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基于时间强度曲线的对比增强超声波评估IgG4相关的自身免疫胰腺炎:单中心前性研究

Minhui Lu¹, Hui Wang², Yiwen Wang³

¹Chinese PLA Medical School, PLA General Hospital, Beijing; and Department of Rheumatology and Immunology, The Fourth Medical Center of PLA General Hospital, Beijing, China.

Clinical and experimental rheumatology

|October 22, 2024

概括

使用时间强度曲线 (TIC) 的对比增强超声波 (CEUS) 在评估与IgG4相关的自身免疫胰腺炎 (IgG4-AIP) 的治疗反应方面表现有希望. 治疗后,像峰值强度这样的关键参数发生了显著的变化,有助于评估疾病活性.

科学领域:

医疗成像医学成像
胃肠病学胃肠病学
免疫学免疫学免疫学

背景情况:

免疫球蛋白G4相关的自身免疫胰腺炎 (IgG4-AIP) 是一种复杂的炎症状况.
准确评估治疗反应对于管理IgG4-AIP至关重要.
传统的成像可能无法完全捕捉胰腺病变的动态变化.

研究的目的:

研究IgG4-AIP患者治疗前后对比增强超声波 (CEUS) 参数的变化.
确定用于评估IgG4-AIP中的疾病活性和治疗反应的CEUS指标.
评估时间强度曲线 (TIC) 分析在IgG4-AIP的CEUS中的实用性.

主要方法:

预期招募73名活跃IgG4-AIP患者.
收集人口统计,临床和实验室数据.
传统超声波和CEUS在基线和后续的性能.
从胰腺病变和正常胰腺组织感兴趣的区域分析时间强度曲线 (TIC) 和参数 (例如,峰值强度,曲线下的面积).

主要成果:

治疗后胰腺损伤大小显著减少 (4.3厘米至1.7厘米).
在治疗后,胰腺头部,身体和尾部的峰值强度 (PI) 显著增加 (p<0.001).
在治疗后的胰腺尾部曲线下的面积 (AUC) 显著增加 (p=0.029).
治疗后在扩散性和焦点性病变中观察到PI的增加.

结论:

使用TIC分析的CEUS是评估IgG4-AIP治疗反应的宝贵工具.
PI和AUC参数的变化可以作为治疗疗效的指标.
CEUS提供了一种动态和定量方法来监测IgG4-AIP活动.

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