Akademik Veri Yönetim Sistemi
ENDOSCOPY INTERNATIONAL OPEN, cilt.08, sa.11, 2020 (ESCI)
Background and study aims Fifty-eight percent of American adults aged 50 to 75 undergo colonoscopies. Multiple factors result in missed lesions, at a rate of approximately 20%, potentially subjecting patients to colorectal cancer. We report on use of a miniaturized optical scanner and accompanying processing software capable of detecting, measuring, and locating polyps with sub-millimeter accuracy, all in real time. Materials and methods A prototype 3D optical scanner was developed that fits within the dimensions of a standard endoscope. After calibration, the system was evaluated in an ex-vivo porcine colon model, using silicon-made polyps. Results The average distance between two adjacent points in the 3D point cloud was 94 mu m. The results demonstrate high-accuracy measurements and 3D models while operating at short distances. The scanner detected 6mmx3mm polyps in every trial and identified polyp location with 95-mu m accuracy. Registration errors were less than 0.8% between point clouds based on physical features. Conclusion We demonstrated that a novel 3D optical scanning system improves the performance of colonoscopy procedures by using a combination of 3D and 2D optical scanning and fast, accurate software for extracting data and generating models. Further studies of the system are warranted.