在内镜下膜剖析 (ESD) 之前的直肠MRI的值:一个探索性研究
Marc J Gollub1, Maria Clara Fernandes1, Wyanne Law1
1Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
European journal of radiology
|October 1, 2025
概括
直肠MRI大小和壁附着与内镜下粘膜剖析 (ESD) 期间成功切除瘤相关. 较小的息肉大小和较少的壁附着预测直肠腺瘤和早期癌症的明显切除边缘.
科学领域:
- 胃肠病学 胃肠病学
- 放射学 放射学是一门学科.
- 在瘤学瘤学.
背景情况:
- 内镜下粘膜切割 (ESD) 是早期直肠瘤的关键治疗方法.
- 对瘤特征进行准确的术前评估对于成功的ESD至关重要.
- 直肠MRI为直肠腺瘤和早期癌症的非侵入性评估提供了潜力.
研究的目的:
- 为了将治疗前的直肠MRI发现与内镜边缘状态和入侵深度相关联.
- 评估MRI特征与在ESD手术中实现R0切除之间的关联.
- 确定MRI在预测直肠腺瘤和早期癌症中成功切除瘤方面的实用性.
主要方法:
- 对21名接受ESD治疗的患者治疗前直肠MRI的回顾性审查.
- 两位失明的放射科医生评估了MRI特征:大小,T2信号强度,壁附着和扩散参数.
- 组织病理学作为参考标准;统计分析将MRI发现与R0切除和入侵深度相关联.
主要成果:
- 在21名患者中,12名患有腺癌,9名患有腺瘤;R0切除在52.3%的ESD中实现.
- 较小的质量大小 (长轴和短轴) 和较低的壁附着度与R0切除有显著的关联.
- 对于评估的MRI测量,读者之间的一致性是好到低,对大小和T2信号强度的一致性更高.
结论:
- 直肠MRI聚的大小和壁附着度与ESD中无瘤切除边缘有负相关性.
- 这些MRI特征可能有助于预测实现完整瘤切除的可能性.
- 需要进一步的研究,以在更大的队列中验证这些发现.
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