动态对比增强磁共振成像和扩散权重成像特征的膜软部肉瘤的动态对比增强磁共振成像和扩散权重成像特征
Changlei Lv1, Xiaolei Xue2, Minggang Huang1
1Department of Radiology, Shaanxi Provincial People's Hospital, Xi'an, China.
Quantitative imaging in medicine and surgery
|October 23, 2023
概括
年轻成年人的膜软部肉瘤 (ASPS) 经常出现在MRI上,具有明亮的T1WI,T2WI和DWI信号,以及流空隙和早期增强,有助于诊断.
科学领域:
- 放射学 放射学是一门学科.
- 在瘤学瘤学.
- 医疗成像医学成像
背景情况:
- 膜软部肉瘤 (ASPS) 是一种罕见的恶性瘤,影响青少年和年轻成年人.
- 早期诊断对于有效治疗和改善结果至关重要.
- ASPS的诊断成像特征需要进一步划分.
研究的目的:
- 为了追溯分析ASPS的成像特征.
- 强调动态对比增强MRI (DCE-MRI) 和扩散加权成像 (DWI) 的发现.
- 识别可向放射科医生提出ASPS诊断的关键成像特征.
主要方法:
- 在34名病理确诊的肢体ASPS患者的成像特征的回顾性分析.
- 对23名患者的动态对比增强MRI (DCE-MRI) 数据的审查.
- 对12名患者的扩散权重成像 (DWI) 数据的审查.
主要成果:
- ASPS主要发生在下肢 (31/34例).
- 核磁共振显示T2WI/FS-T2WI的异质高信号强度,T1WI的轻微超强度,以及薄的低强度波段.
- 所有病例都显示出瘤内部和周围的流量空隙;12/12显示出高DWI信号,平均ADC为 (0.86±0.07) ×10-3 mm2 / s.
- DCE-MRI 显示了早期动脉增强和缓慢冲洗 (23/23 个案例) 的持续增强.
结论:
- 在青少年和年轻人中,ASPS通常会影响下肢.
- 典型的MRI发现包括高强度T1WI,T2WI和DWI信号.
- 低ADC值,流量空隙和早期动脉增强是暗示ASPS的常见特征.
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