Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5485554 | Ultrasound in Medicine & Biology | 2017 | 8 Pages |
Abstract
We investigated the feasibility of using ultrasound colonography (USC) to visualize the healthy colon and rectum and detect colorectal polyps. Eight healthy volunteers underwent USC after standard bowel preparation. The feasibility and image quality of USC in different segments were evaluated. Then, USC was conducted on eight patients with known colonic neoplasms using colonoscopy as the reference standard. For volunteers, USC examinations were successfully performed on four (50.0%) ascending, three (37.5%) transverse and eight (100%) descending colons, as well as all sigmoid colons and rectums. One of four (25.0%) ascending, two of eight (25.0%) descending and all sigmoid colons and rectums were well visualized and free of artifacts. For patients, colonoscopy revealed that eight patients had 17 neoplasms in the distal sigmoid colon and rectum, which included 3 lesions â¤5 mm, 3 lesions 6-9 mm and 11 lesions â¥10 mm. USC visualized 12 of 17 (70.6%) neoplasms. Lesion detection by USC was 0% (0/3), 33.3% (1/3) and 100% (11/11) for neoplasms â¤5, 6-9 mm and â¥10 mm in size. USC can visualize the sigmoid colon and rectum well and detect distal sigmoid and rectal neoplasms â¥10 mm in diameter.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Acoustics and Ultrasonics
Authors
Jin-Ya Liu, Li-Da Chen, Jian-Bo Xu, Hui Wu, Jin-Ning Ye, Xin-Hua Zhang, Xiao-Yan Xie, Wei Wang, Ming-De Lu,