- 期刊
胆道氣腫（Pneumobilia）之超音波學診斷－臨床與實驗之研究－
Experimental and Clinical Study of ultrasonic Diagnosis of Pneumobilia
摘要
膽道氣腫（Pneumobilia）除了起因於膽道腸道之外科吻合術外，常常隱喻肝膽系統疾病的存在；因此膽道氣腫成了一重要的診斷線索。藉著實驗與臨床四病例，我們發現膽道氣腫的超音波像有下列特徵：（1）膽道氣腫之超音波像可以呈現樹枝狀，也可以呈現扁平雲片狀而且呈階梯狀排列並帶有音響陰影。（2）藉著體位的改變可使膽道氣腫的形狀改變，可由樹枝狀改變成扁平雲片狀之梯階排列。（3）膽道氣腫會遮蓋其後面之肝組織超音波。（4）塊狀之肝內結石極易與扁平雲片的膽道氣腫分辨；而細小成簇的肝內結石則較難分辨，但可藉著體位改變及膽道氣腫有較強的超音波反射來分別。
關鍵字
無資料並列摘要
Pneumobilia is usually a symptom of disease of the hepatobiliary tract, except when it is caused by a surgical enterobiliary by-pass. It will be more convenient if it is diagnosed by ultrasonography, although the configuration of pneumobilia may mimic metastases or calcification throughout the liver. Experimental results and clinical findings reveal the characteristics of pneumobilia as seen through ultrasonography as followings: (1) There is a strong echogenic linear reflection with a trailing acoustic shadow. It may array itself in stair or branching patterns and the configuration may change to each other while changed body position. (2) The linear reflection may hinder the detection of hepatic structures or lesions. (3) The pneumobilia can be differentiated from calcification by its linear configuration and demarcated shape of stone or by changing body position.