Dynamic Weight-bearing Cervical Magnetic Resonance Imaging: Technical Review and Preliminary Results

Background: Conventional magnetic resonance imaging (MRI) of complex cervical spine disorders may underestimate the magnitude of structural disease because imaging is performed in a nondynamic non-weight-bearing manner. Myelography provides additional information but requires an invasive procedure. Methods: This was a prospective review of the first 20 upright weight-bearing cervical MRI procedures with patients in the flexed, neutral, and extended positions conducted in an open-configuration MRI unit. Results: This technique clearly illustrated the changes in spinal cord compression, angulation, and spinal column alignment that occur during physiologic movements with corresponding changes in mid-sagittal spinal canal diameter (P < 0.05). Image quality was excellent or good in 90% of the cases. Conclusions: Dynamic weight-bearing MRI provides an innovative method for imaging complex cervical spine disorders. This technique is noninvasive and has adequate image quality that may make it a good alternative to cervical myelography.

[1]  M. Zanetti,et al.  Positional MR imaging of the lumbar spine: does it demonstrate nerve root compromise not visible at conventional MR imaging? , 2000, Radiology.

[2]  L. Claes,et al.  New in vivo measurements of pressures in the intervertebral disc in daily life. , 1999, Spine.

[3]  S. Wildermuth,et al.  Changes in cross-sectional measurements of the spinal canal and intervertebral foramina as a function of body position: in vivo studies on an open-configuration MR system. , 1999, AJR. American journal of roentgenology.

[4]  H. Mehdorn,et al.  Kinematic MR Imaging in Surgical Management of Cervical Disc Disease, Spondylosis and Spondylotic Myelopathy , 1999, Acta radiologica.

[5]  F. Jolesz,et al.  Functional MRI of the lumbar spine in erect position in a superconducting open‐configuration MR system: Preliminary results , 1998, Journal of magnetic resonance imaging : JMRI.

[6]  D. Resnick,et al.  Classification system based on kinematic MR imaging in cervical spondylitic myelopathy. , 1998, AJNR. American journal of neuroradiology.

[7]  J. von Kempis,et al.  Functional MR imaging of the cervical spine in patients with rheumatoid arthritis , 1998, Acta radiologica.

[8]  J. Wiskirchen,et al.  Dynamic changes of the spinal canal in patients with cervical spondylosis at flexion and extension using magnetic resonance imaging. , 1998, Investigative radiology.

[9]  A Benini,et al.  Lumbar spine: quantitative and qualitative assessment of positional (upright flexion and extension) MR imaging and myelography. , 1998, Radiology.

[10]  D. Weinert,et al.  Biomechanical Aspects of the Subarachnoid Space and Cervical Cord in Healthy Individuals Examined With Kinematic Magnetic Resonance Imaging , 1998, Spine.

[11]  S. B. Peterman.  Postmyelography headache: a review. , 1996, Radiology.

[12]  K. Stearns,et al.  Flexion-extension MRI of the upper rheumatoid cervical spine. , 1991, Orthopedics.

[13]  T. Hansson,et al.  Dynamic changes in the dimensions of the lumbar spinal canal: An experimental study in vitro , 1989, Journal of orthopaedic research : official publication of the Orthopaedic Research Society.

[14]  F. Scholz,et al.  Outpatient metrizamide myelography: prospective evaluation of safety and cost effectiveness. , 1986, Radiology.

[15]  F. Hartmann,et al.  Biomechanical properties of human intervertebral discs subjected to axial dynamic compression--influence of age and degeneration. , 1986, Journal of biomechanics.

[16]  Skalpe Io.  Adverse effects of water-soluble contrast media in myelography, cisternography and ventriculography. A review with special reference to metrizamide. , 1977 .

[17]  I. Skalpe.  Adverse effects of water-soluble contrast media in myelography, cisternography and ventriculography. A review with special reference to metrizamide. , 1977, Acta radiologica. Supplementum.

[18]  A. White,et al.  Biomechanical analysis of clinical stability in the cervical spine. , 1975, Clinical orthopaedics and related research.

[19]  G. Elfström,et al.  Intravital dynamic pressure measurements in lumbar discs. A study of common movements, maneuvers and exercises. , 1970, Scandinavian journal of rehabilitation medicine. Supplement.

[20]  O. Hassler,et al.  Effects of mechanical stresses on the spinal cord in cervical spondylosis. A study on fresh cadaver material. , 1966, Journal of neurosurgery.

[21]  A. Nachemson,et al.  Lumbar intradiscal pressure. Experimental studies on post-mortem material. , 1960, Acta orthopaedica Scandinavica. Supplementum.