在椎体计数中，有哪个标志性结构是可靠的？一项对3.0特斯拉腰椎MRI的研究，比较骨骼、神经和血管标志物。
Is any landmark reliable in vertebral enumeration? A study of 3.0-Tesla lumbar MRI comparing skeletal, neural, and vascular markers.
作者信息
Tureli Derya, Ekinci Gazanfer, Baltacioglu Feyyaz
机构信息
Marmara Univ. Pendik EAH, Radyoloji AD, Fevzi Cakmak Mahallesi Mimar Sinan Caddesi No: 41, 34899 Ust Kaynarca Pendik, Istanbul, Turkey.
出版信息
Clin Imaging. 2014 Nov-Dec;38(6):792-6. doi: 10.1016/j.clinimag.2014.05.001. Epub 2014 May 12.
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.
目的
本研究旨在确定髂腰韧带（ILL）、第12肋、主动脉分叉（AB）、右肾动脉（RRA）和脊髓圆锥（CM）用于椎体节段编号的可靠性。
对象与方法
505例患者接受了常规腰椎MRI检查，包括颈胸矢状位定位像以及T1加权和T2加权矢状位及轴位快速自旋回波图像。由两名放射科医生分别对图像进行评估。
结果
ILL和第12肋的可识别率分别为85.7%和48.1%。在腰椎化S1病例中，AB、RRA和CM的位置更靠尾侧，而在骶化L5病例中则更靠头侧。
结论
由于分布范围广泛且识别存在不一致性，先前研究中提出的解剖标志并非颈胸定位像的可靠替代方法。
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