Magnetic Resonance Imaging in Infectious Spondylitis.

概要

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Fourteen cases of infectious spondylitis were evaluated with MRI. In addition, 32 cases of vertebral metastases and 25 cases of compression fractures were also evaluated to assess the possibility of differentiation from infectious spondylitis. Most infectious spondylitis showed low intensity on T1-weighted images and high intensity on T2*-weighted images from the vertebral bodies and intervertebral disc space and in all cases there was an inability to discern a margin between the disc and the adjacent vertebral body on both Ti and T2*-weighted images. In conparison half of the cases with vertebral metastases and most with benign compression fractures were isointense on both Ti and T2*-weighted images from intervertebral discs. Most cases of metastasis and fracture showed a clear margin between the disc and the vertebral body on both images. From the viewpoint of differential diagnosis, the presence of disc involvement and an unclear disc margin suggests spondylitis as compared to vertebral metastasis and benign compression fracture.
西日本整形・災害外科学会の論文