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. 2007 Oct;28(9):1645–1649. doi: 10.3174/ajnr.A0645

Table 3:

Mean number of lesions detected by technique

Type of Lesion PSIR+DIR FLAIR % Improvement P Value
Intracortical 7.8 ± 9.4 1.4 ± 1.8 439 .0002
Mixed 9 ± 11 1.8 ± 2.4 414 <.0001
Juxtacortical 2.5 ± 2.4 1.1 ± 1.5 117 .0078
Overall 19.2 ± 21.1 4.3 ± 4.3 345 <.0001

Note:—PSIR indicates phase-sensitive inversion recovery; DIR, double inversion recovery; FLAIR, fluid-attenuated inversion recovery.