title: A blast from the past!: The value of adding single slice magnetic resonance myelography sequence to magnetic resonance imaging of the spine; a flashback to the conventional myelography of the past.
abstract: BACKGROUND
  The study was undertaken to determine whether a single slice magnetic resonance (MR) myelogram sequence improves the interpretation and diagnostic yield for magnetic resonance imaging (MRI) of the spine.
  
  
  METHODS
  A total of 100 cases with positive findings were retrospectively reviewed. All patients had initial imaging with sagittal T1-weighted (T1-W) and T2-weighted (T2-W) scans, followed by axial T2-W images. Subsequently, a heavily T2-W single slice MR myelogram sequence was acquired in coronal and sagittal planes. The MR myelogram images were evaluated initially by a radiologist, and, further independently reviewed, by a neurologist, neurosurgeon, and spine surgeon. The utility of the MR myelogram in establishing the diagnosis was graded on a 4-point scale.
  
  
  RESULTS
  Out of 100 cases, 53% showed degenerative spine or disc disease, 14% space occupying lesions, 13%, congenital lesions, 7% infection, and 7% other conditions. The MR myelogram contributed additional information in 50-74% cases. The intraclass correlation coefficient showed overall good agreement between observers in grading the utility of MR myelogram.
  
  
  CONCLUSIONS
  Single slice MR myelography is noninvasive avoiding the complications associated with lumbar punctures/intrathecal contrast injections, while image acquisition takes only an added 6-8 s. Although MR myelogram has no value as a stand-alone sequence, its inherent advantage is that it completes the overview of the spinal pathology in entirety, and adds vital three-dimensional information in 50-74% of cases.
authors.affiliation: Department of Radiodiagnosis, Kasturba Medical college, Manipal University, Mangalore, Karnataka, India.
authors.forename: P V Santosh
authors.initials: PV
authors.lastname: Rai
authors.affiliation: Department of Radiodiagnosis, Kasturba Medical college, Manipal University, Mangalore, Karnataka, India.
authors.forename: K
authors.initials: K
authors.lastname: Santosh
authors.affiliation: Department of Pathology, Kasturba Medical college, Manipal University, Mangalore, Karnataka, India.
authors.forename: Shrijeet
authors.initials: S
authors.lastname: Chakraborti
authors.affiliation: Department of Neurology, Kasturba Medical college, Manipal University, Mangalore, Karnataka, India.
authors.forename: Shivananda
authors.initials: S
authors.lastname: Pai
authors.affiliation: Department of Spine Surgery, Kasturba Medical college, Manipal University, Mangalore, Karnataka, India.
authors.forename: Ishwara
authors.initials: I
authors.lastname: Keerthi
authors.affiliation: Department of Neurosurgery, Kasturba Medical college, Manipal University, Mangalore, Karnataka, India.
authors.forename: Muralidhar K
authors.initials: MK
authors.lastname: Pai
keywords: Magnetic resonance imaging; magnetic resonance myelography; myelogram; spine