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卵巢瘤的MRI特征,包括体型恶性瘤和成熟的囊性瘤

Takahiko Nakazono¹, Yutaka Yoshinaga², Ken Yamaguchi²

¹Department of Radiology, Faculty of Medicine, Saga University, Nabeshima 5-1-1, Saga City, Saga, Japan. nakazot@cc.saga-u.ac.jp.

Abdominal radiology (New York)

|June 10, 2024

概括

磁共振成像 (MRI) 可以区分卵巢瘤与体型恶性瘤 (TSMs) 和良性成熟囊性瘤 (MCTs). TSM较大,具有特定的MRI特征,包括动态对比增强MRI (DCE MRI) 的高风险时间强度曲线.

科学领域:

放射学放射学是一门学科.
在瘤学瘤学.
妇科病理学妇科病理学

背景情况:

卵巢瘤是一种常见的生殖细胞瘤.
成熟的囊性瘤 (MCTs) 是良性的,而体型恶性瘤 (TSMs) 的瘤是罕见的和攻击性的.
准确的区分对于适当的患者管理至关重要.

研究的目的:

评估磁共振成像 (MRI) 功能的诊断性能,以区分卵巢TSM和良性MCT.
为了确定分辨这两种类型的卵巢瘤之间的特定MRI特征.

主要方法:

在10个卵巢TSM和193个卵巢MCT中对MRI结果进行了回顾性比较.
在动态对比增强MRI (DCE MRI) 上分析病变大小,脂肪组织的存在,环状增强和时间强度曲线 (TIC).
接收器操作特征 (ROC) 分析,以评估已识别的MRI特征的诊断准确性.

主要成果:

卵巢TSM比MCT大得多,具有更大的固体组件.
脂肪组织和环状增强在MCT中很常见,但在TSM中不存在.
在DCEMRI上,TSM主要显示高风险或中等风险的TIC,而MCT通常显示低风险的TIC (97.4%).
使用DCE MRI TIC,ROC分析显示高精度 (97.6%) 将TSM与MCT区分开来,曲线下的面积为0.99.

结论:

卵巢TSM的特点是更大的尺寸和固体组件,在DCEMRI上具有高或中等风险的TIC.
卵巢MCT通常在DCEMRI上呈现较小的固体成分,脂肪组织,环状增强和低风险的TIC.
核磁共振,特别是带有TIC分析的DCE核磁共振,是区分卵巢TSM与MCT的宝贵工具.

关键词:

磁共振成像技术磁共振成像技术恶性转变的恶性转变身体类型的恶性瘤甲状腺瘤 (teratoma) 是一种瘤.

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