Resting-State Metabolism of Hand Knob Area on 18F-FDG PET-CT According to Hand Function and Tractography of Corticospinal Tract After Stroke

다국어 초록 (Multilingual Abstract)

Objective To correlate the resting metabolism of hand knob and hand function after stroke, diffuse tensor tractography (DTT) and 18F-fluorodeoxyglucose position emission tomography (18F-FDG PET) were used to evaluate constructible state of white matter tract and metabolic state of gray matter, respectively. Methods A total of 17 patients were included in the study, who had suffered a stroke with hand weakness, after a stroke. They underwent diffusion tensor analysis and FDG PET in the subacute period. The ratio of both hemisphere parameters in voxel number of fibers, fractional anisotropy (FA) and apparent diffusion coefficient obtained by corticospinal tract as constructed by DTT, and the metabolism of hand knob area on cerebral cortex obtained from 18F-FDG PET were calculated. Hand movement scale was evaluated on the day of FDG PET or tractography, and at 6 months after onset. Results Difference of FA in DTT between both hemispheres and hand knob metabolism in FDG PET significantly correlated with the hand movement scale at the subacute stage and 6 months after onset. However, the difference of both hemispheres in DTT and metabolism of hand knob area was not significant.Conclusion Resting metabolism on hand knob in FDG PET correlated with hand function after stroke.

참고문헌 (Reference)

1 Mori S, "Threedimensional tracking of axonal projections in the brain by magnetic resonance imaging" 45 : 265-269, 1999

2 Watanabe T, "Three-dimensional anisotropy contrast magnetic resonance axonography to predict the prognosis for motor function in patients suffering from stroke" 94 : 955-960, 2001

3 Dimitrakopoulou-Strauss A, "Quantitative PET studies in pretreated melanoma patients: a comparison of 6-[18F]fluoro-L-dopa with 18F-FDG and (15)O-water using compartment and noncompartment analysis" 42 : 248-256, 2001

4 Katrak P, "Predicting upper limb recovery after stroke:the place of early shoulder and hand movement" 79 : 758-761, 1998

5 Langhorne P, "Motor recovery after stroke: a systematic review" 8 : 741-754, 2009

6 Cho SH, "Motor outcome according to the integrity of the corticospinal tract determined by diffusion tensor tractography in the early stage of corona radiata infarct" 426 : 123-127, 2007

7 Yousry TA, "Localization of the motor hand area to a knob on the precentral gyrus: a new landmark" 120 : 141-157, 1997

8 Seghier ML, "Laterality index in functional MRI: methodological issues" 26 : 594-601, 2008

9 Herrero MT, "Functional anatomy of thalamus and basal ganglia" 18 : 386-404, 2002

10 Felleman DJ, "Distributed hierarchical processing in the primate cerebral cortex" 1 : 1-47, 1991

11 Dukart J, "Differential effects of global and cerebellar normalization on detection and differentiation of dementia in FDG-PET studies" 49 : 1490-1495, 2010

12 Jang SH, "Cortical activation changes associated with motor recovery in patients with precentral knob infarct" 15 : 395-399, 2004

13 Kushner M, "Cerebellar glucose consumption in normal and pathologic states using fluorine-FDG and PET" 28 : 1667-1670, 1987