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Carotid Artery Stenosis: Comparison of 3D Time-of-Flight MR Angiography and Contrast-Enhanced MR Angiography at 3T
Joint Authors
Sieron, Dominik
Wiggermann, Philipp
Laniado, Michael
Platzek, Ivan
Source
Radiology Research and Practice
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-03-23
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
Purpose.
The aim of this study was to assess the correlation of 3D time-of-flight MR angiography (TOF MRA) and contrast-enhanced MR angiography (CEMRA) for carotid artery stenosis evaluation at 3T.
Material and Methods.
Twenty-three patients (5 f, 18 m; mean age 61 y, age range 45–78 y) with internal carotid artery stenosis detected with ultrasonography were examined on a 3.0T MR system.
The MR examination included both 3D TOF MRA and CEMRA of the carotid arteries.
MR images were evaluated independently by two board-certified radiologists.
Stenosis evaluation was based on a five-point scale.
Stenosis grades determined by TOF and CEMRA were compared using Spearman’s rank correlation coefficient and the Wilcoxon test.
Cohen’s Kappa was used to evaluate interrater reliability.
Results.
CEMRA detected stenosis in 24 (52%) of 46 carotids evaluated, while TOF detected stenosis in 27 (59%) of 46 carotids.
TOF MRA yielded significantly higher results for stenosis grade in comparison to CEMRA ( P = 0.014 ).
Interrater agreement was very good for both TOF MRA ( κ = 0.93 ) and CEMRA ( κ = 0.93 ).
Conclusion.
At 3T, 3D TOF MRA should not be used as replacement for contrast-enhanced MRA of the carotid arteries, as it results in significantly higher stenosis grades.
American Psychological Association (APA)
Platzek, Ivan& Sieron, Dominik& Wiggermann, Philipp& Laniado, Michael. 2014. Carotid Artery Stenosis: Comparison of 3D Time-of-Flight MR Angiography and Contrast-Enhanced MR Angiography at 3T. Radiology Research and Practice،Vol. 2014, no. 2014, pp.1-5.
https://search.emarefa.net/detail/BIM-1047426
Modern Language Association (MLA)
Platzek, Ivan…[et al.]. Carotid Artery Stenosis: Comparison of 3D Time-of-Flight MR Angiography and Contrast-Enhanced MR Angiography at 3T. Radiology Research and Practice No. 2014 (2014), pp.1-5.
https://search.emarefa.net/detail/BIM-1047426
American Medical Association (AMA)
Platzek, Ivan& Sieron, Dominik& Wiggermann, Philipp& Laniado, Michael. Carotid Artery Stenosis: Comparison of 3D Time-of-Flight MR Angiography and Contrast-Enhanced MR Angiography at 3T. Radiology Research and Practice. 2014. Vol. 2014, no. 2014, pp.1-5.
https://search.emarefa.net/detail/BIM-1047426
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1047426