| Preoperative Vascular Mapping for Facial Allotransplantation: Four-Dimensional Computed Tomographic Angiography versus Magnetic Resonance Angiography. | |
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MedLine Citation:
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PMID: 21921764 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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BACKGROUND: : Facial allotransplantation requires a detailed arterial and venous assessment for surgical planning. Target vessels are often depleted by multiple reconstructive attempts or the severe facial injury itself. The purpose of this study was to retrospectively compare the diagnostic performance of computed tomography and magnetic resonance angiography in the preoperative assessment. METHODS: : Four-dimensional (three spatial planes plus time) computed tomographic and magnetic resonance images including 126 potential vessels (76 arteries and 50 veins) from five candidates were analyzed independently by two radiologists using a four-point image quality scale. Computed tomographic versus magnetic resonance image quality was compared directly, using a computed tomographic angiography consensus read as reference standard. Vessels with metal artifact on magnetic resonance imaging, computed tomography, or both underwent separate analyses to determine the impact of metal implants on image quality. RESULTS: : Considering all 126 vessels, the mean computed tomographic image quality was superior to that of magnetic resonance angiography. When considering individual vessels, all except for major neck vessels were better visualized by computed tomography. Images of 26 vessels were degraded by metal artifact; magnetic resonance image quality was inferior for those vessels. Considering images of major vessels with no metal artifact, there was no significant mean image quality difference between computed tomography and magnetic resonance imaging. CONCLUSIONS: : Computed tomographic angiography should be used as the first-choice modality for preoperative imaging of facial transplant patients because, when compared with magnetic resonance imaging, the visualization of small vessels is far superior and images have fewer artifacts. CLINICAL QUESTION/LEVEL OF EVIDENCE:: Diagnostic, II. |
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Authors:
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Shigeyoshi Soga; Bohdan Pomahac; Dimitrios Mitsouras; Kanako Kumamaru; Sara L Powers; Richard F Prior; Jason Signorelli; Ericka M Bueno; Michael L Steigner; Frank J Rybicki |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Plastic and reconstructive surgery Volume: 128 ISSN: 1529-4242 ISO Abbreviation: Plast. Reconstr. Surg. Publication Date: 2011 Oct |
Date Detail:
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Created Date: 2011-09-16 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 1306050 Medline TA: Plast Reconstr Surg Country: United States |
Other Details:
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Languages: eng Pagination: 883-91 Citation Subset: AIM; IM |
Affiliation:
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Boston, Mass. From the Applied Imaging Science Laboratory, Department of Radiology, and the Department of Plastic and Reconstructive Surgery, Brigham and Women's Hospital. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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