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British Journal of Radiology (2003) 76, 98-103
© 2003 British Institute of Radiology
doi: 10.1259/bjr/66817309
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Motor functional MRI for pre-operative and intraoperative neurosurgical guidance

I D Wilkinson, PhD, ARCP, FIPEM1, C A J Romanowski, FRCR2, D A Jellinek, MD, FRCS(NS)3, J Morris, DCR1 and P D Griffiths, FRCR, PhD1

1 Academic Unit of Radiology, University of Sheffield, Sheffield and Departments of 2 Radiology and 3 Neurosurgery, Royal Hallamshire Hospital, Sheffield Teaching Hospitals NHS Trust, Sheffield S10 2JF, UK



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  		Figure 1. Data from a 33-year-old male with a space-occupying lesion in the right paracentral lobule depicting statistically significant correlation (p<0.05, corrected for multiple comparisons) between finger movement and model haemodynamic response overlaid (in colour) on base echo-planar images (greyscale). (a) Activation can be attributed to primary motor, primary somatosensory and supplementary motor areas of the cortex within the left hemisphere following right hand movement. (b) Bilateral activation is detected following left hand movement. (c) Post-Gd-DTPA T1 weighted spin-echo image depicting the anatomy at the level of the echo planar images (a) and (b). (d) Post-Gd-DTPA T1 weighted spin-echo image showing the tumour.

 


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  		Figure 2. Data from a 32-year-old female with a space-occupying lesion within the frontal lobe depicting statistically significant correlation (p<0.05, corrected for multiple comparisons) between finger movement and model haemodynamic response overlaid (in colour) on T2 weighted fast spin echo images (greyscale). Right hand movement, (a) and (b), left (symptomatic) hand movement, (c) and (d) leading to bilateral activation. Note the proximity of activation within the right hemisphere and midline (supplementary motor area) to the tumour.

 


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  		Figure 3. Data from a 30-year-old male with a right fronto-parietal lesion depicting statistically significant correlation (p<0.05, corrected for multiple comparisons) between finger movement and model haemodynamic response overlaid (in colour) on base echo-planar images (greyscale). (a) right hand movement and (b) left hand movement. Note the asymmetry in activation between hemispheres, presumably resulting from the mass-effect of the lesion.

 




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