超声诊断由于其成像快、诊断及时、设备没有CT或MRI设备那样昂贵、且属于非损伤性诊断方法,深受患者欢迎。因患者来院就诊做检查的随机性大,可控性小,加之服务设施是相对固定的,排队现象则不可避免犤1犦。本文运用运筹学中的排队论理论,通过对超声诊断科检查患者排队系统的研究 Ultrasound diagnosis because of its fast imaging, timely diagnosis, equipment, CT or MRI equipment is not as expensive, and are non-invasive diagnostic methods, welcomed by patients. Because patients come to the hospital to check the randomness, controllability is small, combined with service facilities are relatively fixed, queuing phenomenon is inevitable 犤 1 犦. In this paper, we use the theory of queuing theory in operations research to study the queuing system of patients by ultrasound diagnosis