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Is any landmark reliable in vertebral enumeration? A study of 3.0-Tesla lumbar MRI comparing skeletal, neural, and vascular markers

  • Derya Tureli
    Correspondence
    Corresponding author. Marmara Univ. Pendik EAH, Radyoloji AD, Fevzi Cakmak Mahallesi Mimar Sinan Caddesi No: 41, 34899 Ust Kaynarca Pendik, Istanbul, Turkey. Tel.: +90-505-785-13-37.
    Affiliations
    Marmara Univ. Pendik EAH, Radyoloji AD, Fevzi Cakmak Mahallesi Mimar Sinan Caddesi No: 41, 34899 Ust Kaynarca Pendik, Istanbul, Turkey
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  • Author Footnotes
    1 Tel.: +90-543-495-95-34.
    Gazanfer Ekinci
    Footnotes
    1 Tel.: +90-543-495-95-34.
    Affiliations
    Marmara Univ. Pendik EAH, Radyoloji AD, Fevzi Cakmak Mahallesi Mimar Sinan Caddesi No: 41, 34899 Ust Kaynarca Pendik, Istanbul, Turkey
    Search for articles by this author
  • Author Footnotes
    2 Tel.: +90-532-297-76-49.
    Feyyaz Baltacioglu
    Footnotes
    2 Tel.: +90-532-297-76-49.
    Affiliations
    Marmara Univ. Pendik EAH, Radyoloji AD, Fevzi Cakmak Mahallesi Mimar Sinan Caddesi No: 41, 34899 Ust Kaynarca Pendik, Istanbul, Turkey
    Search for articles by this author
  • Author Footnotes
    1 Tel.: +90-543-495-95-34.
    2 Tel.: +90-532-297-76-49.

      Abstract

      Purpose

      This study aimed to determine the reliability of the iliolumbar ligament (ILL), 12th costa, aortic bifurcation (AB), right renal artery (RRA), and conus medullaris (CM) for numbering of vertebral segments.

      Subjects and methods

      Five hundred five patients underwent routine lumbar MRI examinations including a cervicothoracic sagittal scout and T1 and T2-weighted sagittal and axial turbo spin echo images. Images were evaluated by two radiologists separately.

      Results

      The identifiability of ILL and 12th costa were 85.7% and 48.1%. AB, RRA, and CM were located more caudally in lumbarized S1 and more cranially in sacralized L5 cases.

      Conclusion

      Landmarks suggested by previous studies are not reliable alternatives to cervicothoracic scout images due to wide ranges of distribution and inconsistencies in identification.

      Keywords

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