scholarly journals Transcranial magnetic motor evoked potentials and magnetic resonance imaging findings in paraplegic dogs with recovery of motor function

2018 ◽  
Vol 32 (3) ◽  
pp. 1116-1125 ◽  
Author(s):  
Johannes S. Siedenburg ◽  
Adriano Wang-Leandro ◽  
Hanna-Luise Amendt ◽  
Karl Rohn ◽  
Andrea Tipold ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Evoked Potentials ◽  
Motor Function ◽  
Motor Evoked Potentials ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
Recovery Of Motor Function

scholarly journals Degeneration of corpus callosum and recovery of motor function after stroke: A multimodal magnetic resonance imaging study

2011 ◽  
Vol 33 (12) ◽  
pp. 2941-2956 ◽  
Author(s):  
Ling E. Wang ◽  
Marc Tittgemeyer ◽  
Davide Imperati ◽  
Svenja Diekhoff ◽  
Mitra Ameli ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Corpus Callosum ◽  
Motor Function ◽  
Imaging Study ◽  
Magnetic Resonance Imaging Study ◽  
Resonance Imaging ◽  
Recovery Of Motor Function

Fractional Anisotropy Levels Derived From Diffusion Tensor Imaging in Cervical Syringomyelia

Neurosurgery ◽  
2010 ◽  
Vol 67 (4) ◽  
pp. 901-905 ◽  
Author(s):  
Florian Roser ◽  
Florian Ebner ◽  
Gottlieb Maier ◽  
Marcos Tatagiba ◽  
Thomas Nägele ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Diffusion Tensor Imaging ◽  
White Matter ◽  
Magnetic Resonance ◽  
Evoked Potentials ◽  
Fractional Anisotropy ◽  
Diffusion Tensor ◽  
Motor Evoked Potentials ◽  
Neurological Deficits ◽  
Resonance Imaging

Abstract BACKGROUND: Syringomyelia can result in major functional disability. Conventional imaging techniques frequently fail to detect the underlying cause of syringomyelia. The prediction as to whether syringomyelia might lead to neurological deficits is still challenging. OBJECTIVE: We hypothesized that fractional anisotropy (FA) derived from diffusion tensor imaging (DTI) is a parameter to detect dynamic forms of syringomyelia. METHODS: Six patients with cervical syringomyelia, all comparable in size, shape, and location, were examined, along with 2 volunteers. Patients underwent electrophysiological recordings (somatosensory evoked potentials, motor evoked potentials, silent periods). Magnetic resonance imaging (1.5 T) was performed with a 6-element spine coil. Anatomic images were acquired with a 3-dimensional, constructive interference in steady-state sequence, and DTI with an echo-planar imaging sequence (5-mm thickness, b value 800 s/mm2) using the generalized autocalibrating partially parallel acquisitions technique. The positions were centered on the syrinx in the volunteers between the C2 and Th1. DTI data were interpolated to a spatial resolution of 0.5 mm. After calculation of a diffusion tensor in each pixel, an FA map was calculated and profiles of the FA values across the spinal cord were calculated in all slices. RESULTS: FA values were lower at the level of all examined syrinxes and reached normal values beyond them. Electrophysiological results correlated with the decrease in FA value. There were no presyrinx changes in the white matter tracts in terms of signs of FA changes beneath the syrinx. CONCLUSION: DTI of syringomyelia can demonstrate white matter fiber tracts around and beyond the syrinx consistent with electrophysiological values. DTI of the cervical spine can provide quantitative information about the pathological characteristics beyond the abnormalities visible on magnetic resonance imaging.

Abnormalities of somatosensory and motor evoked potentials in adrenomyeloneuropathy: Comparison with magnetic resonance imaging and clinical findings

1997 ◽  
Vol 20 (10) ◽  
pp. 1249-1257 ◽  
Author(s):  
Domenico Restuccia ◽  
Vincenzo Di Lazzaro ◽  
Massimiliano Valeriani ◽  
Antonio Oliviero ◽  
Domenica Le Pera ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Evoked Potentials ◽  
Motor Evoked Potentials ◽  
Clinical Findings ◽  
Resonance Imaging

Magnetic resonance imaging and motor-evoked potentials in spinal cord infarction: report of two cases

2010 ◽  
Vol 31 (4) ◽  
pp. 505-509 ◽  
Author(s):  
Raffaele Nardone ◽  
Jürgen Bergmann ◽  
Martin Kronbichler ◽  
Piergiorgio Lochner ◽  
Francesca Caleri ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Magnetic Resonance ◽  
Evoked Potentials ◽  
Motor Evoked Potentials ◽  
Spinal Cord Infarction ◽  
Resonance Imaging
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