识别分数用于使用死前和死后头骨CT扫描进行可靠和安全的识别.
Marie-Edith Richard1,2, Corentin Provost1,2, Tania Delabarde3,4,5
1Institute of Psychiatry and Neuroscience of Paris (IPNP), Université Paris Cité, INSERM U1266, 75014, Paris, France.
International journal of legal medicine
|November 3, 2024
概括
一种新的IDScore方法使用计算机断层扫描 (CT) 切片用于对象识别,克服了与前死亡CT (AMCT) 图像的数据安全问题. 这种方法实现了100%的敏感性和特异性来识别个体.
科学领域:
- 法医放射学 法医放射学
- 医学成像分析 医学成像分析
- 人类识别 人类识别
背景情况:
- 副鼻提供独特的解剖特征,用于在死后CT (PMCT) 和死前CT (AMCT) 之间进行比较识别.
- 数据安全问题阻碍了用于身份验证的AMCT原始图像的传输.
研究的目的:
- 开发和验证识别分数 (IDScore),使用CT切片进行对象识别.
- 解决与访问AMCT数据相关的伦理和监管挑战.
主要方法:
- 导出IDScore的结果涉及98名患者,两次AMCT间隔≥1年,放射科医生评估切片相似性 (胸膜,额头鼻,左半圆通道).
- 验证使用了27个PMCT与比较AMCT,每个PMCT包括5个比较程序 (1个一致,4个不一致).
- 两位放射科医生得分为ethmoid和前额CT切片相似性 (-2到+2),IDScore作为平均总和.
主要成果:
- 根据IDScore的研究结果,同样的受试者之间具有100%的敏感性和100%的特异性.
- 预先确定的IDScore值 (> +2为阳性,<-1为负的识别) 是有效的.
- 这项研究总共涉及135个比较程序.
结论:
- IDScore可以实现远程主体识别,而不需要完整的原始AMCT图像.
- 这种方法有效地绕过了在获取AMCT数据以进行识别时存在的伦理和监管障碍.
- IDScore提供了一种安全有效的解决方案,用于使用CT成像进行法医识别.
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