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CT扫描中手臂抬高体位对锁骨内侧骨骺法医年龄评估的辐射剂量优化研究
为解决法医年龄评估 (FAE)中CT扫描辐射剂量过高的问题,瑞士伯尔尼大学医院团队比较了手臂抬高 (arms-up)与下垂 (arms-down)体位对锁骨内侧骨骺 (MCE)扫描的影响。研究发现手臂抬高体位可降低33%有效剂量 (0.6 vs 0.9 mSv),且不影响扫描长度或图像噪声,为未成年人非医学检查的辐射防护提供了重要依据。
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