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| 1 | Bouveret's syndrome complicated by a distal gallstone ileus显示文摘AIM: Gastric outlet obstruction caused by duodenal impaction of a large gallstone migrated through a cholecystoduodenal fistula has been referred as Bouveret's syndrome. Endoscopic lithotomy is the first-step treatment,however, surgery is indicated in case of failure or complication during this procedure.METHODS: We report herein an 84-year-old woman presenting with features of gastric outlet obstruction due to impacted gallstone. She underwent an endoscopic retrieval which was unsuccessful and was further complicated by distal gallstone ileus. Physical examination was irrelevant.RESULTS: Endoscopy revealed multiple erosions around the cardia, a large stone in the second part of the duodenum causing complete obstruction, and wide ulceration in the duodenal wall where the stone was impacted. Several attempts of endoscopic extraction by using foreign body forceps failed and surgical intervention was mandatory. Preoperative ultrasound evidenced pneumobilia whilst computerized tomography showed a large stone, 5 cm×4 cm×3 cm, loggingat the proximal jejunum and another one, 2.5 cm×2 cm×2 cm,in the duodenal bulb causing a closed-loop syndrome. She underwent laparotomy and the jejunal stone was removed by enterotomy. Another stone reported as located in the duodenum preoperatively was found to be present in the gallbladder by intraoperative ultrasound. Therefore,cholecystoduodenal fistula was broken down, the stone was retrieved and cholecystectomy with duodenal repair was carried out. She was discharged after an uneventful postoperative course.CONCLUSION: As the simplest and the least morbid procedure, endoscopic stone retrieval should be attempted in the treatment of patients with Bouveret's syndrome.When it fails, surgical lithotomy consisting of simple enterotomy may solve the problem. Although cholecystectomy and cholecystoduodenal fistula breakdown is unnecessary in every case, conditions may urge the surgeon to perform such operations even though they carry high morbidity and mortality. | Rasim Gencosmanoglu Resit Inceoglu Caglar Baysal Sertac Akansel Nurdan Tozun | 2003 | World Journal of Gastroenterology2003，9，12： | 9 |
| 2 | Gastric polypoid lesions:Analysis of 150 endoscopic polypectomy specimens from 91 patients显示文摘AIM: To analyze gastric polypoid lesions in our patientpopulation with respect to histopathologic features and demographic, clinical, and endoscopic characteristics of patients.METHODS: Clinical records and histopathologic reports of patients with gastric polypoid lesions were analyzed retrospectively. All lesions had been totally removed by either endoscopic polypectomy or hot biopsy forceps. The histopathologic slides were re-evaluated by the same histopathologist.RESULTS: One-hundred and fifty gastric polypoid lesions were identified in 91 patients. There were 53 (58%) women and 38 (42%) men with a median age of 53 (range, 31 to 82) years. The most frequent presenting symptom was dyspepsia that was observed in 35 (38.5%) patients.Symptoms were mostly related to various associated gastric abnormalities such as chronic gastritis or H pylori infection rather than polypoid lesion itself. Polypoid lesions were commonly located in the antrum followed by cardia. Out of 150 lesions, 80 (53%) had the largest dimensions less than or equal to 5 mm and only 7 were pedunculated. The frequencies of hyperplastic polyps, foveolar hyperplasia, and fundic gland polyps were 46%, 18%, and 14% respectively.We also detected gastritis varioliformis in 12 specimens,lymphoid follicles in 9, 4 adenomatous polyps in 4, polypoid lesions with edematous mucosa in 4, inflammatory polyps in 3, and carcinoid tumor in 1. Adenomatous changes were observed within two hyperplastic polyps and low grade dysplasia in one adenoma. Histopathologic evaluation of the surrounding gastric mucosa demonstrated chronic gastritis in 72 (79%) patients and H pylori infection in 45 (49%).CONCLUSION: Hyperplastic polyps are the most frequently encountered subtype of gastric polypoid lesions. They are usually associated with chronic gastritis or H pylori gastritis. Contrary to the previous belief, they may harbour adenomatous changes or dysplastic foci.Therefore, endoscopic polypectomy seems as a safe and fast procedure for both diagnosis and treatment of gastric polypoid lesions at the same session. In addition,edematous mucosa may appear misleadingly as a polypoid lesion in some instances and it can be ruled out only by histopathologic examination. | Rasim Gencosmanoglu Ebru Sen-Oran Ozlem Kurtkaya-Yapicier Erol Avsar Aydin Sav Nurdan Tozun | 2003 | World Journal of Gastroenterology2003，9，10： | 8 |
| 3 | Efficient algorithm for big data clustering on single machine显示文摘Big data analysis requires the presence of large computing powers, which is not always feasible. And so, itbecame necessary to develop new clustering algorithms capable of such data processing. This study proposes a newparallel clustering algorithm based on the k-means algorithm. It significantly reduces the exponential growth ofcomputations. The proposed algorithm splits a dataset into batches while preserving the characteristics of the initialdataset and increasing the clustering speed. The idea is to define cluster centroids, which are also clustered, for eachbatch. According to the obtained centroids, the data points belong to the cluster with the nearest centroid. Real largedatasets are used to conduct the experiments to evaluate the effectiveness of the proposed approach. The proposedapproach is compared with k-means and its modification. The experiments show that the proposed algorithm is apromising tool for clustering large datasets in comparison with the k-means algorithm. | Rasim M.Alguliyev Ramiz M.Aliguliyev Lyudmila V.Sukhostat | 2020 | CAAI Transactions on Intelligence Technology2020，5，1： | 3 |
| 4 | Forward and reverse displacement analysis of a 6-DOF in-parallel manipulator显示文摘 | Rasim S Alizade I | 1994 | Manufocturing & Machine Theory1994，29，1： | 1 |
| 5 | Structural synthesis of parallel manipulators显示文摘 | Rasim Alizade Cagdas Bayram | 2004 | Mechanism and Machine Theory2004，39，： | 1 |
| 6 | Accuracy Assessment Using Sub-pi-xel Error Matrices of Global Land Cover Products Derived fromSatellite Data显示文摘 | Rasim Latifovic Ian Olthof | 2004 | Remote Sensing of Environment2004，90，2： | 1 |
| 7 | A forward and reverse displacement analysis of a 6-dof in-parallel manipulator 显示文摘 | Shou Rasim Alizade I | 1994 | MechMa- chine Theory1994，29，1： | 1 |
| 8 | Dual surface acoustic wave- based active mixing in a microfluidic channel显示文摘 | MYEONG C J RASIM G | 2013 | Sen- sors and Actuators A: Physical2013，196，1： | 1 |
| 9 | Effects of polydimethylsi- loxane (PDMS) microchannels on surface acoustic wave-based microfluidic devices 显示文摘 | MYEONG C J RASIM G | 2014 | Microelectronic Engineering2014，113，1： | 1 |
| 10 | Dual surface acoustic wavebased active mixing in a microfluidic channel显示文摘 | MYEONG C J RASIM G | 2013 | Sensors and Actuators A:Physical2013，196，1： | 1 |
| 11 | Forced convection heat transfer and pressure drop for a horizontal cylinder with vertically attached imperforate and perforated circular fins显示文摘 | Rasim Karabacak Giilay Yakar | 2011 | Energy Conversion and Management2011，52，89： | 1 |
| 12 | Feasibility, diagnostic accuracy, and effectiveness of decentralised use of the Xpert MTB/RIF test for diagnosis of tuberculosis and multidrug resistance: a multicentre implementation study显示文摘 | Catharina C Boehme Mark P Nicol Pamela Nabeta Joy S Michael Eduardo Gotuzzo Rasim Tahirli Ma Tarcela Gler Robert Blakemore William Worodria Christen Gray Laurence Huang Tatiana Caceres Rafail Mehdiyev Lawrence Raymond Andrew Whitelaw Kalaiselvan Sagadevan | 2011 | The Lancet2011，，9776： | 1 |
| 13 | Accuracy assessment using sub-pixel fractional error matrices of global land cover products derived from satellite data显示文摘 | Rasim Latifovic Ian Olthof | 2004 | Remote Sensing of Environment2004，，2： | 1 |
| 14 | Analytical synthesis of function generating spherical four-bar mechanism for the five precision points 显示文摘 | Rasim I Alizade Ozgur Kilit | 2005 | Mechanism and Machine Theory2005，40，7： | 1 |
| 15 | Pre-and post-estrogen administration in global cerebral ischemia reduces blood-brain barrier breakdown in ovariectomized rats显示文摘 | G Uzum N Baltaci Rasim | 2015 | Acta physiologica Hungarica2015，102，1： | 1 |
| 16 | Analytical synthesis of function generating spherical four-bar mechanism for the five precision points 显示文摘 | Rasim I Alizade 0zgiir Kilit | 2005 | Mechanism and Machine Theory2005，40，7： | 1 |
| 17 | Forward and reverse displacement analysis of a 6-DOF in-parallel manipulators显示文摘 | Rasim S Alizade I | 1997 | International Journal of Tools & Manufacture1997，39，2： | 1 |
| 18 | The current status of wind energy in Turkey and in the world显示文摘 | Cumali Ilkilig Huseyin Aydm Rasim Behcet | 2011 | Energy policy2011，39，2： | 1 |
| 19 | Digital zenith camera system for astro-geodetic applications in turkey显示文摘 | KEREM H RASIM D HALUK O | 2012 | Journal of Geodesy and Geoinformation2012，1，2： | 1 |
| 20 | Dual Surface Acoustic Wave-Based Active Mixing in a Microfluidic Channel显示文摘 | Myeong C J Rasim G | 2013 | Sensors and Actuators A: Physical2013，196，1： | 1 |
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