Article Figures & Data
Figures
- FIG 1.
Schematic illustration of vessels with different visual grade scores for BB performance: 1) less than one-half of the target lumen dimension visible with black signal intensity; 2) one-half to three-quarters of the target lumen dimension visible with black signal intensity; 3) more than three-quarters of the target lumen dimension visible with black signal intensity (with unsuppressed flow near the wall); and 4) completely suppressed flow (with the entire target lumen dimension visible with black signal intensity).
- FIG 2.
A 78-year-old man who underwent HR-VWI. CE 3D-T1-FSE with DANTE (A), CE 3D-T1-FSE with MSDE (B), a proton-density-weighted sequence (C), and a T1-weighted sequence (D). There are nonsuppressed peripheral flows at the ICV (arrows), cortical vein (dotted line), and left M3 (solid line) on CE 3D-T1-FSE with DANTE (A). However, CE 3D-T1-FSE with MSDE (B) shows complete blood suppression at the aforementioned structures.
- FIG 3.
The detailed view of CE 3D-T1-FSE with DANTE (A) and with MSDE (B). The peripherally unsuppressed flow of the ICV (a, arrows), cortical vein in the right temporal sulci (b, dotted line), and the left M3 (c, solid line) on the CE 3D-T1-FSE with DANTE. However, superior blood suppression of the same point in each vessel was noted on CE 3D-T1-FSE with MSDE (d, arrows; e, dotted line; f, solid line).
Tables
- Table 1:
Visual scoring evaluation of the BB effect in the small-sized intracranial arteries, ICV, and the M1 segment of the MCA
Locations 3D-T1-FSE with MSDE 3D-T1-FSE with DANTE P Value A3 3.90 3.58 <.001 M3 3.72 3.26 .004 P2 to P3 3.86 3.64 .017 ICV 3.72 2.32 .001 M1 3.66 3.60 .497 Locations 3D-T1-FSE with MSDE 3D-T1-FSE with DANTE P Value SNRwall 15.556 16.426 .099 SNRlumen 7.880 8.356 .089 SNRcsf 16.950 16.728 .674 CNRwall-lumen 10.082 9.408 .183 CNRwall-csf 1.047 1.785 .013 3D-T1-FSE with MSDE 3D-T1-FSE with DANTE P Value Overall image quality 3.42 3.54 .013 Artifacts 3 3 NA Blood suppression in cortical veins 3.30 2.74 <.001 Blood suppression in transverse sinuses 2.82 2.38 <.001 Note:—NA indicates not available.
