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Table 1: 
Distribution of SWI signal characteristics in new MS lesions
SWI SignalNo. (%)Gd+Gd−
Hypointense rings52 (30.8%)4 (7.7%)48 (92.3%)
Marked hypointensity88 (52.1%)3 (3.4%)85 (96.6%)
Mild hypointensity11 (6.5%)10 (90.9%)1 (9.1%)
Iso/hyperintensity18 (10.7%)18 (100.0%)0 (0.0%)
Indeterminate14 (8.3%)6 (42.9%)8 (57.1%)
  • Note:—Gd+ indicates gadolinium-enhancing lesions; Gd–, gadolinium-nonenhancing lesions.