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| 1 | Validation of a new scale for the assessment of bowel preparation quality显示文摘 | Alaa Rostom Emilie Jolicoeur | 2004 | Gastrointestinal Endoscopy2004，，4： | 2 |
| 2 | Colometer:A real-time quality feedback system for screening colonoscopy显示文摘AIM:To investigate the performance of a new software-based colonoscopy quality assessment system.METHODS:The software-based system employs a novel image processing algorithm which detects the levels of image clarity,withdrawal velocity,and level of the bowel preparation in a real-time fashion from live video signal.Threshold levels of image blurriness and the withdrawal velocity below which the visualization could be considered adequate have initially been determined arbitrarily by review of sample colonoscopy videos by two experienced endoscopists.Subsequently,an overall colonoscopy quality rating was computed based on the percentage of the withdrawal time with adequate visualization(scored 1-5;1,when the percentage was 1%-20%;2,when the percentage was 21%-40%,etc.).In order to test the proposed velocity and blurriness thresholds,screening colonoscopy withdrawal videos from a specialized ambulatory colon cancer screening center were collected,automatically processed and rated.Quality ratings on the withdrawal were compared to the insertion in the same patients.Then,3 experienced endoscopists reviewed the collected videos in a blinded fashion and rated the overall quality of each withdrawal(scored 1-5;1,poor;3,average;5,excellent) based on 3 major aspects:image quality,colon preparation,and withdrawal velocity.The automated quality ratings were compared to the averaged endoscopist quality ratings using Spearman correlation coefficient.RESULTS:Fourteen screening colonoscopies were assessed.Adenomatous polyps were detected in 4/14(29%) of the collected colonoscopy video samples.As a proof of concept,the Colometer software rated colonoscope withdrawal as having better visualization than the insertion in the 10 videos which did not have any polyps(average percent time with adequate visualization:79% ± 5% for withdrawal and 50% ± 14% for insertion,P < 0.01).Withdrawal times during which no polyps were removed ranged from 4-12 min.The median quality rating from the automated system and the reviewers was 3.45 [interquartile range(IQR),3.1-3.68] and 3.00(IQR,2.33-3.67) respectively for all colonoscopy video samples.The automated rating revealed a strong correlation with the reviewer's rating(ρ coefficient= 0.65,P = 0.01).There was good correlation of the automated overall quality rating and the mean endoscopist withdrawal speed rating(Spearman r coefficient= 0.59,P = 0.03).There was no correlation of automated overall quality rating with mean endoscopists image quality rating(Spearman r coefficient= 0.41,P = 0.15).CONCLUSION:The results from a novel automated real-time colonoscopy quality feedback system strongly agreed with the endoscopists' quality assessments.Further study is required to validate this approach. | Dobromir Filip Xuexin Gao Leticia Angulo-Rodriguez Martin P Mintchev Shane M Devlin Alaa Rostom Wayne Rosen Christopher N Andrews | 2012 | World Journal of Gastroenterology2012，18，32： | 2 |
| 3 | Prevalence of Adenomas and Colorectal Cancer in Average Risk Individuals: A Systematic Review and Meta-analysis显示文摘 | Steven J. Heitman Paul E. Ronksley Robert J. Hilsden Braden J. Manns Alaa Rostom Brenda R. Hemmelgarn | 2009 | Clinical Gastroenterology and Hepatology2009，，12： | 2 |
| 4 | Evidence of Endothelial Dysfunction in Patients With Inflammatory Bowel Disease显示文摘 | Idan Roifman Yichun C. Sun Jason P. Fedwick Remo Panaccione Andre G. Buret Hongqun Liu Alaa Rostom Todd J. Anderson Paul L. Beck | 2009 | Clinical Gastroenterology and Hepatology2009，，2： | 1 |
| 5 | The Use of Endoscopic Hemoclips for Postoperative Anastomotic Bleeding显示文摘 | Daniel C. Trottier Martin Friedlich Alaa Rostom | 2008 | Surgical Laparoscopy Endoscopy & Percutaneous Techniques2008，，3： | 1 |
| 6 | Validation of a new scale for the assessment of bowel preparation quality显示文摘 | Alaa Rostom Emilie Jolicoeur | 2004 | Gastrointestinal Endoscopy2004，，4： | 1 |
| 7 | Validation of a new scale for the assessment of bowel preparation quality显示文摘 | Alaa Rostom Emilie Jolicoeur | 2004 | Gastrointestinal Endoscopy2004，，4： | 1 |
| 8 | The diagnostic accuracy of serologic tests for celiac disease: A systematic review显示文摘 | Alaa Rostom Catherine Dubé Ann Cranney Navaaz Saloojee Richmond Sy Chantelle Garritty Margaret Sampson Li Zhang Fatemeh Yazdi Vasil Mamaladze Irene Pan Joanne MacNeil David Mack Dilip Patel David Moher | 2005 | Gastroenterology2005，，4： | 1 |
| 9 | The prevalence of celiac disease in average-risk and at-risk Western European populations: A systematic review显示文摘 | Catherine Dubé Alaa Rostom Richmond Sy Ann Cranney Navaaz Saloojee Chantelle Garritty Margaret Sampson Li Zhang Fatemeh Yazdi Vasil Mamaladze Irene Pan Joanne MacNeil David Mack Dilip Patel David Moher | 2005 | Gastroenterology2005，，4： | 1 |
| 10 | Evidence of Endothelial Dysfunction in Patients With Inflammatory Bowel Disease显示文摘 | Idan Roifman Yichun C. Sun Jason P. Fedwick Remo Panaccione Andre G. Buret Hongqun Liu Alaa Rostom Todd J. Anderson Paul L. Beck | 2009 | Clinical Gastroenterology and Hepatology2009，，2： | 1 |
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