession: comparison to standard T2-prepared gradient-echo and spiral imaging.
Journal
Investigative Radiology
Author(s)
Spuentrup E., Buecker A., Stuber M., Botnar R., Nguyen T.H., Börnert P., Kölker C., Günther R.W.
ISSN
0020-9996[print], 0020-9996[linking]
Publication state
Published
Issued date
2003
Volume
38
Number
5
Pages
263-268
Language
english
Notes
Publication types: Comparative Study ; Journal Article
Publication Status: ppublish
Abstract
RATIONALE AND OBJECTIVES: Recent developments of magnetic resonance imaging enabled free-breathing coronary MRA (cMRA) using steady-state-free-precession (SSFP) for endogenous contrast. The purpose of this study was a systematic comparison of SSFP cMRA with standard T2-prepared gradient-echo and spiral cMRA. METHODS: Navigator-gated free-breathing T2-prepared SSFP-, T2-prepared gradient-echo- and T2-prepared spiral cMRA was performed in 18 healthy swine (45-68 kg body-weight). Image quality was investigated subjectively and signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR) and vessel sharpness were compared. RESULTS: SSFP cMRA allowed for high quality cMRA during free breathing with substantial improvements in SNR, CNR and vessel sharpness when compared with standard T2-prepared gradient-echo imaging. Spiral imaging demonstrated the highest SNR while image quality score and vessel definition was best for SSFP imaging. CONCLUSION: Navigator-gated free-breathing T2-prepared SSFP cMRA is a promising new imaging approach for high signal and high contrast imaging of the coronary arteries with improved vessel border definition.
Keywords
Animals, Coronary Angiography/methods, Coronary Disease/diagnosis, Image Processing, Computer-Assisted, Imaging, Three-Dimensional, Magnetic Resonance Angiography/methods, Swine
Pubmed
Web of science
Create date
02/03/2010 16:04
Last modification date
20/08/2019 13:47
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