Table 4:

Characteristics of evaluated MRIs

Strength/SequenceNo. of Cases with Given Strength or Sequence (% of 63 Total Cases)Range of Spatial Resolution
Magnet strength
 1.5T36 (57.1%)
 3T24 (38.1%)
 Other magnet strength3 (4.8%)
Sequence
 3D-T1 Postgadolinium38 (60.3%)0.4–5 mm
 2D-T1 Postgadolinium50 (79.4%)1–5 mm
 SWI59 (93.7%)1.6–6 mm
 T253 (84.1%)1–7.5 mm
 MRA (any)50 (79.4%)0.5–2.6 mm
 TOF-MRA only28 (44.4%)0.5–2.6 mm
 Postgadolinium MRA only2 (3.2%)1–1.2 mm
 TOF and postgadolinium MRA20 (31.7%)1–1.4 mm