More articles from BRAIN
- Arterial Spin-Labeled Perfusion Imaging Reflects Vascular Density in Nonfunctioning Pituitary Macroadenomas
In this study, arterial spin-labeling perfusion was used as a means to assess the well-known angiogenic activity seen in pituitary macroadenomas. Eleven patients with macroadenoma were studied and their ASL results correlated with histologic total microvascular density. The authors found that routine contrast enhancement did not correlate with microvascular density but CBF did and it also correlated with hypervascularity at surgery or postoperative bleeding in 4 instances.
- Structural Abnormalities in Patients with Insular/Peri-insular Epilepsy: Spectrum, Frequency, and Pharmacoresistance
The authors reviewed imaging studies in 48 patients with insular/peri-insular epilepsy seen during a 9-year period. They found the following types of lesions: tumors (27%), cortical malformations (21%), vascular malformations (19%), and gliosis (17%,), and normal results in 8% of subjects. Refractoriness to treatment was seen in all lesions but predominantly in patients with cortical malformations.