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接种COVID-19疫苗后的股淋巴结病:在MR成像上对扩大的淋巴结的随访
Noriko Kanemaru1,2, Takeharu Yoshikawa1, Soichiro Miki1
1Department of Computational Diagnostic Radiology and Preventive Medicine, The University of Tokyo Hospital, Tokyo, Japan.
随访MRI显示,与COVID-19疫苗接种相关的扩大状淋巴结的大小和T2加权信号强度在大约一年内下降. 表面扩散系数 (ADC) 值保持不变,表明淋巴腺病的解决.
科学领域:
- 放射学 放射学是一门学科.
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
背景情况:
- 接种COVID-19疫苗可能会导致暂时的股淋巴腺病变.
- 这种情况的纵向成像特征尚未得到充分确立.
- 了解这些变化对于准确的诊断和管理至关重要.
研究的目的:
- 为了研究COVID-19疫苗接种相关的状淋巴腺病变的纵向MRI特征.
- 为了评估淋巴结大小,T2加权信号强度和明显扩散系数 (ADC) 随时间变化的变化.
- 为基于证据的指导方针提供数据,以评估疫苗接种后淋巴腺病.
主要方法:
- 从健康查参与者的全身轴向MRI的回顾性分析.
- 在COVID-19疫苗接种后,识别患有下淋巴腺病的个体.
- 淋巴结大小,T2信号强度和ADC值在最初的疫苗接种后MRI和大约一年后的随访MRI之间进行比较.
主要成果:
- 在接种疫苗后,分析了76名下淋巴结扩大 (短轴≥5毫米) 的参与者.
- 随访时,淋巴结的中位数从7x9毫米减少到4x6毫米.
- 与肌肉相比,T2加权的中位数信号强度显著下降 (5.1至3.6,P<.0001),而ADC值保持稳定,处于正常范围内.
结论:
- 与COVID-19疫苗接种相关的状淋巴腺病变在随访时显著减少了T2信号的大小和强度.MRI.
- 表面扩散系数 (ADC) 值保持不变,表明分辨率.
- 这些发现支持疫苗接种后淋巴腺病的良性和短暂性质,并可以为临床管理提供信息.
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