Contrast-enhanced MR angiography in patients with carotid artery stenosis: comparison of two different techniques with an unenhanced 2D time-of-flight sequence

2000 ◽  
Vol 42 (4) ◽  
pp. 240-248 ◽  
Author(s):  
H. R. Jäger ◽  
E. A. Moore ◽  
M. Bynevelt ◽  
S. Coley ◽  
P. Mounfield ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Carotid Artery Stenosis ◽  
Mr Angiography ◽  
Time Of Flight ◽  
Artery Stenosis ◽  
Contrast Enhanced

scholarly journals Carotid Artery Stenosis: Comparison of 3D Time-of-Flight MR Angiography and Contrast-Enhanced MR Angiography at 3T

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Ivan Platzek ◽  
Dominik Sieron ◽  
Philipp Wiggermann ◽  
Michael Laniado
Keyword(s):  
Carotid Artery ◽  
Carotid Artery Stenosis ◽  
Mr Angiography ◽  
Carotid Arteries ◽  
Time Of Flight ◽  
Internal Carotid Artery Stenosis ◽  
Artery Stenosis ◽  
Wilcoxon Test ◽  
Tof Mra ◽  
Contrast Enhanced

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.

Carotid artery stenosis: clinical efficacy of two-dimensional time-of-flight MR angiography.

Radiology ◽  
1992 ◽  
Vol 182 (3) ◽  
pp. 761-768 ◽  
Author(s):  
J E Heiserman ◽  
B P Drayer ◽  
E K Fram ◽  
P J Keller ◽  
C R Bird ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Clinical Efficacy ◽  
Carotid Artery Stenosis ◽  
Mr Angiography ◽  
Time Of Flight ◽  
Artery Stenosis ◽  
Two Dimensional

Carotid Artery Stenosis: Accuracy of Contrast-enhanced MR Angiography for Diagnosis

Radiology ◽  
2003 ◽  
Vol 228 (3) ◽  
pp. 677-682 ◽  
Author(s):  
Paul J. Nederkoorn ◽  
Otto E. H. Elgersma ◽  
Yolanda van der Graaf ◽  
Bert C. Eikelboom ◽  
L. Jaap Kappelle ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Carotid Artery Stenosis ◽  
Mr Angiography ◽  
Artery Stenosis ◽  
Contrast Enhanced
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