动脉瘤下关节出血的影响 严重程度对对比介质的影响 到达时间 脑部计算机断层扫描 血管扫描
1Department of Central Radiology, Japanese Red Cross Okayama Hospital, Okayama, JPN.
Cureus
|April 9, 2025
概括
在头部CT血管造影中,对比介质的到达时间随着脑下大脑底下出血的严重程度而增加. 严重的下关节出血病例可能需要调整时间以获得最佳的成像.
科学领域:
- 神经学 神经学
- 放射学 放射学是一门学科.
- 医疗成像医学成像
背景情况:
- 脑下关节下出血 (SAH) 是一种关键的神经疾病.
- 脑部计算机断层扫描血管造影 (CTA) 对于诊断SAH至关重要.
- 了解SAH中的对比介质 (CM) 动态对于有效的成像至关重要.
研究的目的:
- 评估下大脑下出血严重程度对对比介质到达时间的影响.
- 为了将对比介质到达时间与不同级别的SAH相关联.
- 根据SAH严重程度,为成像协议提供信息.
主要方法:
- 对67名接受头部CTA的患者进行了回顾性分析.
- 将SAH患者分为轻度 (I-III),半重度 (IV) 和重度 (V) 的类别.
- 在所有被评估的患者中测量对比介质到达时间.
主要成果:
- 与非SAH对照组相比,半严重和严重SAH患者的对比介质到达时间明显延长.
- 在SAH严重程度和对比介质到达时间之间观察到正相关性.
- 平均到达时间:非SAH (11.1 ± 2.03秒),轻度SAH (13.2 ± 2.97秒),半严重SAH (15.8 ± 3.45秒),严重SAH (16.6 ± 3.40秒).
结论:
- 对比介质的到达时间随着下大脑底下出血的严重程度逐渐增加.
- 放射学操作人员必须考虑在严重的SAH病例中,在头部CTA期间CM到达的潜在延迟.
- 调整成像时间可能是必要的,以准确诊断严重的SAH.
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