| Prospective Evaluation of High-Resolution MRI Using Gadofosveset for Stent-Graft Planning: Comparison With CT Angiography in 30 Patients. | |
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MedLine Citation:
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PMID: 22021522 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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OBJECTIVE: The purpose of our study was to compare high-resolution gadofosveset-enhanced MR angiography (MRA) with the reference standard CT angiography (CTA) in planning endovascular aneurysm repair (EVAR) of abdominal aortic aneurysms. SUBJECTS AND METHODS: Thirty consecutive patients were included in this prospective study. CTA was performed routinely before EVAR for stent-graft implantation planning and selection. In addition, first-pass and, after a delay of 10 minutes, steady-state MRA were performed using the blood pool contrast agent gadofosveset for study purposes. Standard diameter and length parameters for stent-graft evaluation rendered from CTA and MRA were compared. According to the results of MRA measurements, stent-grafts were selected for each patient and compared with the device actually implanted. Image quality was assessed using subjective image quality parameters. RESULTS: Diameter and length measurements showed small but significant differences (p < 0.001) between MRA and CTA. Stent-graft selection according to these measurements showed 100% concordance between both modalities. Subjective imaging parameters showed significantly better results for CTA compared with MRA (p < 0.001). CONCLUSION: In this study, MRA using a blood pool contrast agent has shown the ability to provide reliable and exact measurements before EVAR, allowing noninvasive planning of the intervention despite lower image-quality and without the disadvantages of ionizing radiation and nephrotoxicity. |
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Authors:
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Florian Wolf; Christina Plank; Dietrich Beitzke; Martin Popovic; Christoph M Domenig; Michael Weber; Christian Loewe |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: AJR. American journal of roentgenology Volume: 197 ISSN: 1546-3141 ISO Abbreviation: AJR Am J Roentgenol Publication Date: 2011 Nov |
Date Detail:
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Created Date: 2011-10-24 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7708173 Medline TA: AJR Am J Roentgenol Country: United States |
Other Details:
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Languages: eng Pagination: 1251-7 Citation Subset: AIM; IM |
Affiliation:
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Department of Radiology, Division of Cardiovascular and Interventional Radiology, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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