脑部计算机断层扫描与无对比成像焦点和未知 - - 一项前性观察性研究
Jasmine Parihar1, Mamta Bhushan Singh1, Ajay Garg2
1Department of Neurology, All India Institute of Medical Sciences, New Delhi, India.
Seizure
|November 15, 2024
概括
无对比CT (NCCT) 脑部扫描与对比增强CT (CECT) 在诊断方面同样有效,特别是在高病变率的区域. 对于患有控制良好的的患者来说,NCCT是一种具有成本效益的替代方案.
科学领域:
- 神经辐射学神经辐射学
- 神经学 神经学
- 医疗成像医学成像
背景情况:
- 的诊断通常需要脑部成像.
- CT扫描,包括非对比 (NCCT) 和对比增强 (CECT) 是常见的成像方式.
- 选择合适的成像取决于临床背景和社会经济因素.
研究的目的:
- 评估对比度增强CT (CECT) 是否对于患有控制良好的焦点或未知的患者至关重要,而这些患者不太可能接受手术.
- 要确定在这种情况下,非对比CT (NCCT) 是否是一个可接受的替代方案.
主要方法:
- 在印度进行了一项前性观察性研究.
- 219名患有焦点性或未知的患者接受了NCCT和CECT脑部扫描.
- 三位神经放射学家的图像解释评估了NCCT错过的异常的比例,以及由于CECT发现的管理变化.
主要成果:
- 与CECT相比,NCCT表现出高灵敏度 (97%) 和特异性 (99%).
- 在NCCT和CECT之间的异常扫描比例中没有发现显著差异 (50.22%和51.14%).
- 在任何情况下,CECT的新发现都没有改变患者的治疗;化颗粒瘤是最常见的异常.
结论:
- 在成像焦点或未知时,NCCT的性能与CECT相似,特别是在化病变普遍存在的地方.
- 在所有患者中,对MRI或CECT进行普遍推并非具有成本效益或基于证据.
- 对于对药物反应的长期,CT扫描通常是正常的或显示NCCT可以检测到的化病变.
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