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用明显扩散系数对直肠癌淋巴结分期进行MRI评估

Ingrida Pikūnienė¹, Žilvinas Saladžinskas², Algidas Basevičius¹

¹Department of Radiology, Hospital of Lithuanian University of Health Sciences Kauno Klinikos, Kaunas, LTU.

|September 13, 2023

概括

表面扩散系数 (ADC) MRI显示了直肠瘤和淋巴结的明显ADC值,有助于癌症分期. 治疗类型会影响淋巴结中的ADC值,影响诊断准确度.

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:

结肠直肠癌是全球领先的癌症诊断.
淋巴结转移显著影响患者的预后.
像扩散权重成像 (DWI) 等先进的MRI技术对于检测淋巴结转移至关重要.

研究的目的:

评估表面扩散系数 (ADC) MRI 在分期直肠癌淋巴结转移中的有效性.
为了比较瘤和淋巴结之间的ADC值.
评估不同治疗方式 (化疗与化疗放射治疗) 对ADC值的影响.

主要方法:

对89名II-III期直肠癌患者进行前性研究.
所有患者都接受了1.5TMRI,T2加权和DWI序列.
在瘤,淋巴结和直肠壁上定义了感兴趣的区域,以计算ADC值.

主要成果:

结直肠癌的ADC显示AUC为0.688 (截止值:0.99 x 10-3 mm2/s).
淋巴结ADC显示AUC为0.508 (截止点:0.9 x 10-3mm2/s). 淋巴结ADC显示AUC为0.508 (截止点:0.9 x 10-3mm2/s). 淋巴结ADC显示AUC为0.508 (截止点:0.9 x 10-3mm2/s). 淋巴结ADC显示AUC为0.508 (截止点:0.9 x 10-3mm2/s). 淋巴结ADC显示AUC为0.508 (截止点:0.9 x 10-3mm2/s).
瘤和淋巴结ADC值之间没有发现相关性. 治疗类型影响了 inguinal 淋巴结中的 ADC 差异.

结论:

ADC-MRI可以区分直肠瘤和淋巴结.
淋巴结中的ADC值根据接受的治疗而有所不同.
ADC-MRI显示了改善直肠癌中淋巴结分期的潜力.

关键词:

看似的扩散系数.扩散权重成像技术的使用.淋巴结中的淋巴结.磁共振成像技术的使用这是直肠癌.

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