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장강석(Kang-Seok Jang),권형오(kwon-hyung Oh),김두훈(Doo-Hoon Kim),이일화(Il-Wha Lee),황선근(Seon-Keun Hwang) 한국철도학회 1998 한국철도학회 학술발표대회논문집 Vol.- No.-
Nowadays, the environmental vibration criteria has been severely restricted from the viewpoint of recipient. The vibration created by urban transit systems can be an important source of community discontent, and can have influence on high technology equipments. This has led to a desire of transit system operators to reduce vibration and to minimize community exposure to vibration. Recent research in this area has significantly increased for transit system engineers to reduce vibration. Unlike other material, soil has a complicated characteristic and it is very difficult to prevent vibration from transmitting. Generally, the trench can use to breaking propagation of vibration on passing way but needs much too maintenance. Therefore, the filled materials for trench had successfully developed and the characteristic test for the filled material had conducted during this term. Finally, we had executed analyses of real characteristic through the propagation test of ground vibration.
외상성 췌관 손상에서 내시경적 역행성 췌관조영술의 역할
김현수,노병선,조남천,백순구,권상옥,이동기,김일의,박중화 대한소화기내시경학회 2001 Clinical Endoscopy Vol.22 No.2
Background/Aims: Because the status of the main pancreatic duct (MPD) is the most important determinant for pancreatic trauma associated morbidity and mortality, early diagnosis and optimal treatment are critical, especially in MPD injury. Methods: Twenty-three pancreatic trauma patients were divided into two groups according to the interval between trauma and endoscopic retrograde pancreatography (ERP). The clinical and laboratory findings, CT and ERP results were described. The treatment modality and its clinical outcome were assessed according to ERP findings. Results: The pancreatic duct was injured in 14 of the 23 trauma patients: 11 MPD injuries and 3 branching duct injuries. CT scan correctly predicted the MPD injury in only 6 (54.5%) of the 11 patients, whereas ERP correctly demonstrated the origin and the degree of pancreatic duct injury in all patients. Through contrast leakage from the MPD into peritoneal cavity, ERP confirmed an MPD injury in 8 patients and they underwent surgical exploration, Three patients who showed parenchymal leakage from branching duct recovered with conservative treatment. Transpapillary pancreatic stents were successfully inserted into the distrupted MPD in 3 patients who showed that the contrast leakage was confined to the pancreatic parenchyme and they achieved complete resolution of the pancreatic leaks after a 3-month follow-up period. The late ERP group () 72 hours after trauma) had a significantly higher pancreas associated complication rate and a tendency to a longer hospital stay than the early ERP group. Conclusions: Early ERP is the most useful tool for demonstrating the presence of MPD injury as well as planning the optimal treatment modality according to the degree of pancreatic duct injury.