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Diffusion Tensor Magnetic Resonance Imaging in Chronic Spinal Cord Compression
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Diffusion tensor imaging in the cervical spinal cord.

Ting Song1, Wen-Jun Chen, Bo Yang

  • 1Department of Radiology, The Third Affiliated Hospital of Guangzhou Medical University, No 63 Duobao Road, Guangdong, 510150 Guangzhou, China. china_doctor@163.com

European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society
|October 13, 2010
PubMed
Summary
This summary is machine-generated.

Diffusion tensor imaging (DTI) detects spinal cord lesions missed by conventional MRI in cervical spondylotic myelopathy. DTI reveals intramedullary microstructural changes, improving diagnosis of this condition.

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Area of Science:

  • Neurology
  • Radiology
  • Biomedical Engineering

Background:

  • Conventional MRI may not reveal cervical cord compression in early-stage or symptomatic spondylotic myelopathy.
  • Detecting intramedullary lesions is crucial for accurate diagnosis and management.

Purpose of the Study:

  • To evaluate the efficacy of diffusion tensor imaging (DTI) in detecting intramedullary lesions in cervical compressive myelopathy.
  • To compare DTI findings with conventional MRI in patients with cervical spondylotic myelopathy.

Main Methods:

  • Prospective study involving 53 patients with cervical compressive myelopathy and 20 healthy volunteers.
  • Diffusion tensor imaging (DTI) using a single-shot spin echo echo-planar imaging (EPI) sequence with six non-collinear diffusion directions.
  • Measurement of intramedullary apparent diffusion coefficient (ADC) and fractional anisotropy (FA) values in specific cervical cord segments.

Main Results:

  • Conventional MRI identified lesions in only 24 cases, while DTI revealed abnormalities in 39 cases.
  • Significant differences in ADC and FA values were observed between lesional/compressed cord and normal cord in patients (P < 0.01).
  • Healthy volunteers' cervical cords showed blue on color DTI maps, with highest FA at C2/3, decreasing caudally.

Conclusions:

  • Diffusion tensor imaging (DTI) is superior to conventional MRI for detecting intramedullary lesions in cervical compressive myelopathy.
  • DTI provides valuable insights into spinal cord microstructure, aiding in the diagnosis of subtle or early-stage myelopathy.
  • The study highlights DTI's potential to improve diagnostic accuracy and patient management in cervical spondylotic myelopathy.