Comparison between postcontrast thin-slice T1-weighted 2D spin echo and 3D T1-weighted SPACE sequences in the detection of brain metastases at 1.5 and 3 T.

Relatively fewer metastases were detected on the sequence temporally closer to contrast administration (irrespective of sequence type); however, the difference did not reach statistical significance at the pooled level ( p = 0.08), nor at the level of individual raters (R1, p = 0.16; R2, p = 0.19; R3, p = 0.5).

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