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Follow-up of a Spinal Cord Infarction by the MRI Short Tau Inversion Recovery (STIR) Sequence ; Case Report Toshiaki Kotani 1 , Hiroyuki Motegi 1 , Hideyuki Nakajima 1 , Takahiro Otsuka 1 , Takashi Itabashi 2 1Department of Orthopedic Surgery, Naruto General Hospital 2Department of Orthopedic Surgery, Chiba Cardiovascular Center Keyword: spinal cord infarction , 脊髄梗塞 , short tau inversion recovery , STIR法 , spinal cord lesion , 脊髄髄内病変 pp.843-848
Published Date 2003/6/1
DOI https://doi.org/10.11477/mf.1408100746

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  • Abstract
  • Look Inside

 A 46-year-old man experienced the sudden onset of muscle weakness and sensory disturbance in the upper and lower extremities. Neurological examination revealed paralysis and superficial sensory impairment below the C6 level of the spinal cord. Magnetic resonance imaging (MRI) revealed a linear high-intensity intramedullary lesion on T2-weighted images at the C4/5 level, and spinal cord infarction was diagnosed based on the MRI findings and clinical manifestations.

 Follow-up MRI scans revealed a better defined intramedullary hyperintense signal on the short tau inversion recovery (STIR) images at the C4/5 level than the signal on the T2-weighted images. The lesion decreased and the patients symptoms gradually improved. Post-contrast T1-weighted images failed to show enhancement of the infarct lesion.

 MRI is the optimal imaging modality for detecting and following up spinal cord infarcts. T2-weighted images visualize infarcts as a high-signal lesions, whereas contrast-enhanced T1-weighted images do not show an enhanced region until 1-3 weeks after its occurrence. In contrast to conventional T1-weighted and T2-weighted images, STIR images are useful for detecting and following up less severe infarctions in the acute and chronic stages that can not be diagnosed by contrast enhancement on MRI. Thus, the STIR sequence should be acquired to assess spinal cord infarcts.


Copyright © 2003, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1286 印刷版ISSN 0557-0433 医学書院

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