Most modern injected radiographic positive contrast media are iodine-based.
大多数现代注射放射学阳性造影剂碘。
Both water and positive contrast media can be full of stomach(26/26). The showing of stomach wall is good in axial image(25/26), and no forgery to surrounding organs(0/26).
口服水对比剂及阳性对比剂均能满意地充盈胃腔（26/26），在轴位图像胃壁结构显示上单纯口服水对比剂效果好（25/26），且对周围图像无影响（伪影0/26）。
Positive and negative contrast media for enhanced MR imaging of the liver were studied.
本文复习了肝脏磁共振增强扫描中所应用的阳性及阴性造影剂。
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