| Bilateral ce-MR angiography of the hands at 3.0 T and 1.5 T: intraindividual comparison of quantitative and qualitative image parameters in healthy volunteers. | |
| | |
MedLine Citation:
|
PMID: 18040693 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
The purpose of this study was to determine the benefit of bilateral contrast-enhanced MR angiography (ce-MRA) of the hands at 3.0 Tesla (T) compared with an established 1.5-T technique in healthy volunteers. Intraindividual bilateral ce-MRA of the hands was performed at 1.5 T and 3.0 T in 14 healthy volunteers using a timed ultra-fast GRE sequence featuring parallel acquisition. The evaluation comprised measurement of the vessel signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR), rating of the image quality and the assessment of artefacts and venous contamination. At 3.0 T, SNR improved up to 95% and CNR up to 129%. The image quality of the larger inflow arteries, the palm arches and common digital arteries was good or sufficient at either magnetic field strengths. However, 3.0-T MRA was clearly superior in the depiction of the digital arteries. Ce-MRA of the hand clearly profits from the use of 3.0 T. Compared with 1.5 T, a substantial increase of CNR is found resulting in a significantly better delineation of the small digital arteries. Saturation affects more the SNR of the perivascular tissue than the contrast-enhanced blood, and thus leads to a marked increase of CNR at 3.0. |
| | |
Authors:
|
Jan Thorsten Winterer; Olaf Moske-Eick; Michael Markl; Alexander Frydrychowicz; Thorsten Alexander Bley; Mathias Langer |
Related Documents
:
|
11025513 - Selective contrast-enhanced mr angiography. 10352893 - Magnetic resonance angiography of renal arterial stenosis. 19779283 - Differential diagnosis between radiation necrosis and glioma progression using sequenti... |
Publication Detail:
|
Type: Comparative Study; Journal Article Date: 2007-11-27 |
Journal Detail:
|
Title: European radiology Volume: 18 ISSN: 0938-7994 ISO Abbreviation: Eur Radiol Publication Date: 2008 Apr |
Date Detail:
|
Created Date: 2008-03-20 Completed Date: 2008-09-04 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 9114774 Medline TA: Eur Radiol Country: Germany |
Other Details:
|
Languages: eng Pagination: 658-64 Citation Subset: IM |
Affiliation:
|
Department of Diagnostic Radiology, University of Freiburg, Hugstetter Str. 55, 79106, Freiburg, Germany. jan.winterer@uniklinik-freiburg.de |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adult Contrast Media Female Hand / blood supply* Humans Magnetic Resonance Angiography / methods* Male Statistics, Nonparametric |
| Chemical | |
Reg. No./Substance:
|
0/Contrast Media |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Controlling recurrent papillary thyroid carcinoma in the neck by ultrasonography-guided percutaneous...
Next Document: Long-term outcome of home dipstick testing for hematuria.