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A–D, Anatomic relationships of the parasagittal line on MR images. The composite representation (A) was traced from serial axial MR images (B–D). Labels as in figures 1 and 2. Despite the differences in the scan angles and technology, MR images display the same anatomic relationships and the same alignments as CT scans do. Because the scan angle used for MR imaging is more horizontal, the partes marginales and adjacent sulci project further posteriorly on the serial axial images
