在精神病中复制神经成像生物标志物以检测条纹功能障碍
Jose Rubio1, Todd Lencz2, Hengyi Cao3
1Institute of Behavioral Science, Feinstein Institutes of Medical Research, Northwell Health.
Research square
|August 23, 2023
概括
功能性条纹性异常 (FSA) 对精神病的诊断准确性很好,但缺乏预后价值. 增加扫描长度可以提高FSA诊断性能和可靠性,这表明它有可能作为诊断工具在临床上使用.
科学领域:
- 神经成像是一种神经成像.
- 精神病学是一个精神病学.
- 生物标志物开发 生物标志物开发
背景情况:
- 功能性条纹性异常 (FSA) 是精神分裂症的高级神经成像生物标志物,具有诊断性和潜在的预后性质.
- 临床应用要求生物标志物具有可概括性,可靠性,并在常规条件下发挥作用.
研究的目的:
- 复制FSA的诊断能力,以区分精神病与健康对照.
- 评估FSA的测试-重试和相位编码方向可靠性.
- 评估扫描长度对FSA诊断准确性和可靠性的影响.
- 测试FSA在预测症状改善方面的预后能力.
主要方法:
- 接收器运营商特征 (ROC) 曲线分析与曲线下的面积 (AUC) 用于诊断歧视.
- 测试-重新测试和相位编码方向可靠性的类内相关系数 (ICC).
- 对AUC和ICC的不同扫描长度 (2到10分钟) 的分析.
- 基线FSA得分与12周症状改善之间的相关性分析.
主要成果:
- FSA表现出良好的/优秀的诊断歧视 (AUC=75.4%),特别是在非情感性精神病 (AUC=80.5%).
- 测试-重新测试可靠性 (ICC=0.48-0.22) 和相位编码方向可靠性 (ICC=0.51) 与Yeo网络相似.
- 增加扫描长度提高了诊断分类和相位编码可靠性.
- FSA得分与症状改善无关,表明没有预后能力.
结论:
- FSA是一种可通用的精神病诊断生物标志物,通过更长的扫描持续时间提高了性能.
- 目前,FSA缺乏预测精神病治疗反应的预后价值.
- 预后生物标志物的未来开发应该专注于治疗反应数据,而不是病例控制数据集.
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