在儿科腹部CT中,双低协议用于评估右下象限疼痛
Hyun Jeong Park1, Hyewon Choi2, Rae Rim Ryu2
1Department of Radiology, Chung-Ang University Hospitall, Chung-Ang University College of Medicine, Seoul, Republic of Korea. seolly1024@gmail.com.
Japanese journal of radiology
|March 29, 2025
概括
儿童增强腹部CT的双低协议显著降低了辐射剂量和负荷. 这种更安全的CT成像方法保持了急性尾炎的可比诊断准确性.
科学领域:
- 放射学 放射学是一门学科.
- 儿科成像学 儿科成像学
- 医学物理 医学物理
背景情况:
- 在儿科CT中,尽量减少辐射和对比介质的暴露至关重要.
- 双低协议 (低对比度和低管电压) 是传统协议的潜在替代方案.
研究的目的:
- 为了比较双低协议 (240 mgI / ml + 80 kVp) 与常规协议 (350 mgI / ml + 120 kVp) 的诊断疗效,在疑似急性尾炎的儿科患者 (10岁以下) 中.
主要方法:
- 对121名接受增强腹部CT的儿科患者的回顾性分析.
- 双低 (A组) 和传统 (B组) 协议之间的辐射剂量,负荷和图像质量参数的比较.
- 由两名放射科医生对诊断图像质量,尾视觉化和尾炎诊断性能进行独立评估.
主要成果:
- 双低协议组 (A组) 与传统协议组 (B组) 相比,有效剂量和负载显著较低.
- 尽管A组的图像质量和信号噪声比较低,但尾炎的尾视觉化和诊断准确性在两组之间是可比的 (98.4%和94.9%).
- 没有观察到患者年龄,体重或使用的对比介质体积的显著差异.
结论:
- 双低协议是儿童患者增强腹部CT的有效替代方案.
- 该协议实现了与传统方法相比的诊断性能,同时显著减少了辐射暴露.
- 这些发现支持在儿科成像中采用更安全的CT采集实践.
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