151 Study protocol of the WHIMAS 7 Purpose Contrast parameters Resolution (acquisition) Resolution (reconstruction) Field of View Acquisition time (min) Additional information 7T MRI 3DT1 Anatomical information TR/TE = 4.2/1.9 ms 0.90 x 0.90 x0.90 mm3 0.85 x 0.85 x 0.90 mm3 246x 246x174 mm 2:22 Flip angle: 7° 3D FLAIR WMH, lacunes TR/TI = 8000/2200 ms TE = 252 ms 0.70 x 0.70 x 1.40 mm3 0.68 x 0.68 x 0.70 mm3 240x209x180 mm 5:12 Flip angle:90° 3D TSE (T2) Perivascular spaces, arteries TR = 3000 ms TE = 283 ms 0.75 x 0.75 x 0.75 mm3 0.65 x 0.65 x 0.75 mm3 250x250x190 mm 4:06 Flip angle=100° T2* Duyn Iron, microbleeds, superficial siderosis, veins TR/TE = 1830/25 ms 0.24 x 0.24 x 1.00 mm3 0.23 x 0.23 x 1.00 mm3 240x180x101 mm 10:32 Flip angle 60° CSF-STREAM CSF mobility in the perivascular spaces TR = 3430 ms TE = 497 ms 0.45 x 0.45 x 0.45 mm3 0.45 x 0.45 x 0.45 mm3 250x250x190 mm 21:57 Flip angle 90° degrees 2x Phase contrast CSF flow in/out of the cranium TR/TE = 6.7/3.6 ms 1.72 x 1.72 x 10.0 mm3 0.63 x 0.63 x 10.0 mm3 110x110 2x2:08 Venc 10 cm/s and venc 80 cm/s Flip angle 4°
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