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微观结构差异的扩散加权和扩散曲解成像分析清细胞细胞癌:一个比较研究

Jinzhao Zou¹, Jing Ye¹, Wenrong Zhu¹

¹Department of Medical Imaging, Clinical Medical College, Yangzhou University, Yangzhou, China.

The British journal of radiology

|July 2, 2023

概括

与常规的扩散权重成像 (DWI) 相比,扩散曲解成像 (DKI) 显示出更高的诊断价值,用于清细胞细胞癌 (CRCC) 的分级. 像平均扩散度 (MD) 这样的DKI指标有效地区分瘤等级.

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:

清细胞细胞癌 (CRCC) 的分级对于预后和治疗至关重要.
传统的扩散权重成像 (DWI) 提供了微观结构信息,但在区分CRCC等级方面存在局限性.
扩散曲解成像 (DKI) 为DWI之外的组织微观结构提供了先进的见解.

研究的目的:

量化比较DWI和DKI的诊断性能,以评估CRCC分级的微结构差异.
确定哪种成像技术在区分低度CRCC和高度CRCC方面更有效.

主要方法:

分析了108名病理确诊的CRCC患者.
计算了表面扩散系数 (ADC),平均扩散率 (MD),平均缩量 (MK),缩量异型性 (KA) 和辐射缩量 (RK).
用接收器操作特征 (ROC) 曲线分析来比较诊断效率.

主要成果:

ADC和MD值与CRCC瘤分级负相关.
MK,KA和RK值与CRCC瘤分级正相关.
MD在区分低/高和II/III级CRCC方面表现出最高的诊断效果,AUC为0.937.

结论:

在区分CRCC等级方面,DKI分析,特别是MD,与传统ADC相比,显示出更高的诊断价值.
DKI为CRCC分级提供了比DWI更敏感的微结构信息.

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