| Peripheral MRA with k-space segmentation and blood-pool contrast agent. | |
| | |
MedLine Citation:
|
PMID: 20947388 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
|
RATIONALE AND OBJECTIVES: The purpose of this study was to perform high-resolution contrast-enhanced peripheral multistation magnetic resonance angiography using a new blood-pool contrast agent (gadofosveset trisodium; Vasovist) while suppressing venous signal by using an acquisition scheme with k-space segmentation. MATERIALS AND METHODS: Multistation peripheral magnetic resonance angiography with Vasovist was performed in 20 patients with known peripheral arterial occlusive disease. The k-space of the three-dimensional data sets was segmented such that the central parts were acquired during the first pass of the blood-pool agent, while the peripheral parts were acquired in the steady state. A third magnetic resonance angiographic data set acquired using the conventional technique served as comparison for venous overlay. Two radiologists blindly compared vessel sharpness, conspicuity, and venous contamination. Furthermore, a semiautomatic program to compare edge sharpness was used. Results were compared by means of Wilcoxon's signed rank sum test. RESULTS: Comparison of vessel sharpness revealed statistically significant differences in favor of the fused data sets in all three stations. Arteries were depicted more sharply in the fused images and over longer parts, while veins were almost completely suppressed. CONCLUSIONS: Peripheral contrast-enhanced magnetic resonance angiography with first-pass and steady-state k-space segmentation using a blood-pool contrast agent proved feasible and provided high-resolution data with sharp delineation of the arteries while reducing venous contamination. |
| | |
Authors:
|
Sonja Kinner; Michael O Zenge; Christina Heilmaier; Armin de Greiff; Florian M Vogt; Mark E Ladd; Jörg Barkhausen; Harald H Quick |
Related Documents
:
|
11687668 - Imaging of the internal carotid artery: the dilemma of total versus near total occlusion. 12461268 - Hemodialysis access imaging: comparison of flow-interrupted contrast-enhanced mr angiog... 2451308 - Radiological diagnosis of the thoracic aortic aneurysm. 9683688 - Non-invasive vascular imaging of peripheral vessels. 13680178 - Splenodiaphragmatic interposition of the descending colon. 16985148 - Mri in evaluating atrophy of the external anal sphincter in patients with fecal inconti... |
Publication Detail:
|
Type: Journal Article Date: 2010-10-14 |
Journal Detail:
|
Title: Academic radiology Volume: 18 ISSN: 1878-4046 ISO Abbreviation: Acad Radiol Publication Date: 2011 Jan |
Date Detail:
|
Created Date: 2010-12-14 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 9440159 Medline TA: Acad Radiol Country: United States |
Other Details:
|
Languages: eng Pagination: 113-9 Citation Subset: IM |
Copyright Information:
|
Copyright © 2011 AUR. Published by Elsevier Inc. All rights reserved. |
Affiliation:
|
Department of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Germany. sonja.kinner@uni-due.de |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Effects of contrast agent on water suppression and shimming of kidney single-volume proton MR spectr...
Next Document: The relationship between small pulmonary vascular alteration and aortic atherosclerosis in chronic o...