Scholarlink

Background <p>The diagnosis of isolated posterior inferior cerebellar artery (PICA) dissection poses challenges because of the diminutive caliber and convoluted nature of these vessels. This report aimed to highlight the potential superiority of susceptibility-weighted imaging (SWI) in the early detection of intramural hematoma.</p> Case presentation <p>We encountered a case of transient lateral medullary syndrome by isolated PICA dissection. The diagnosis was based on observation of chronological changes on magnetic resonance angiography and the appearance of subtle signal on T1-sampling perfection with application-optimized contrasts using different flip angle evolutions (T1-SPACE) in the proximal portion of the PICA. Intramural hematoma on SWI appeared earlier and was more conspicuous than signal changes seen on T1-SPACE.</p> Conclusion <p>The standard diagnostic criteria for intracranial artery dissection do not include SWI findings; however, the present findings indicate that SWI may offer superior diagnostic efficacy to T1-SPACE, especially in the early stage and after the onset of isolated PICA dissection with a small amount of intramural hematoma.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Susceptibility-weighted imaging is a key diagnostic tool for isolated posterior inferior cerebellar arterial dissection: a case report

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年5月29日

查看全文
  • Yoshitaka Nakayama,
  • Teppei Komatsu,
  • Yasuyuki Iguchi

摘要

Background

The diagnosis of isolated posterior inferior cerebellar artery (PICA) dissection poses challenges because of the diminutive caliber and convoluted nature of these vessels. This report aimed to highlight the potential superiority of susceptibility-weighted imaging (SWI) in the early detection of intramural hematoma.

Case presentation

We encountered a case of transient lateral medullary syndrome by isolated PICA dissection. The diagnosis was based on observation of chronological changes on magnetic resonance angiography and the appearance of subtle signal on T1-sampling perfection with application-optimized contrasts using different flip angle evolutions (T1-SPACE) in the proximal portion of the PICA. Intramural hematoma on SWI appeared earlier and was more conspicuous than signal changes seen on T1-SPACE.

Conclusion

The standard diagnostic criteria for intracranial artery dissection do not include SWI findings; however, the present findings indicate that SWI may offer superior diagnostic efficacy to T1-SPACE, especially in the early stage and after the onset of isolated PICA dissection with a small amount of intramural hematoma.