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斜视焦点-MUSE扩散加权成像MRI提高了直肠癌位置的准确性:一项前性观察研究

Jingjing Liu¹, Wei Sun², Shujie Zhang²

¹Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai, China (J.L., W.S., S.Z., G.M., L.D., M.Z., L.L.); Department of Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China (J.L., G.M., M.Z., L.L.); Shanghai Institute of Medical Imaging, Shanghai, China (J.L., G.M., M.Z., L.L.).

Academic radiology

|June 10, 2025

概括

在MRI中整合角FOCUS-MUSE扩散权重成像 (SDWI) 改善了直肠癌的分期. 这种增强的MRI协议提供了更准确的距离瘤的距离.

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:

准确的直肠癌手术前评估对于有效的患者管理至关重要.
磁共振成像 (MRI) 是局部分期的关键工具,但精确测量瘤边界可能具有挑战性.

研究的目的:

为了评估在直肠癌患者从瘤下边界到门边缘 (DTAV) 测量距离的准确性,在标准MRI协议中整合一个角FOCUS-MUSE扩散权重成像 (SDWI) 序列的影响.

主要方法:

96名直肠癌患者接受了刚性直肠镜检查 (RRS),PET/CT和直肠MRI,使用两种方案:常规序列 (方案1) 和常规序列加SDWI (方案2).
从两个MRI协议的DTAV测量与RRS和PET/CT进行了比较.
分析了观察者间一致性和相关系数;使用ROC曲线评估诊断性能.

主要成果:

协议2 (包括SDWI) 显示了优秀的观察者间协议,与PET/CT相美.
与协议1相比,协议2与RRS (r=0.969) 和PET/CT (r=0.974) 显示出明显更强的相关性.
协议2显示出优越的诊断性能,包括更高的灵敏度,特异性和AUC,用于识别低直肠癌.

结论:

将SDWI序列集成到标准MRI协议中显著提高了直肠癌DTAV测量的准确性.
这种精确度的提高有助于精确地定位瘤,为外科医生提供更好的手术前规划和临床决策.

关键词:

扩散权重成像技术的使用.位置位置位置这就是为什么MRI是MRI.这是直肠癌.

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Magnetic Resonance Imaging

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