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Noninvasive visualization of the basilar artery wall and branch ostia with high-resolution three-dimensional black-blood sequence at 3 tesla.
- Source :
-
Journal of magnetic resonance imaging : JMRI [J Magn Reson Imaging] 2014 Apr; Vol. 39 (4), pp. 911-6. - Publication Year :
- 2014
-
Abstract
- Purpose: To evaluate the usefulness of three-dimensional (3D) MR black-blood sequence flow-dephasing-prepared fast spoiled gradient recalled echo (FDP-FSPGR) in screening the basilar artery (BA) wall and the ostia of the adjacent branch arteries.<br />Materials and Methods: Twenty-one patients with BA stenosis >50% on digital subtraction angiography (DSA) were imaged. Three-dimensional FDP-FSPGR images were acquired using a flow-dephasing-prepared segmented technique, including two spin echoes to overcome the inhomogeneity of the radiofrequency field. Precontrast and postcontrast 3D FDP-FSPGR sequences were performed.<br />Results: The wall of the BA could be visualized in 20 patients with good contrast, and 82 ostia of the adjacent branch arteries were identified on 3D FDP-FSPGR images. Compared with DSA, the accuracy of it was 0.94 (95% confidence interval [CI], 0.89 to 0.99) for reader 1 and 0.92 (95% CI, 0.86 to 0.98) for reader 2, with strong agreement between the two readers (κ = 0.82). BA plaque enhancement was noted in 16 of the 20 patients after contrast administration.<br />Conclusion: The 3D FDP-FSPGR can be used for high-spatial-resolution demonstration and large coverage of the BA wall and the ostia of the adjacent branch arteries. This sequence will make it possible to evaluate therapeutic effects in clinical studies.
- Subjects :
- Adult
Aged
Female
Humans
Male
Middle Aged
Reproducibility of Results
Sensitivity and Specificity
Algorithms
Basilar Artery pathology
Image Enhancement methods
Image Interpretation, Computer-Assisted methods
Imaging, Three-Dimensional methods
Magnetic Resonance Angiography methods
Vertebrobasilar Insufficiency pathology
Subjects
Details
- Language :
- English
- ISSN :
- 1522-2586
- Volume :
- 39
- Issue :
- 4
- Database :
- MEDLINE
- Journal :
- Journal of magnetic resonance imaging : JMRI
- Publication Type :
- Academic Journal
- Accession number :
- 24783241
- Full Text :
- https://doi.org/10.1002/jmri.24222