Myelin basic protein and magnetic resonance imaging for diagnosing radiation myelopathy

1988 ◽  
Vol 15 (6) ◽  
pp. 1371-1381 ◽  
Author(s):  
Philip Rubin ◽  
John N. Whitaker ◽  
Toni L. Ceckler ◽  
Diana Nelson ◽  
Philip K. Gregory ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Myelin Basic Protein ◽  
Basic Protein ◽  
Radiation Myelopathy ◽  
Resonance Imaging

Anti-myelin antibodies do not allow earlier diagnosis of multiple sclerosis

2005 ◽  
Vol 11 (4) ◽  
pp. 492-494 ◽  
Author(s):  
E T Lim ◽  
T Berger ◽  
M Reindl ◽  
C M Dalton ◽  
K Fernando ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Multiple Sclerosis ◽  
Magnetic Resonance ◽  
Optic Neuritis ◽  
Myelin Basic Protein ◽  
Basic Protein ◽  
Myelin Oligodendrocyte Glycoprotein ◽  
Clinically Isolated Syndrome ◽  
Resonance Imaging

This study investigates whether the presence of serum and plasma anti-myelin oligodendrocyte glycoprotein (MOG) and anti-myelin basic protein (MBP) in patients presenting with a clinically isolated syndrome compatible with demyelination (CIS) predicts early conversion to multiple sclerosis (MS). Forty-seven patients with CIS (46 with optic neuritis) had anti-MOG and anti-MBP antibodies analysed at baseline, and clinical and magnetic resonance imaging assessments. There was no evidence that the MS status based on either the McDonald or Poser criteria relates to the antibody status.

In Vivo Biological Effects of Stereotactic Radiosurgery: A Primate Model

Neurosurgery ◽  
1990 ◽  
Vol 27 (3) ◽  
pp. 373-382 ◽  
Author(s):  
L. Dade Lunsford ◽  
Eric M. Altschuler ◽  
John C. Flickinger ◽  
Andrew Wu ◽  
Julio A. Martinez
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Basic Protein ◽  
Biological Effects ◽  
Resonance Imaging ◽  
Computed Tomographic ◽  
Protein Levels ◽  
Baboon Model ◽  
Computed Tomographic Scan

Abstract Single-fraction, closed skull, small-volume irradiation (radiosurgery) of intact intracranial structures requires accurate knowledge of radiation tolerance. We have developed a baboon model to assess the in vivo destructive radiobiological effects of stereotactic radiosurgery. Three baboons received a single-fraction, 150-Gy lesion of the caudate nucleus, the thalamus, or the pons using the 8-mm diameter collimator of the gamma unit. Serial standard neurodiagnostic tests (neurological examination, computed tomographic scan, magnetic resonance imaging, stable xenon-enhanced computed tomographic scan of cerebral blood flow, somatosensory and brain stem evoked potentials, and myelin basic protein levels of cerebrospinal fluid) were compared with preoperative studies. Magnetic resonance imaging revealed the development of a lesion at the target site between 45 and 60 days after irradiation. Deterioration of the brain stem evoked potentials preceded imaging changes when the lesion encroached on auditory pathways. Myelin basic protein levels increased subsequent to imaging changes. Postmortem neuropathological examination confirmed a well-demarcated radionecrosis of the target volume. The baboon model appears to be an excellent method to study the in vivo biological effects of radiosurgery.

Significance of gadolinium-enhanced magnetic resonance imaging in differentiating spinal cord radiation myelopathy from tumor

1992 ◽  
Vol 77 (4) ◽  
pp. 628-631 ◽  
Author(s):  
Toshihiro Yasui ◽  
Hisatoshi Yagura ◽  
Masaki Komiyama ◽  
Yoshihiko Fu ◽  
Yasunori Nagata ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Tumor Recurrence ◽  
Radiation Myelopathy ◽  
Resonance Imaging ◽  
Vertebral Level ◽  
Pertinent Literature ◽  
Content Type ◽  
Intramedullary Lesion ◽  
Progressive Neurological Deficit

✓ A young woman with a fourth ventricular ependymoma underwent radiotherapy following tumor excision. Twenty months later she developed a progressive neurological deficit at the C-2 vertebral level. Gadolinium-enhanced magnetic resonance imaging, showed an intramedullary lesion at the C-2 level. Although radiation myelopathy was suspected, tumor recurrence could not be excluded. Re-exploration and histopathology both confirmed a diagnosis of radiation myelopathy. A retrospective review of the case indicated findings favoring radiation myelopathy. The pertinent literature is reviewed and the findings discussed.

Functional information from magnetic resonance imaging

1995 ◽  
Vol 53 ◽  
pp. 84-85
Author(s):  
Alan P. Koretsky ◽  
Afonso Costa e Silva ◽  
Yi-Jen Lin
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
High Resolution ◽  
Cancer Biology ◽  
Imaging Modality ◽  
Magnetic Resonance Images ◽  
Great Success ◽  
Functional Information ◽  
Resonance Imaging ◽  
High Resolution Mri

Magnetic resonance imaging (MRI) has become established as an important imaging modality for the clinical management of disease. This is primarily due to the great tissue contrast inherent in magnetic resonance images of normal and diseased organs. Due to the wide availability of high field magnets and the ability to generate large and rapidly switched magnetic field gradients there is growing interest in applying high resolution MRI to obtain microscopic information. This symposium on MRI microscopy highlights new developments that are leading to increased resolution. The application of high resolution MRI to significant problems in developmental biology and cancer biology will illustrate the potential of these techniques.In combination with a growing interest in obtaining high resolution MRI there is also a growing interest in obtaining functional information from MRI. The great success of MRI in clinical applications is due to the inherent contrast obtained from different tissues leading to anatomical information.

Functional Magnetic Resonance Imaging Measures of Blood Flow Patterns in the Human Auditory Cortex in Response to Sound

1998 ◽  
Vol 41 (3) ◽  
pp. 538-548 ◽  
Author(s):  
Sean C. Huckins ◽  
Christopher W. Turner ◽  
Karen A. Doherty ◽  
Michael M. Fonte ◽  
Nikolaus M. Szeverenyi
Keyword(s):  
Magnetic Resonance Imaging ◽  
Blood Flow ◽  
Magnetic Resonance ◽  
Functional Magnetic Resonance Imaging ◽  
Functional Magnetic Resonance ◽  
Resonance Imaging ◽  
Speech Stimuli ◽  
Complex Stimuli ◽  
Scanning Session ◽  
Auditory Research

Functional Magnetic Resonance Imaging (fMRI) holds exciting potential as a research and clinical tool for exploring the human auditory system. This noninvasive technique allows the measurement of discrete changes in cerebral cortical blood flow in response to sensory stimuli, allowing determination of precise neuroanatomical locations of the underlying brain parenchymal activity. Application of fMRI in auditory research, however, has been limited. One problem is that fMRI utilizing echo-planar imaging technology (EPI) generates intense noise that could potentially affect the results of auditory experiments. Also, issues relating to the reliability of fMRI for listeners with normal hearing need to be resolved before this technique can be used to study listeners with hearing loss. This preliminary study examines the feasibility of using fMRI in auditory research by performing a simple set of experiments to test the reliability of scanning parameters that use a high resolution and high signal-to-noise ratio unlike that presently reported in the literature. We used consonant-vowel (CV) speech stimuli to investigate whether or not we could observe reproducible and consistent changes in cortical blood flow in listeners during a single scanning session, across more than one scanning session, and in more than one listener. In addition, we wanted to determine if there were differences between CV speech and nonspeech complex stimuli across listeners. Our study shows reproducibility within and across listeners for CV speech stimuli. Results were reproducible for CV speech stimuli within fMRI scanning sessions for 5 out of 9 listeners and were reproducible for 6 out of 8 listeners across fMRI scanning sessions. Results of nonspeech complex stimuli across listeners showed activity in 4 out of 9 individuals tested.

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