Mingyue Luo1, Hong Shan, Kangrong Zhou. 1. Department of Radiology, Third University Hospital, Sun Yat-Sen University of Medical Sciences, Guangzhou 510630, China. myluo@yahoo.com.cn
Abstract
OBJECTIVES: To study the usefulness of CT virtual colonoscopy (CTVC) in patients with incomplete conventional colonoscopy (CC) and assess the statistical differences between two methods of colorectal segment examination. METHODS: Sixty patients with incomplete CC underwent volume scanning using spiral CT. CT VC images were obtained using a navigator software in workstation. All patients were confirmed by surgical or CC biopsy histology. Statistical analysis was done using t test comparing two sample percentages. RESULTS: CTVC succeeded in 55/60 patients (91.7%) who had incomplete CC. Additional lesions were identified in the proximal colon in 15/55 patients (27.3%), including 1 primary carcinoma, 16 polyps in 13 patients and 1 ulcerative colonitis. The main cause of incomplete CC was occlusive mass; others were redundant, tortuous colon loops, and excessive colonic spasm. There was a statistically significant difference between the two methods in colorectal segment examination. CONCLUSION: CTVC is a feasible and effective adjunctive method for evaluating the entire colorectal segment following an incomplete CC procedure. It offers a new approach for colorectal examination.
OBJECTIVES: To study the usefulness of CT virtual colonoscopy (CTVC) in patients with incomplete conventional colonoscopy (CC) and assess the statistical differences between two methods of colorectal segment examination. METHODS: Sixty patients with incomplete CC underwent volume scanning using spiral CT. CT VC images were obtained using a navigator software in workstation. All patients were confirmed by surgical or CC biopsy histology. Statistical analysis was done using t test comparing two sample percentages. RESULTS: CTVC succeeded in 55/60 patients (91.7%) who had incomplete CC. Additional lesions were identified in the proximal colon in 15/55 patients (27.3%), including 1 primary carcinoma, 16 polyps in 13 patients and 1 ulcerative colonitis. The main cause of incomplete CC was occlusive mass; others were redundant, tortuous colon loops, and excessive colonic spasm. There was a statistically significant difference between the two methods in colorectal segment examination. CONCLUSION: CTVC is a feasible and effective adjunctive method for evaluating the entire colorectal segment following an incomplete CC procedure. It offers a new approach for colorectal examination.
Authors: S Gryspeerdt; P Lefere; M Herman; R Deman; L Rutgeerts; G Ghillebert; F Baert; M Baekelandt; B Van Holsbeeck Journal: Eur Radiol Date: 2005-02-09 Impact factor: 5.315
Authors: Cristiano Spada; Jaap Stoker; Onofre Alarcon; Federico Barbaro; Davide Bellini; Michael Bretthauer; Margriet C De Haan; Jean-Marc Dumonceau; Monika Ferlitsch; Steve Halligan; Emma Helbren; Mikael Hellstrom; Ernst J Kuipers; Philippe Lefere; Thomas Mang; Emanuele Neri; Lucio Petruzziello; Andrew Plumb; Daniele Regge; Stuart A Taylor; Cesare Hassan; Andrea Laghi Journal: Eur Radiol Date: 2015-02 Impact factor: 5.315