Spiral 3D time-of-flight MR angiography for rapid non-contrast carotid artery imaging: Clinical feasibility and protocol optimization

2022 ◽  
Vol 93 ◽  
pp. 20-28
Author(s):  
Elisabeth Sartoretti ◽  
Sabine Sartoretti-Schefer ◽  
Luuk van Smoorenburg ◽  
Christoph A. Binkert ◽  
Andreas Gutzeit ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Mr Angiography ◽  
Time Of Flight ◽  
Protocol Optimization

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: Intraindividual Correlations of 3D Time-of-Flight MR Angiography, Contrast-enhanced MR Angiography, Conventional DSA, and Rotational Angiography for Detection and Grading

Radiology ◽  
2005 ◽  
Vol 236 (1) ◽  
pp. 204-213 ◽  
Author(s):  
Nicoletta Anzalone ◽  
Francesco Scomazzoni ◽  
Renata Castellano ◽  
Laura Strada ◽  
Claudio Righi ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Carotid Artery Stenosis ◽  
Mr Angiography ◽  
Time Of Flight ◽  
Artery Stenosis ◽  
Rotational Angiography ◽  
Contrast Enhanced

Carotid artery: prospective blinded comparison of two-dimensional time-of-flight MR angiography with conventional angiography and duplex US.

Radiology ◽  
1993 ◽  
Vol 186 (2) ◽  
pp. 339-344 ◽  
Author(s):  
J Huston ◽  
B D Lewis ◽  
D O Wiebers ◽  
F B Meyer ◽  
S J Riederer ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Mr Angiography ◽  
Time Of Flight ◽  
Two Dimensional ◽  
Conventional Angiography

Contrast-enhanced 3D MR DSA of the carotid artery bifurcation: preliminary study of comparison with unenhanced 2D and 3D time-of-flight MR angiography.

Radiology ◽  
1998 ◽  
Vol 208 (2) ◽  
pp. 447-451 ◽  
Author(s):  
D S Willig ◽  
P A Turski ◽  
R Frayne ◽  
V B Graves ◽  
F R Korosec ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Mr Angiography ◽  
Time Of Flight ◽  
Carotid Artery Bifurcation ◽  
Contrast Enhanced ◽  
Preliminary Study ◽  
2D And 3D
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