Method: A total of 60 senile malignant obstructive jaundice patients were assigned to PTCD under color Doppler flow imaging, followed by routine biliary tract opacification under X-ray.

• 方法:应用彩色超声诊断仪对62例老年恶性梗阻性黄疸行PTCD治疗,术后常规X线下胆道造影;