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김억곤(Eok-Gon Kim),박인만(In-Man Park) 한국산업융합학회 2014 한국산업융합학회 논문집 Vol.17 No.4
In this paper proposes a non-contact inspective technology based vision technology for faulty inspection of welding States and Parts Shape. The maine focus is real time implementation of the machining parts' automatic inspection by the robotic moving. For this purpose, the automatic test instrument inspects the precision components designator the vision system. pattern Recognition Technologies and Precision Components for vision inspection technology and precision machining of precision parts including the status and appearance distinguish between good and bad. To perform a realization of a real-time automation integration system for the precision parts of manufacturing process, it is designed a robot vision system for the integrated system controller and verified the reliability through experiments. The main contents of this dissertation, the robot vision technology for noncontact inspection of precision components and welding states is to utilize this technology in the production process for FA.
Sung Gon Kim,Ju Ik Moon,In Seok Choi,Sang Eok Lee,Nak Song Sung,Ki Won Chun,Hye Yoon Lee,Dae Sung Yoon,Won Jun Choi 대한외과학회 2016 Annals of Surgical Treatment and Research(ASRT) Vol.90 No.6
Purpose: The aim of this study was to investigate the risk factors for conversion to conventional laparoscopic cholecystectomy (CLC) in single incision laparoscopic cholecystectomy (SILC) along with the proposal for procedure selection guidelines in treating patients with benign gallbladder (GB) diseases. Methods: SILC was performed in 697 cases between April 2010 and July 2014. Seventeen cases (2.4%) underwent conversion to conventional LC. We compared these 2 groups and analyzed the risk factors for conversion to CLC. Results: In univariate analysis, American Society of Anesthesiologist score > 3, preoperative percutaneous transhepatic GB drainage status and pathology (acute cholecystitis or GB empyema) were significant risk factors for conversion (P = 0.010, P = 0.019 and P < 0.001). In multivariate analysis, pathology (acute cholecystitis or GB empyema) was significant risk factors for conversion to CLC in SILC (P < 0.001). Conclusion: Although SILC is a feasible method for most patients with benign GB disease, CLC has to be considered in patients with acute cholecystitis or GB empyema because it is likely to result in inadequate visualization of the Calot’s triangle and greater bleeding risk.
췌장 Simple Mucinous Cyst 내 Hemosuccus Pancreaticus 1예
조일억 ( IL Eok Jo ),강대환 ( Dae Hwan Kang ),최철웅 ( Cheol Woong Choi ),김형욱 ( Hyung Wook Kim ),김수진 ( Su Jin Kim ),남형석 ( Hyeong Seok Nam ),유대곤 ( Dae Gon Ryu ) 대한소화기학회 2017 대한소화기학회지 Vol.70 No.6
Hemosuccus pancreaticus is an unusual gastrointestinal hemorrhage through the main pancreatic duct. We report a rare case of hemosuccus pancreaticus due to a simple mucinous cyst of the pancreas. A 52-year-old man who had been followed-up for a sus-pected branch duct intraductal papillary mucinous neoplasm (IPMN) visited the emergency room due to hematochezia. Endoscopy showed active bleeding from the ampulla. Computed tomography revealed hemorrhage in a 2.0-cm cystic mass in the pancreatic body. The patient was diagnosed with hemosuccus pancreaticus caused by bleeding into the main pancreatic duct from suspected IPMN. Elective laparoscopic distal pancreatectomy was performed. The histopathological diagnosis was a simple mucinous cyst with squamous metaplasia based upon the pathological finding involving the absence of ovarian-type stroma. In conclusion, it should be recognized that a pancreatic cyst including simple mucinous cyst may cause hemosuccus pancreaticus, and these cysts should be viewed as neoplastic and approached similarly as other mucinous pancreatic neoplasms. (Korean J Gastroenterol 2017;70:301-303)
Jae Seung Kwak,Sung Gon Kim,Sang Eok Lee,Won Jun Choi,Dae Sung Yoon,In Seok Choi,Ju Ik Moon,Nak Song Sung,Seong Uk Kwon,In Eui Bae,Seung Jae Lee,Seung Jae Roh 대한외과학회 2022 Annals of Surgical Treatment and Research(ASRT) Vol.103 No.3
Purpose: This study was performed to investigate the role of the perioperative neutrophil-to-lymphocyte ratio (NLR) as an early predictor of major postoperative complications after total gastrectomy for gastric cancer. Methods: This single-center, retrospective study reviewed consecutive patients with gastric cancer who underwent total gastrectomy at a single institution from March 2009 to March 2021. The postoperative complications were graded according to the Clavien-Dindo classification. We analyzed the patient demographics and surgical outcomes according to the grade of postoperative complications in the major complications group (≥grade III) and the no major complications group (<grade III and no complication). Laboratory tests were performed preoperatively and on postoperative days (POD) 2 and 5 to determine the NLR. Results: Out of 212 patients (mean age, 64.1 years; 152 male [71.7%]), 63 (29.7%) underwent minimally invasive surgery. Twenty-five (11.8%) were in the major complications group and 187 (88.2%) were in the no major complications group. There was a significant difference in the NLR on POD 2 (16.54 . 8.83, P = 0.033) between the 2 groups. According to the receiver operating characteristic curve for the NLR on POD 2, the cutoff was calculated to be 9.6. In multivariate analysis, an NLR on POD 2 of ≥9.6 and an American Society of Anesthesiologists physical status classification of ≥III were statistically significant predictors of major postoperative complications. Conclusion: Determination of the NLR on POD 2 is a simple and useful method for the early prediction of major complications after total gastrectomy for gastric cancer.