OBJECTIVE: To compare the results of visual functional MRI with those of perimetric evaluation in @entity1 with @entity227 and @entity5 and in normal subjects without @entity227 . The potential clinical usefulness of visual functional MRI data during resective surgery was evaluated in @entity1 with @entity5 . METHODS: Eleven @entity1 with @entity5 and @entity227 and 12 normal subjects were studied by fMRI using bimonocular or monocular repetitive photic stimulation (8 Hz). The data obtained were analyzed with the statistical parametric maps software (p<10(-8)) and were compared with the results of Goldmann visual field perimetric evaluation. In @entity1 with @entity1313 undergoing surgery, the functional data were registered in a frameless stereotactic device and the images fused into anatomical three standard planes and three dimensional reconstructions of the brain surface. RESULTS: Two studies of @entity1 were discarded, one because of head motion and the other because of badly followed instructions. On the remaining @entity1 the functional activations found in the visual cortex were consistent with the results of perimetric evaluation in all but one of the @entity1 and all the normal subjects although the results of fMRI were highly dependent on the choices of the analysis thresholds. Visual functional MRI image guided data were used in five @entity1 with @entity1313 . No added postoperative functional field defect was detected. CONCLUSIONS: There was a good correspondence between fMRI data and the results of perimetric evaluation although dependent on the analysis thresholds. Visual fMRI data registered into a frameless stereotactic device may be useful in surgical @entity5 removal.

Perimetric visual field and functional MRI correlation: implications for image-guided surgery in XXXX .

@entity1 :: ('9606', 'Species') :: ['patients'] @entity227 :: ('MESH:D014786', 'Disease') :: ['visual field defect', 'visual field defects'] @entity5 :: ('MESH:D009369', 'Disease') :: ['retrochiasmastic tumours', 'occipital lobe tumours', 'planning and tumour', 'various tumours'] @entity1313 :: ('MESH:D001932', 'Disease') :: ['occipital brain tumours']
@entity1313 :: (MESH:D001932,Disease) :: ['occipital brain tumours']
