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Single-incision laparoscopic surgery for biliary tract disease

World Journal of Gastroenterology 2016年第2期22卷 736-747页

作者： Shu-Hung Chuang chih-sheng lin Department of Surgery MacKay Memorial HospitalHsin-Chu BranchHsin-Chu 30071Taiwan Department of Healthcare Management Yuanpei University of Medical TechnologyHsin-Chu 30015Taiwan Department of Biological Science and Technology National Chiao Tung UniversityHsin-Chu 30068Taiwan

Single-incision laparoscopic surgery(SILS), or laparoendoscopic single-site surgery, has been employed in various fields to minimize traumatic effects over the last two decades. Single-incision laparoscopic cholecystectomy(SILC) has been the most frequently studied SILS to date. Hundreds of studies on SILC have failed to present conclusive results. Most randomized controlled trials(RCTs) have been small in scale and have been conducted under ideal operative conditions. The role of SILC in complicated scenarios remains uncertain. As common bile duct exploration(CBDE) methods have been used for more than one hundred years, laparoscopic CBDE(LCBDE) has emerged as an effective, demanding, and infrequent technique employed during the laparoscopic era. Likewise, laparoscopic biliary-enteric anastomosis is difficult to carry out, with only a few studies have been published on the approach. The application of SILS to CBDE and biliary-enteric anastomosis is extremely rare, and such innovative procedures are only carried out by a number of specialized groups across the globe. Herein we present a thorough and detailed analysis of SILC in terms of operative techniques, training and learning curves, safety and efficacy levels, recovery trends, and costs by reviewing RCTs conducted over the past three years and two recently updated meta-analyses. All existing literature on single-incision LCBDE and singleincision laparoscopic hepaticojejunostomy has been reviewed to describe these two demanding techniques.

关键词： Laparoendoscopic single-site surgery Laparoscopic cholecystectomy Laparoscopic commonbile duct exploration Laparoscopic hepaticojejunostomy Single-incision laparoscopic surgery

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Single-incision vs three-incision laparoscopic cholecystectomy for complicated and uncomplicated acute cholecystitis

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World Journal of Gastroenterology 2013年第43期19卷 7743-7750页

作者： Shu-Hung Chuang Pai-Hsi Chen chih-Ming Chang chih-sheng lin Department of Biological Science and Technology National Chiao Tung University Department of Surgery Mackay Memorial HospitalHsin-Chu Branch College of Management Fu Jen Catholic University Department of Nursing Mackay Memorial HospitalHsin-Chu Branch

AIM:To compare the clinical outcome of single-incision laparoscopic cholecystectomy(SILC)and three-incision laparoscopic cholecystectomy(3ILC)for acute ***:From July 2009 to September 2012,136patients underwent SILC or 3ILC for acute cholecystitis at a tertiary referral *** experienced surgeon performed every procedure using 5 or 10 mm 30-degree laparoscopes,straight instruments,and conventional *** patients with perforated gallbladder and diffuse peritonitis and 23 patients with mild acute cholecystitis were *** remaining 108 patients were divided into complicated and uncomplicated groups according to pathologic *** demography,clinical data,operative results and complications were recorded and ***:Fifty patients with gangrenous cholecystitis,gallbladder empyema,or hydrops were classified as the complicated group,and 58 patients with acute cholecystitis were classified as the uncomplicated ***-three(46.0%)of the patients in the complicated group(n=50)and 39(67.2%)of the patients in the uncomplicated group(n=58)underwent SILC;all others underwent *** postoperative length of hospital stay(PLOS)was significantly shorter in the SILC subgroups than the 3ILC subgroups(3.5±1.1 d vs 4.6±1.3 d,P<0.01 in the complicated group;2.9±1.1 d vs 3.7±1.4 d,P<0.05 in the uncomplicated group).The maximum body temperature recorded at day 1 and at day 2 following the procedure was lower in the SILC subgroups,but the difference reached statistical significance only in the uncomplicated group(37.41±0.56℃vs 37.80±0.72℃,P<0.05 on postoperative day 1;37.10±0.43℃vs 37.57±0.54℃,P<0.01 on postoperative day 2).The operative time,estimated blood loss,postoperative narcotic use,total length of hospital stay,conversion rates,and complication rates were similar in both SILC and 3ILC *** complicated group had longer operative time(122.2±35.0 min vs 106.6±43.6 min,P<0.05),longer PLOS(4.1±1.3 d vs 3.2±1.2 d,P<0.

关键词： Single-incision laparoscopic cholecystectomy Single-incision laparoscopic surgery Laparoen doscopic single site surgery Cholecystectomy Acute cholecystitis Complicated cholecystitis Gangrenous cholecystitis

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Pancreatic stent improves the success rate of needle-knife papillotomy in patients with difficult biliary cannulation

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World Journal of Gastroenterology 2025年第1期31卷 58-67页

作者： Mu-Hsien Lee Cheng-Hui lin Chi-Huan Wu Yung-Kuan Tsou Kai-Feng Sung sheng-Fu Wang Nai-Jen Liu Department of Gastroenterology and Hepatology Chang Gung Memorial Hospital and Chang Gung University College of MedicineTaoyuan 33305Taiwan School of Medicine Chang Gung UniversityTaoyuan 33305Taiwan

BACKGROUND Needle-knife precut papillotomy(NKP)is typically performed ***,it remains unclear whether pancreatic stent(PS)placement can improve the outcomes of *** To explore whether PS placement improves the success rate of NKP in patients with difficult biliary *** This single-center retrospective study included 190 patients who underwent NKP between January 2017 and December 2021 after failed conventional biliary *** cases with incidental pancreatic duct cannulation during conventional biliary cannulation,the decision for pre-NKP PS placement was made at the endoscopist's *** primary outcome was the difference in the NKP success rate between patients with and without PS placement;the secondary outcome was the adverse event *** Among the 190 participants,82 received pre-NKP PS(PS-NKP group)whereas 108 did not[freehand or freehand NKP(FH-NKP)group].Post-NKP selective biliary cannulation was successful in 167(87.9%)patients,and the PS-NKP had a significantly higher success rate than the FH-NKP group(93.9%vs 83.3%,P=0.027).The overall adverse event rates were 7.3%and 11.1%in the PS-NKP and FH-NKP groups,respectively(P=0.493).A periampullary diverticulum(PAD)and significant intraoperative bleeding during NKP were independently associated with NKP failure;however,a pre-NKP PS was the only predictor of NKP *** the 44 participants with PADs,the PS-NKP group had a non-significantly higher NKP success rate than the FH-NKP group(87.5%and 65%,respectively;P=0.076).CONCLUSION PS significantly improved the success rate of NKP in patients with difficult biliary cannulation.

关键词： Difficult biliary cannulation Endoscopic retrograde cholangiopancreatography Needle-knife papillotomy Pancreatic stent Selective biliary cannulation

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Gender Classification Based on Multi-Scale and Run-Length Features

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Journal of Electronic Science and Technology 2017年第3期15卷 251-257页

作者： sheng-Hung Wang chih-Yang lin Jing-Tong Fu Department of Computer Science and Information Engineering Asia University Taichung 41354 Department of Bioinformatics and Medical Engineering Asia University Taichung 41354

Human faces can convey substantial information about a person,such as his or her age,race,identity,gender,and *** facial information can be obtained through techniques like human facial tracking and detection,facial recognition,gender classification,emotion recognition,as well as age *** these,gender classification is particularly important due to its diverse applications in the fields such as video surveillance and commercial *** this thesis,we propose a method of gender classification based on run-length *** proposed method uses a run-length histogram to record the position information of pixels,thereby efficiently improves the recognition rate and makes the technique suitable for a big-data multimedia *** experimental results show that the proposed method can achieve better accuracy than a multi-scale based method can.

关键词： Index Terms--Gender classification run-length,texture feature.

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Synchronous adenocarcinoma and extranodal natural killer/T-cell lymphoma of the colon:A case report and literature review

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World Journal of Gastroenterology 2013年第11期19卷 1850-1854页

作者： chih-En Tseng Ta-Wen Shu chih-Wen lin Kai-sheng Liao Department of Anatomic Pathology Buddhist Dalin Tzu Chi General HospitalChiayi 62247Taiwan School of Medicine Buddhist Tzu Chi UniversityHualien 97004Taiwan Department of General Surgery Buddhist Dalin Tzu Chi General HospitalChiayi 62247Taiwan Department of Medical Imaging Buddhist Dalin Tzu Chi General HospitalChiayi 62247Taiwan

Extranodal natural killer/T-cell lymphoma(ENKTL) is a distinct subtype of non-Hodgkin's lymphoma and is rare in the *** adenocarcinoma and ENKTL of the colon has not been reported in the *** the present study,we report a 63-year-old male who suffered from intermittent bloody stools for 2 *** did not have fever,body weight loss or night *** and imaging studies revealed a 4.5-cm ulcerative mass in the ascending colon and a 3.0-cm polypoid,easy bleeding mass in the sigmoid colon,*** to have double carcinoma of the colon,he received simultaneous right hemicolectomy and *** pathological diagnosis was a synchronous ENKTL(ascending colon) and adenocarcinoma(sigmoid colon).The literature on synchronous adenocarcinoma and malignant lymphoma of the colon was also reviewed.

关键词： Synchronous cancers of the colon Colonic adenocarcinoma Colonic lymphoma Extranodal natural killer/T-cell lymphoma Epstein-Barr virus

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Experimental and numerical investigations of the mechanical behavior of half sandwich laminate in the context of blanking

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Advances in Manufacturing 2020年第2期8卷 177-188页

作者： sheng Cai lin Chen Department of V ehicle Engineering College of EngineeringChina Agricultural UniversityBeijing 100083People's Republic of China CW Bearing GmbH Hamburg 22113Germany

In this study,the complex mechanical behavior of an aluminum/low-density polyethylene(LDPE)half sandwich structure was investigated during the blanking *** tests were conducted for the polymer and metal layer and the delamination behavior of the adhesive between the two layers.A new testing device was designed for detecting the delamination under tensile *** finite element models were established for the mechanical tests of the metal layer and the delamination of both layers for inverse parameter *** parameters for Lemaitre-type damage,Drucker-Prager,and cohesive zone modeIs were identified for the metal,polymer,and adhesive,respectively.A finiteelement(FE)model was established for the blanking process of the sandwich *** experimental forcedisplacement curves,obtained in the blanking process of the half sandwich sheet,were compared with the predicted results of the FE *** results showed that the predicted force-displacement curves and the experimental results were in good ***,the correlation between cutting clearance and changes in the forcedisplacement curves was *** feature values quantitatively described the imperfection of the experimental cutting *** effect of punch clearance on these values was studied numerically and *** results indicated that a smaller clearance generated a better cutting-edge *** stress state of the half sandwich structure during blanking was analyzed using the established FE model.

关键词： Sandwich plates Blanking Continuum damage mechanics(CDM) Drucker-Prager model Cohesive zone model

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An Efficient Neural-Network and Finite-Difference Hybrid Method for Elliptic Interface Problems with Applications

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Communications in Computational Physics 2023年第4期33卷 1090-1105页

作者： Wei-Fan Hu Te-sheng lin Yu-Hau Tseng Ming-chih Lai Department of Mathematics National Central UniversityTaoyuan 32001Taiwan Department of Applied Mathematics National Yang Ming Chiao Tung UniversityHsinchu 30010Taiwan Department of Applied Mathematics National University of KaohsiungKaohsiung 81148Taiwan National Center for Theoretical Sciences National Taiwan UniversityTaipei 10617Taiwan

A new and efficient neural-network and finite-difference hybrid method is developed for solving Poisson equation in a regular domain with jump discontinuities on embedded irregular *** the solution has low regularity across the interface,when applying finite difference discretization to this problem,an additional treatment accounting for the jump discontinuities must be ***,we aim to elevate such an extra effort to ease our implementation by machine learning *** key idea is to decompose the solution into singular and regular *** neural network learning machinery incorporating the given jump conditions finds the singular solution,while the standard five-point Laplacian discretization is used to obtain the regular solution with associated boundary *** of the interface geometry,these two tasks only require supervised learning for function approximation and a fast direct solver for Poisson equation,making the hybrid method easy to implement and *** two-and three-dimensional numerical results show that the present hybrid method preserves second-order accuracy for the solution and its derivatives,and it is comparable with the traditional immersed interface method in the *** an application,we solve the Stokes equations with singular forces to demonstrate the robustness of the present method.

关键词： Neural networks sharp interface method fast direct solver elliptic interface problem Stokes equations

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Parameter identification and blanking simulations of DP1000 and Al6082-T6 using Lemaitre damage model

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Advances in Manufacturing 2021年第3期9卷 457-472页

作者： sheng Cai lin Chen Department of Vehicle Engineering College of EngineeringChina Agricultural UniversityBeijing100083People’s Republic of China CW Bearing GmbH 22113HamburgGermany

This work provides numerical and experimental investigations of blanking process,where the shear-enhanced Lemaitre’s damage model is fully characterized and successfully applied in blanking process to predict the cutting force and cutting edge geometry under different blanking process *** high strength steel DP1000 and an aluminum alloy Al6082-T6 are selected for series of *** obtain the damage parameters in Lemaitre’s damage model the flat rectangular notched specimens tensile test was conducted and the inverse parameter identification procedure was *** characterizing the crack closure parameter h in the shear enhanced Lemaitre’s damage model,an in-plane torsion test with novel specimen design was *** finite element model(FEM)of this test was established with the minimum mesh size of 0.01 mm which was consistent with the minimum mesh size in the shear zone of the FEM for blanking process *** longitudinal strain distributions of four kinds of initial notch radius or central-hole specimen were measured and compared with simulation results to validate the FEMs for these four *** analysis of blanking of a circular work piece also was performed under three *** effects of blanking conditions on sheared part morphology were *** triaxiality distribution of the blank sheet was revealed taking advantage of the successfully established *** availability of the testing method and the determination method of the parameters was investigated.

关键词： Blanking Lemaitre damage model Stress triaxiality Finite element model(FEM)

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Blood micronutrient, oxidative stress, and viral load in patients with chronic hepatitis C

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World Journal of Gastroenterology 2005年第30期11卷 4697-4702页

作者： Wang-sheng Ko chih-Hung Guo Maw-sheng Yeh Li-Yun lin Guoo-Shyng W. Hsu Pei-Chung Chen Mei-Ching Luo Chia-Yeh lin Department of Food and Nutrition Hung Kuang University Department of Internal Medicine Kuang-Tien General Hospital Taichung 433 Taiwan China Department of Food and Nutrition Hung Kuang University Taichung 433 Taiwan China Department of Nutrition and Food Sciences Fu Jen University Taipei 242 Taiwan China Department of Biotechnology Hung Kuang University Taichung 433 Taiwan China

AIM: To assess the extent of micronutrient and oxidative stress in blood and to examine their linkages with viral loads in chronic hepatitis C ***: Hepatitis C virus (HCV)-RNA levels were quantified in the serum from 37 previously untreated patients with chronic hepatitis C. The plasma and erythrocyte micronutrients (zinc, selenium, copper, and iron) were estimated, and malondialdehyde (MDA)contents were determined as a marker to detect oxidative stress. Antioxidant enzymes, superoxide dismutase (SOD),glutathione peroxidase (GPX) and glutathione reductase (GR) activities in blood were also measured. The control group contained 31 healthy ***: The contents of zinc (Zn), and selenium (Se)in plasma and erythrocytes were significantly lower in hepatitis C patients than in the controls. On the contrary,copper (Cu) levels were significantly higher. Furthermore,plasma and erythrocyte MDA levels, and the SOD and GR activities in erythrocytes significantly increased in hepatitis C patients compared to the controls. However, the plasma GPX activity in patients was markedly lower. Plasma Se (r= -0.730, P<0.05), Cu (r = 0.635), and GPX (r = -0.675)demonstrated correlations with HCV-RNA loads. Significant correlation coefficients were also observed between HCV-RNA levels and erythrocyte Zn (r = -0.403), Se (r = -0.544), Cu (r = 0.701) and MDA (r = 0.629) and GR (r = 0.441).CONCLUSION: The levels of Zn, Se, Cu, and oxidative stress (MDA), as well as related anti-oxidative enzymes (GR and GPX) in blood have important impact on the viral factors in chronic hepatitis C. The distribution of these parameters might be significant biomarkers for HCV.

关键词： Micronutrient Oxidative stress Viral load Plasma and erythrocytes Hepatitis C

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Monitoring of PON System Using Compound Surveillance Technique

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Journal of Electronic Science and Technology 2015年第2期13卷 169-173页

作者： Sun-Chien Ko Hsiu-Jung Chuang Si-Chong Chen chih-Yih Wang sheng-Fwu lin Telecommunication Laboratories Chunghwa Telecom Co.Ltd.

A passive optical network（PON） monitoring system combined light pulse and frequency sweep techniques is proposed and verified in a field test. The light pulse surveys over the all whole network and the frequency sweep are used to investigate any fault in the link. The field test is performed with 4 PONs. Each PON is monitored at 4 ports, one is the splitter port and the other three are arbitrary chosen multiple optical units（ONUs）. All the tested PONs are monitored in turns once per hour. Faults at the feeder and branch fiber have been observed in this field test and have been analyzed with the monitoring system.

关键词： verified arbitrary monitored splitter branch chosen reflective turns restoration realistic

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