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    题名 作者 年代 出处 被引量
1Simple adaptive median filter for the removal of impulse noise from highly corrupted images 显示文摘HAIDI I NICHOLAS S P K THEAM F N 2008IEEE Trans Consumer Electronics2008,54,4:1
2Adaptive switching median filter utilizing quantized window size to remove impulse noise from digital images 显示文摘HAIDI I 2012Asian Transactions on Fundamentals of Electronics Communication and Multimedia2012,2,1:1
3Simple adaptive medi- an filter for the removal of impulse noise from highly corrup- ted images 显示文摘HAIDI I NICHOLAS S P KONG T F 2008IEEE Transactions on Consum Electronic2008,54,4:1
4Endoscopic resection of superficial bowel neoplasia:The unmet needs in the Egyptian practice显示文摘BACKGROUND Management of superficial bowel neoplasia(SBN)in early stages is associated with better outcomes.The last few decades experienced a paradigm shift in the management of SBN with the introduction of advanced endoscopic resection techniques(ERTs).However,there are no clear data about the aspects of ERTs in Egypt despite the growing gastroenterology practice.AIM To investigate the knowledge,attitude,and practice of ERTs toward management of SBN among Egyptian practitioners and the suitability of the endoscopy units’infrastructures toward these techniques.METHODS An online 2-pages questionnaire was used.The first page comprised demographic data,and questions for all physicians,about the knowledge(11 questions)of and attitude(5 questions)toward ERTs as a therapeutic option for SBN.The second page investigated the practice of ERTs by endoscopists(6 questions)and the infrastructures of their endoscopy units(14 questions).The survey was disseminated through July 2021 and the data were collected in an excel sheet and later analyzed anonymously.RESULTS The complete responses were 833/2300(36.2%).The majority of the participants were males(n=560,67.2%),middle-aged(n=366,43.9%),consultants(n=464,55.7%),gastroenterologists(n=678,81.4%),spending≥15 years in practice(n=368,44.2%),and were working in university hospitals(n=569,68.3%).The majority correctly identified the definition of SBN(88.4%)and the terms polypectomy,endoscopic mucosal resection(EMR),and endoscopic submucosal dissection(ESD)(92.1%,90.2%,and 89.1%respectively).However,26.9%,43.2%and 49.5%did not recognize the clear indication of polypectomy,EMR,and ESD respectively.Although 68.1%of physicians are convinced about the ERTs for management of SBN;only 8.9%referred all candidate cases for ERTs.About 76.5%of endoscopists had formal training in the basic polypectomy techniques while formal training for EMR and ESD was encountered only in 31.9%and 7.2%respectively.About 71.6%and 88.4%of endoscopists did not perform EMR or ESD in the last one year.Consequently,the complication rate reported by endoscopists was limited to 18.1%(n=103)of endoscopists.Only 25.8%of endoscopists feel confident in the management of ERTs-related complications and a half(49.9%)were not sure about their competency.Regarding the end-oscopy units’infrastructures,only 4.2%of the centers had their endoscopes 100%armed with optical enhancements and 54.4%considered their institutions ready for managing ERTs-related complications.Only 18.3%(n=104)of endoscopists treated their complicated cases surgically because the most frequent ERTs-related complications were procedural bleeding(26.7%),and perforations(17%).CONCLUSION A significant deficiency was reported in the knowledge and attitude of Egyptian practitioners caring for patients with SBN toward ERTs.The lack of trained endoscopists in both EMR and ESD in part is due to unsuitable infrastructures of many endoscopy units.Mohamed H Emara Mariam Zaghloul Haidi Karam-Allah Ramadan Salem Youssef Mohamed Mohammed Tag-Adeen Ahmed Alzamzamy Mohamed Alboraie Ahmad Madkour Ahmed Youssef Altonbary Tarik I Zaher Ahmed Abo Elhassan Nermeen Abdeen Mohammed Hussien Ahmed 2022World Journal of Gastrointestinal Endoscopy2022,14,4:0
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