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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT00280306
Other study ID # 1-Voss
Secondary ID
Status Completed
Phase N/A
First received January 17, 2006
Last updated June 2, 2015
Start date November 2005
Est. completion date October 2008

Study information

Verified date June 2015
Source Weill Medical College of Cornell University
Contact n/a
Is FDA regulated No
Health authority United States: Institutional Review Board
Study type Observational

Clinical Trial Summary

White matter fiber tracking may provide a novel tool to assess the integrity of injured motor tracts in the cervical spine. It provides information about fiber directions which is not given by conventional MRI. White matter fiber tracking in the brain is used at several institutions, including our own medical college, for presurgical planning of tumor excision. We believe that the technical and clinical experience gained for the brain can be applied to fiber tracking in the cervical spine as well.


Description:

White matter fiber tracking may provide a novel tool to assess the integrity of injured motor tracts in the cervical spine. It provides information about fiber directions which is not given by conventional MRI. White matter fiber tracking in the brain is used at several institutions, including our own medical college, for presurgical planning of tumor excision. We believe that the technical and clinical experience gained for the brain can be applied to fiber tracking in the cervical spine as well. White matter fiber tracking in the cervical spine has some important clinical applications:

- A better understanding of the relationship between abnormal cervical spinal anatomy and the impact on fiber tracts would be helpful in determining the best treatment for a particular patient. It may be able to define the indication and role of surgical decompression and stabilization based on quantifiable and reproducible data obtained with this new imaging technology.

- It could help the surgeon to determine what type of surgical approach to choose (anterior versus posterior surgery, depending on the degree of compression / impingement on nerve fibers).

- Correlation between quantitative diffusion measures and spinal cord injury may be used in monitoring the response to treatment and may therefore be an important parameter for clinicians to follow.

- White matter fiber tracking may also help to determine the pathophysiology underlying cervical spondylotic myelopathy. Currently, there is a debate as to whether cervical spondylitic myelopathy is caused mainly by compressive narrowing of the spinal canal, which may lead to focal ischemia and tissue injury, or whether excessive motion due to cervical spondylosis results in increased strain and shear of spinal axons resulting in injury (Henderson et al., Neurosurgery 56(5):1101-13, 2005). If the latter is correct one would expect diffusion changes along the course of white matter tracks above and below the spondylotic changes.

We will first study a pool of 15 normal control subjects to refine our data acquisition and postprocessing tools, and to sample quantitative diffusion based data for the normal cervical spine. A second group of subjects will include 10 patients with significant cervical spondylosis and upper extremity radiculopathy without myelopathy. The third group will be 10 patients with cervical spondylosis and signs and symptoms of myelopathy. The two patient groups will allow us to define systematic differences between normal values and values in the injured spine.

The DTI data will be processed using tools for artifact correction first and then tools for rendering T2 weighted images, diffusion weighted images, ADC maps and FA values.


Recruitment information / eligibility

Status Completed
Enrollment 35
Est. completion date October 2008
Est. primary completion date October 2008
Accepts healthy volunteers Accepts Healthy Volunteers
Gender Both
Age group 21 Years and older
Eligibility Inclusion Criteria:

Normal controls Spinal cord injury

Exclusion Criteria:

Study Design

Observational Model: Case Control, Time Perspective: Cross-Sectional


Related Conditions & MeSH terms


Intervention

Other:
No interventions
No intervention

Locations

Country Name City State
United States Weill Medical College of Cornell New York New York

Sponsors (2)

Lead Sponsor Collaborator
Weill Medical College of Cornell University Cervical Spine Research Society

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Imaging study of white matter in spinal cord; define systematic differences between normal values and values in the injured spine Up to 3 years No
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