关键词: 胆囊切除术, 超声, 电子计算机断层扫描, 磁共振胰胆管成像

Abstract:

Rational option and evaluation of imaging assessment methods before cholecystectomy        LIANG Ting-bo，LOU Jian-ying . Department of Hepato-Pancreato-Biliary Surgery，the Second Affiliated Hospital of Zhejiang Uninversity School of Medicine，Hangzhou 310003，China
Corresponding author：LIANG Ting-bo，E-mail：liangtingbo@zju.edu.cn
Abstract    Cholecystectomy is one of the most commonly used abdominal surgical procedures. The difficulty level of cholecystectomy is different for each individual patient because of the high incidence of anatomically aberrant biliary ducts that tends to result in biliary duct injuries. Preoperative imaging assessment of gallbladder functions, anatomically aberrant biliary ducts, characteristics of gallbladder lesions, and its relationship with adjacent organs are critical modalities in order to avoid unnecessary gallbladder removals and disastrous complications. Ultrasonography, computed tomography (CT) and magnetic resonance cholangio pancreatography (MRCP) are most commonly used tools for the preoperative evaluation of gallbladder diseases. Being an accurate, highly sensitive, noninvasive, repeatable and inexpensive modality in detecting gallstones and solid lesions, ultrasonography should be routinely performed before cholecystectomies. MRCP may be useful to evaluate common bile duct (CBD) stones and bile duct variations and reduce the event of biliary duct injuries and residual CBD stones. Contrast enhanced CT is indicated for gallbladder cancer staging and differential diagnosis of solid gallbladder lesions.

Key words: cholecystectomy, ultrasonography, computed tomography, magnetic resonance cholangiopancreatography