定量计算机断层扫描用于评估精神分裂症患者的身体组成:一种潜在的胰岛素抵抗性指标
Xinping Kuai1, Fangsong Zhang1, Mengyang Han1
1Department of Radiology, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Frontiers in psychiatry
|December 25, 2025
概括
定量计算机断层扫描 (QCT) 显示内脏脂肪组织和肝脂肪是精神分裂症患者胰岛素抵抗 (IR) 的关键指标. 将QCT与临床数据相结合,可以改善IR预测,突出显示子宫外脂肪.
科学领域:
- 放射学和成像学 放射学和成像学
- 代谢障碍 代谢障碍 代谢障碍
- 精神疾病 精神疾病
背景情况:
- 胰岛素抵抗 (IR) 是精神分裂症中常见的一种代谢并发症.
- 了解身体组成和IR之间的关系对于管理精神分裂症患者至关重要.
- 定量计算断层扫描 (QCT) 提供了对身体组成的详细见解.
研究的目的:
- 为了研究恒温模式评估胰岛素抵抗 (HOMA-IR) 指数和器官身体组成之间的关联.
- 评估QCT参数作为精神分裂症IR的潜在生物标志物.
主要方法:
- 924名精神分裂症患者根据HOMA-IR被分为非IR和IR组.
- QCT测量了骨矿物质密度 (BMD),肝脏脂肪分数,皮下脂肪组织 (SAT) 和内脏脂肪组织 (VAT).
- 后勤回归和ROC曲线分析确定了预测因素并评估了模型性能.
主要成果:
- 与非IR患者相比,IR患者的骨质量,肝脂肪,SAT和VAT显著增加.
- 多变量分析确定增值税和肝脂肪是IR的独立预测因素.
- 综合了QCT参数和临床共变量的组合模型实现了最高的预测性能 (AUC=0.852).
结论:
- 通过QCT评估的内脏脂肪组织和肝脂肪是精神分裂症中IR的重要指标.
- 一个将QCT参数与临床共变量结合在一起的预测模型增强了在这个人群中IR风险的识别.
- 宫外脂肪沉积在与精神分裂症相关的代谢失调中起着至关重要的作用.
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