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扩散权重MRI作为结肠瘤中的定量成像生物标志物

Peter Obel Otto¹, Martina Kastrup Loft^1,2,3, Søren Rafael Rafaelsen^1,2,3

¹Department of Radiology, University Hospital of Southern Denmark, Beriderbakken 4, 7100 Vejle, Denmark.

|January 11, 2024

概括

定量扩散权重MRI (DW-MRI) 可以帮助区分良性结肠腺瘤和早期结肠癌. 粘性结肠癌可能表现出较少的扩散限制,这是诊断时需要考虑的因素.

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:

结肠癌的诊断依赖于成像和病理学.
区分良性腺瘤和恶性瘤对于治疗至关重要.
定量扩散权重MRI (DW-MRI) 提供了非侵入性组织表征的潜力.

研究的目的:

评估定量DW-MRI作为区分良性结肠腺瘤,早期和晚期结肠癌的生物标志物.
评估DW-MRI能够预测淋巴结参与的能力.
为了比较粘性结肠癌与腺瘤和非粘性结肠癌.

主要方法:

152名结肠瘤患者使用3.0特斯拉机进行了MRI.
瘤的平均明显扩散系数 (mADC) 被计算出来.
用瘤样本进行了基因病理学分类,通过T2图像评估粘膜癌症.

主要成果:

在结肠腺瘤和早期结肠癌之间观察到mADC的显著差异 (p < 0.001),AUC为0.80.
在良性瘤和粘膜性结肠癌之间发现了一个小但显著的mADC差异 (p = 0.039).
在早期和晚期结肠癌之间或淋巴结参与之间没有发现显著的mADC差异.

结论:

定量DW-MRI在区分良性结肠瘤和恶性瘤方面显示出前景.
粘性结肠癌与非粘性类型相比,具有较低的扩散限制,这可能会影响诊断解释.

关键词:

这是一个ADCADC ADC.酒后驾驶酒后驾驶酒后驾驶这就是为什么MRI是MRI.腺瘤腺瘤是一种结肠癌是什么意思结肠癌是什么意思扩散加权成像是一种扩散加权成像.粘膜性粘膜性

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