More articles from Functional
- Challenges in Identifying the Foot Motor Region in Patients with Brain Tumor on Routine MRI: Advantages of fMRI
Thirty-five attending-level raters evaluated 14 brain tumors involving the frontoparietal convexity. Raters identified the location of the foot motor homunculus and determined whether the tumor involved the foot motor area and/or motor cortex by using anatomic MR imaging. Seventy-seven percent of the time raters correctly identified whether the tumor was in the foot motor cortex. Raters with fMRI experience were significantly better than raters without experience at foot motor fMRI centroid predictions.
- Brain Structure and Function in Patients after Metal-on-Metal Hip Resurfacing
Malfunction of metal-on-metal hip prostheses may produce visual, hearing, and motor deficits. These authors compared brain volumes, metal deposition, and gray matter attenuation in 2 groups of patients 8 years after surgery. Whole blood cobalt and chromium levels were higher in patients with metal-on-metal prostheses and associated with subtle structural changes in the visual pathways and basal ganglia.