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Priya Gupta,Vishakha Kalikar,Roy Patankar,Advait Patankar 소화기인터벤션의학회 2023 International journal of gastrointestinal interven Vol.12 No.1
Mirizzi syndrome was previously considered an absolute contraindication for laparoscopic cholecystectomy. However, with advances in radiology and increasing familiarity with the pathophysiology, the successful laparoscopic management of Mirizzi syndrome is now increasingly reported. The presence of cirrhosis and periportal collaterals increases the difficulty of performing laparoscopic cholecystectomy. Intraoperative indocyanine green (ICG) imaging is very helpful in these complex situations. We present the first published report of ICG-assisted laparoscopic cholecystectomy in type 1 Mirizzi syndrome with Child-Pugh A cirrhosis.
주조공정의 수치해석을 위한 3차원 전산모델 개발에 관한 연구
목진호,이진호,S.Patankar 대한기계학회 2002 大韓機械學會論文集B Vol.26 No.10
A three dimensional numerical model was developed to analyze the mold filling and solidification processes straightforwardly in a casting processes. On the basis of the SIMPLER algorithm, the VOF method and the Equivalent Specific Heat method were adopted to deal with the free surface behavior and the latent heat evolution. The complete model has been validated using exact solutions and experimental results. The importance of three-dimensional effects has been highlighted by comparing the results from the three-dimensional analysis with those given by a two-dimensional analysis.
Novel Balance Tests for Assessing Functional Ankle Instability: Relationships with BMI and Gender
여의동,김승주,임홍철,황명회,박세현,김학준,Patankar, Harshad P.,Yeo, Eui-Dong,Kim, Seung-Joo,Lim, Hong-Chul,Hwang, Myong-Hoi,Park, Se-Hyun,Kim, Hak-Jun 대한족부족관절학회 2012 대한족부족관절학회지 Vol.16 No.2
Purpose: To design novel balance tests to assess FAI and evaluate whether these tests are affected by BMI or gender, with the goal of developing reliable FAI assessment tests that are not influenced by these factors. Materials and Methods: Participants included 20 young, healthy volunteers, 12 males and 8 females, with a mean age of $24{\pm}4$ years and a mean BMI of $23{\pm}2.28$. None of the subjects had known ankle instability. The following tests were assessed in each participant: single leg balance (SLB), percentage of leg press (PLP), single leg cycling (SLC), one leg squat (OLS), multiple direction reach-front/back/side (MDR-F/B/S), single leg hop (SLH), two leg jump (TLJ) and side step (SS). Data were analyzed using the SPSS 12.0 software program with ANOVA and t-test used. Results: When grouped by BMI, we found that despite differences in BMI, the performances of all subjects were equivalent except for the one-leg-squat test, for which the mean ratios for underweight ($1.69{\pm}0$), normal weight ($1.05{\pm}0.19$), and overweight ($0.93{\pm}0.30$) individuals were significantly different (p=0.02); ratios for SLB (p=0.273), SLC (p=0.903), PLP (p=0.664), MDR-F/B/S (p=0.498, 0.908, and 0.503, respectively), SLH (p=0.332) were not significantly different. When calculated according to gender, we found that the OLS (p=0.013) and MDRS (p=0.034) were significantly different, while parameters for all the remaining tests were not affected. Conclusion: We found that the SLB, PLP, SLC, MDR-F/B, and SLH ratios were unaffected by BMI or sex and, therefore, are reliable parameters for assessing ankle instability.
Giant leiomyoma in distal, intra-thoracic oesophagus: Is laparoscopic approach feasible?
Pratik Biswas,Vishakha Kalikar,Tanveer Majeed,Roy Patankar 소화기인터벤션의학회 2021 Gastrointestinal Intervention Vol.10 No.3
Leiomyomas are the most common benign tumor of the oesophagus. symptomatic patients are candidates for excision, we have discussed a case report of a 43-year-old male patient who had complains of progressive dysphagia. Imaging studies suggested a distal oesophageal mass with calcific foci. The tumor was enucleated laparoscopically with an operative time of 160 minutes. The patient was gradually started on oral feeds from the 3rd postoperative day after an upper gastrointestinal contrast study. The patient was discharged on the 5th postoperative day. We found this minimally invasive approach to be effective with a shorter hospital stay and a faster recovery as compared to a thoraco abdominal approach.
Giant leiomyoma in distal, intra-thoracic oesophagus: Is laparoscopic approach feasible?
Pratik Biswas,Vishakha Kalikar,Tanveer Majeed,Roy Patankar 소화기인터벤션의학회 2021 International journal of gastrointestinal interven Vol.10 No.3
Leiomyomas are the most common benign tumor of the oesophagus. symptomatic patients are candidates for excision, we have discussed a case report of a 43-year-old male patient who had complains of progressive dysphagia. Imaging studies suggested a distal oesophageal mass with calcific foci. The tumor was enucleated laparoscopically with an operative time of 160 minutes. The patient was gradually started on oral feeds from the 3rd postoperative day after an upper gastrointestinal contrast study. The patient was discharged on the 5th postoperative day. We found this minimally invasive approach to be effective with a shorter hospital stay and a faster recovery as compared to a thoraco abdominal approach.
Per-oral cholangioscopy via a gastric access loop for the management of recurrent hepatolithiasis
Sneha Lad,Suryaprakash Bhandari,Hardik Rajesh Shah,Nilesh Doctor,Roy Patankar,Smita Bhandari 소화기인터벤션의학회 2022 International journal of gastrointestinal interven Vol.11 No.4
This is a case report of the successful management of recurrent large intrahepatic stones using per-oral cholangioscopy via a gastric access loop created surgically during Roux-en-Y hepaticojejunostomy (HJ). A 55-year-old male presented with acute cholangitis. Radiodiagnostic imaging suggested hepatolithiasis in the left hepatic duct. He had experienced similar events on three occasions in the past, for which preliminary conventional endoscopic retrograde cholangiopancreatography and percutaneous transhepatic biliary drainage approaches proved only supportive. Hence definitive surgical treatment was performed with the patient`s consent during his third admission in the form of cholecystectomy, intraoperative retrieval of hepatolithiasis using a rigid ureteroscope, and Roux-en-Y HJ with gastric access loop formation. The gastric conduit facilitated prompt and convenient endoscopic access to enter the intrahepatic ducts and achieve complete ductal clearance using cholangioscopy-guided laser lithotripsy of the large intrahepatic stones. The patient remained asymptomatic at subsequent follow-up visits.
남준영(Junyoung Nam),이혜민(Christine Lee),Asif Ashraf Patankar,Hanxiang Wang,Yanfen Li,문현준(Hyeonjoon Moon) 한국방송·미디어공학회 2019 한국방송공학회 학술발표대회 논문집 Vol.2019 No.11
도시화 과정에서 도시의 생활폐기물 문제가 빠르게 증가되고 있고, 효과적이지 못한 생활폐기물 관리는 도시의 오염을 악화시키고 물리적인 환경오염과 경제적인 부분에서 극심한 문제들을 야기시킬 수 있다. 게다가 부피가 커서 관리하기 힘든 대형 생활폐기물들이 증가하여 도시 발전에도 방해가 된다. 생활폐기물을 처리하는데 있어 대형 생활폐기물 품목에 대해서는 요금을 청구하여 처리한다. 다양한 유형의 대형 생활폐기물을 수동으로 분류하는 것은 시간과 비용이 많이 든다. 그 결과 대형 생활폐기물을 자동으로 분류하는 시스템을 도입하는 것이 중요하다. 본 논문에서는 대형 생활폐기물 분류를 위한 시스템을 제안하며, 이 논문의 4 가지로 분류된다. 1) 높은 정확도와 강 분류(roust classification) 수행에 적합한 Convolution Neural Network(CNN) 모델 중 VGG-19, Inception-V3, ResNet50 의 정확도와 속도를 비교한다. 제안된 20 개의 클래스의 대형 생활폐기물의 데이터 셋(data set)에 대해 가장 높은 분류의 정확도는 86.19%이다. 2) 불균형 데이터 문제를 처리하기 Class Weight VGG-19(CW-VGG-19)와 Extreme Gradient Boosting VGG-19 두 가지 방법을 사용하였다. 3) 20 개의 클래스를 포함하는 데이터 셋을 수동으로 수집 및 검증하였으며 각 클래스의 컬러 이미지 수는 500 개 이상이다. 4) 딥 러닝(Deep Learning) 기반 모바일 애플리케이션을 개발하였다.
Per-oral cholangioscopy via a gastric access loop for the management of recurrent hepatolithiasis
Sneha Lad,Suryaprakash Bhandari,Hardik Rajesh Shah,Nilesh Doctor,Roy Patankar,Smita Bhandari 소화기인터벤션의학회 2022 Gastrointestinal Intervention Vol.11 No.4
This is a case report of the successful management of recurrent large intrahepatic stones using per-oral cholangioscopy via a gastric access loop created surgically during Roux-en-Y hepaticojejunostomy (HJ). A 55-year-old male presented with acute cholangitis. Radiodiagnostic imaging suggested hepatolithiasis in the left hepatic duct. He had experienced similar events on three occasions in the past, for which preliminary conventional endoscopic retrograde cholangiopancreatography and percutaneous transhepatic biliary drainage approaches proved only supportive. Hence definitive surgical treatment was performed with the patient`s consent during his third admission in the form of cholecystectomy, intraoperative retrieval of hepatolithiasis using a rigid ureteroscope, and Roux-en-Y HJ with gastric access loop formation. The gastric conduit facilitated prompt and convenient endoscopic access to enter the intrahepatic ducts and achieve complete ductal clearance using cholangioscopy-guided laser lithotripsy of the large intrahepatic stones. The patient remained asymptomatic at subsequent follow-up visits.