A new MRI technique for demonstrating the surface of the brain together with the cortical veins

We assessed combining of surface-anatomy scanning (SAS) MRI and MR venograp hy (MRV). We obtained SAS images with a half-Fourier single-shot fast spin- echo sequence, then MRV of the identical section with a two-dimensional pha se-contrast technique. We then added the two sets of images. The combined i mages, which were obtained within 10 min, provided information about the su rface anatomy and cortical veins. This simple technique is useful for demon strating brain surface structures, especially in patients from whom one pla ns to excise a lesion.