A retrospective analysis of 1695 patients, 719 males and 976 females, with colorectal tumors, hospitalized in St. Marina University Hospital of Varna during the period between January 1, 2021 and December 31, 2021 was carried out. They were examined by means of virtual colonoscopy (VCS) while 812 of them, 368 males and 444 females, were additionally examined using fibrocolonoscopy (FCS). The number of patients was greatest in 2016 (310 in VCS and 155 in FCS) but lowest in 2021 (55 in VCS and 30 in FCS). Colorectal polyps were diagnosed independently by means of VCS in a total of 308 patients (in 147 males and 161 females) (18.17%), while using FCS, they were diagnosed in a total of 203 patients (in 107 males and 96 females) (in 25.00% of the cases). With VCS, synchronous colorectal tumors, such as colorectal polyp and CRC, were diagnosed in a total of 62 patients, 34 men and 28 women. The average colorectal polyp size in VCS was 10.486 mm (between 6.4 mm and 11.6 mm), but that in FCS was 9.101 mm (between 7.3 mm and 12.75 mm). The average localization in VCS was 57.232 cm (between 39.5 cm and 72.86 cm), but that in FCS was 47.855 cm (between 33.3 and 70.0 cm). The method of VCS should be more widely applied in colorectal polyp patients in our country.
Abdelnaby HB, Abuhussein AA, Fouad AM, Alhashash WA, Aldousari AS, Abdelaleem AM, et al. Histopathological and epidemiological findings of colonoscopy screening in a population with an average risk of colorectal cancer in Kuwait. Saudi J Gastroenterol. 2021;27(3):158-165.
Doyle JB, Krigel A, Lebwohl B. Prevalence of adenomas on surveillance colonoscopies for patients with a history of colonic polyps of unknown histology. Dig Dis Sci. 2021 Jun 22. doi: 10.1007/s10620-021-07108-w.
Hsu PK, Huang JY, Su WW, Wei JC. Type 2 diabetes and the risk of colorectal polyps: A retrospective nationwide population-based study. Medicine (Baltimore). 2021 May 14;100(19):e25933. doi: 10.1097/MD.0000000000025933.
Ivanov K, Ignatov V, Petrov D, Tonev A, Zlatarov A, Naydenova B et al. Role of virtual colonoscopy for diagnosis of colorectal tumours. Madridge J Surg. 2018;1(1):1-5.
Koirala D, Pathak R, Kafle Bhandari B, Jha A, Hamal R, Gnawali A, et al. Detection of colonic polyps during colonoscopy in a tertiary care center of Nepal. J Nepal Health Res Counc. 2021;19(3):596-602.
Kudo SE, Mori Y, Abdel-Aal UM, Misawa M, Itoh H, Oda M, et al. Artificial intelligence and computer-aided diagnosis for colonoscopy: where do we stand now? Transl Gastroenterol Hepatol. 2021 Oct 25;6:64. doi: 10.21037/tgh.2019.12.14.
Lui RN, Kyaw MH, Lam TYT, Ching JYL, Chan VCW, Wong MCS, et al. Prevalence and risk factors for sessile serrated lesions in an average risk colorectal cancer screening population. J Gastroenterol Hepatol. 2021;36(6):1656-1662.
Manfredi L. Endorobots for colonoscopy: design challenges and available technologies. Front Robot AI. 2021 Jul 14;8:705454. doi: 10.3389/frobt.2021.705454.
Mathew S, Nadeem S, Kaufman A. Visualizing missing surfaces in colnoscopy videos using shared latent space representations. Proc IEEE Int Symp Biomed Imaging. 2021;2021:329-333.
Oden K, Nelson M, Williams L. Colonoscopy screening and polyp detection in the Southeastern United States. Gastroenterol Nurs. 2022;45(1):59-62.
Pang AJ, Harra Z, Chen L, Morin NA, Faria JJ, Ghitulescu GA, et al. Understanding the burden of colorectal adenomas in patients younger than 50 years of age: a large single-center retrospective cohort study. Dis Colon Rectum. 2021 Dec 9. doi: 10.1097/DCR.0000000000002069.
Park JH, Moon HS, Kwon IS, Kim JS, Kang SH, Lee ES, et al. Quality of preoperative colonoscopy affects missed postoperative adenoma detection in colorectal cancer patients. Dig Dis Sci. 2020;65(7):2063-2070.
Park SH, Hong KI, Park HC, Kim YS, Bok GH, Kim KH, et al.; Korean Society of Digestive Endoscopy (KSDE) Polyp Study Workgroup. Colon polyp detection in primary health care institutions of Korea: detection rate and issues with following the guidelines. Korean J Gastroenterol. 2021;78(6):328-336.
Peleg N, Sapoznikov S, Levi Z, Dotan I, Shamah S. Incidence of colorectal adenomas after bariatric surgery: pre-operative super morbid obesity is independently associated with increased risk. Obes Surg. 2021;31(10):4220-4226.
Refai H, Koudsi B, Kudsi OY. Novel polyp detection technology for colonoscopy: 3D optical scanner. Endosc Int Open. 2020;8(11):E1553-E1559.
Schreuder RM, van der Zander QEW, Fonollà R, Gilissen LPL, Stronkhorst A, Klerkx B, et al. Algorithm combining virtual chromoendoscopy features for colorectal polyp classification. Endosc Int Open. 2021;9(10):E1497-E1503.
Sekhon Inderjit Singh HK, Armstrong ER, Shah S, Mirnezami R. Application of robotic technologies in lower gastrointestinal tract endoscopy: A systematic review. World J Gastrointest Endosc. 2021;13(12):673-697.
Shine R, Bui A, Burgess A. Quality indicators in colonoscopy: an evolving paradigm. ANZ J Surg. 2020;90(3):215-221.
Weigt J, Repici A, Antonelli G, Afifi A, Kliegis L, Correale L, et al. Performance of a new integrated computer-assisted system (CADe/CADx) for detection and characterization of colorectal neoplasia. Endoscopy. 2022;54(2):180-184.
Wolff WI. Colonoscopy: history and development. Am J Gastroenterol. 1989;84(9):1017-1025.
Wu F, Wang B, Zhuang P, Lu Z, Li Y, Wang H, et al. Association of preserved vegetable consumption and prevalence of colorectal polyps: results from the Lanxi Pre-colorectal Cancer Cohort (LP3C). Eur J Nutr. 2022;61(3):1273-1284.
Yao H, Stidham RW, Gao Z, Gryak J, Najarian K. Motion-based camera localization system in colonoscopy videos. Med Image Anal. 2021 Oct;73:102180. doi: 10.1016/j.media.2021.102180.
Zhang S, Zhang J, Kim Y, Zhang W. Prevalence of colorectal polyps based on cardiorespiratory fitness, muscle strength, health behavior, and abdominal obesity in asymptomatic elderly. Healthcare (Basel). 2021 Oct 19;9(10):1400. doi: 10.3390/healthcare9101400.
Zhang Y, Chen L, Chen H. A meta-analysis of the correlation between non-steroidal anti-inflammatory drugs and recurrent colorectal adenomatous polyps. Am J Transl Res. 2021;13(4):2432-2438.
