单选题
DSA造影期间一般进行两次曝光，一次是在对比剂到达感兴趣区之前，一次是在（ ）。
发布日期：2022-07-14
对比剂到达感兴趣区并出现最大浓度前
对比剂到达感兴趣区之后
对比剂到达感兴趣区并出现最大浓度后
对比剂到达感兴趣区并出现最大浓度时
对比剂消退后
试题解析
造影剂
造影剂（又称对比剂，contrast media）是为增强影像观察效果而注入（或服用）到人体组织或器官的化学制品。这些制品的密度高于或低于周围组织，形成的对比用某些器械显示图像。如X线观察常用的碘制剂、硫酸钡等。
- 中文名
- 造影剂
- 别名
- 对比剂
- 外文名
- contrast media
- 性质
- 介入放射学
造影
造影是一个医学术语，拼为zàoyǐng，是在放射诊断学中，通过摄入含原子序数高的元素的物质，然后在预诊断的体内部位摄取放射照片以供医学诊断。
- 中文名
- 造影
- 领域
- 医学
- 拼音
- zàoyǐng
- 常见的造影术
- 上消化道造影
到达
《到达》是南征北战NZBZ演唱的歌曲，发行于2021年9月6日。
- 中文名
- 到达
- 歌曲原唱
- 南征北战NZBZ
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