Esophagography
Introduction Anatomy Contrast medium Procedure Case
Introduction
Esophagography(Barium swallow) 定義:針對pharynx and esophagus的常用 放射線攝影檢查 目的:檢查pharynx and esophagus在吞嚥 時的形狀與功能 禁忌症:是否對BaSO4 or water-soluble contrast medium過敏
Indication Anatomical anomaly Impaired swallowing mechanics Foreign body obstruction Esophageal reflux Esophageal varices
Anatomy
Contrast Medium Radiolucent Air、CO2 gas crystal Radiopaque Barium sulfate(Barium)
Barium BaSO4(salt of barium) Thin barium(600g BaSO4+600g water) →Gastrointestinal tract Thick barium(2400g BaSO4+600g water) → Pharynx and esophagus
可疑有先天性食道狹窄、食道穿孔或硫酸鋇混和液有流入腹膜腔內的可能性,就不能使用硫酸鋇,可以使用水溶性含碘造影劑(water-soluble iodinated contrast medium)。
Procedure
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