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前列腺癌中的多参数MRI放射学用于预测Ki-67表达和格里森得分:一个多中心的回顾性研究

Chuan Zhou¹, Yun-Feng Zhang², Sheng Guo²

¹The First Clinical Medical College of Lanzhou University, Lanzhou, 73000, China.

Discover oncology

|July 20, 2023

概括

这项研究开发了基于MRI的放射学特征,以预测侵略性前列腺癌 (PCa) 的特征,如高Ki-67表达和格里森得分 (GS). 这些放射学特征可以准确预测结果,并可以改善PCa患者的临床决策.

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:

在前列腺癌 (PCa) 中,高基-67表达和格里森评分 (GS) 表明了侵袭性疾病和不良预后.
准确预测这些标记物对于有效的治疗计划至关重要.

研究的目的:

开发和验证基于MRI的放射学特征,用于预测PCa中的Ki-67表达状态和GS.
评估这些放射性特征对PCa患者生存的预后价值.

主要方法:

从三所机构的170名PCa患者收集了T2WI,DWI和ADC图像.
提取了321个放射性特征,并使用SVM和LASSO回归来进行特征选择和模型构建.
使用ROC分析,DCA和卡普兰-梅尔测试验证模型性能.

主要成果:

开发了具有15和9特征的放射学特征,与病态Ki-67和GS显著相关.
预测模型的AUC值为0.813 (培训) 和0.793 (验证).
放射学预测的高Ki-67和GS显著与两组数据中的整体存活率差相关.

结论:

基于MRI的放射学特征可以准确预测PCa中的Ki-67表达状态和GS.
这些签名显示出预后价值,与患者生存结果相关联.
开发的SVM和Lasso分类器模型可以增强PCa管理的临床决策.

关键词:

格里森得分格里森得分在 Ki-67 机器人机器学习机器学习磁共振成像 (MRI) 是一种磁共振成像.前列腺癌是什么意思前列腺癌是什么意思无线电学 (Radiomics) 是一种无线电学.

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