Advances of IDUS in Diagnosis for Billiary DiseasesXiaoping ZouDepartment of GastroenterologyNanjing Drum Tower HospitalNanjing University School of MedicineNanjing,ChinaIntra-ductal Ultrasonography,IDUSAdvantages of IDUS With a finer probe,can get approach to the With a finer probe,can get approach to the target site through working channel of the target site through working channel of the endoscopyendoscopy Get clearer images without the interference of Get clearer images without the interfer
