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Related Concept Videos

The Spinal Cord01:54

The Spinal Cord

The spinal cord is the body’s major nerve tract of the central nervous system, communicating afferent sensory information from the periphery to the brain and efferent motor information from the brain to the body. The human spinal cord extends from the hole at the base of the skull, or foramen magnum, to the level of the first or second lumbar vertebra.
Spinal Cord: Cross-sectional Anatomy01:16

Spinal Cord: Cross-sectional Anatomy

The cross-sectional anatomy of the spinal cord offers a detailed view of its complex structure and function within the central nervous system. At the core of the spinal cord lies the gray matter, characterized by its butterfly or "H"-shaped appearance in cross-section. This central region is enveloped by white matter, with the overall structure divided into symmetrical halves by the dorsal median sulcus and the ventral median fissure.
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Diffusion Tensor Magnetic Resonance Imaging in Chronic Spinal Cord Compression
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Sodium quantification in the spinal cord at 3T.

Bhavana S Solanky1, Frank Riemer, Xavier Golay

  • 1NMR Research Unit, Queen Square MS Centre, Department of Neuroinflammation, UCL Institute of Neurology, London, UK. b.solanky@ucl.ac.uk

Magnetic Resonance in Medicine
|March 8, 2013
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Summary

Researchers developed a new, non-invasive magnetic resonance spectroscopy technique to measure sodium concentration in the spinal cord. This method is fast, reproducible, and shows potential for clinical use in assessing neurological conditions.

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Area of Science:

  • Neuroscience
  • Medical Imaging
  • Biophysics

Background:

  • Sodium channels are crucial for neuronal function, making in vivo sodium concentration assessment highly desirable.
  • Advancements in magnetic resonance imaging (MRI) have renewed interest in brain sodium imaging.
  • Quantifying sodium in the spinal cord remains challenging due to technical difficulties.

Purpose of the Study:

  • To introduce a clinically feasible, non-invasive method for quantifying sodium in the spine using magnetic resonance spectroscopy (MRS).
  • To address the lack of established techniques for spinal cord sodium measurement.

Main Methods:

  • Sodium spectra were acquired from the cervical cord using image-selected in vivo spectroscopy (ISVS).
  • The acquisition time was approximately 14 minutes.
  • Quantification was performed using a reference phantom.

Main Results:

  • The developed MRS technique provided in vivo sodium concentration estimates of 31.2±2.4 mM in the cervical cord.
  • Repeat scans demonstrated good reproducibility, with a coefficient of variation below 6%.

Conclusions:

  • A novel, fast, and non-invasive technique for in vivo quantification of total sodium in the spinal cord has been presented.
  • The proposed method's simplicity suggests significant potential for clinical translation and application in diagnosing spinal cord conditions.