Figure 9a. Cortical MR imaging with the reduced-volume birdcage end-cap coil. (a) Transverse T2-weighted fast SE image (4,000/108) demonstrates normal cerebral cortex with high spatial resolution and excellent contrast between gray and white matter. Spatial resolution is 0.7 mm3/voxel. (b) Transverse T1-weighted SPGR reformatted image (23/4; flip angle, 45°) in another patient demonstrates a small focus of heterotopic gray matter (arrowhead) within the white matter of the right temporal lobe. Spatial resolution is 0.6 mm3/voxel. Arrow = temporal horn of the right lateral ventricle.