造影劑也稱為對比劑、顯影劑,是一種X光無法穿透的藥劑,用於讓體內器官在X光檢查時能看得更清楚。例如消化道攝影時,醫生會讓患者喝下一杯造影劑溶液(大多含硫酸鋇),然後用各種角度照相,就能讓胃腸道看得很清楚。除了用喝的方式以外,造影劑也可以做成灌腸、注射等劑型,用來突顯不同的器官或部位。
參見
參考書目
- Dorland's Illustrated Medical Dictionary (Twenty-sixth Edition) (ISBN 0-7216-1645-3)
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