Hofstad B, Vatn M, Larsen S, Huitfeldt H S, Osnes M
Medical Dept., Ullevål Hospital, Norway.
Endoscopy. 1994 Jun;26(5):461-5. doi: 10.1055/s-2007-1009004.
The present study was performed to test the reliability of in situ measurements of colorectal polyps when comparing videoendoscopes with fiberoptic endoscopes. In 25 small rectosigmoid polyps 3-12 mm) removed endoscopically, in situ diameters were measured before polypectomy using both video- and fiberoptic endoscopes. Polaroid and videoprint pictures were taken for computerised analysis of the area of the polyps on the pictures. The results showed a good correlation between the polyp diameter measured with the videoendoscope and fiberoptic endoscope (r = 0.97), with no significant difference by parametric testing. The diameter and weight of the removed polyp also correlated well with the diameter measured in situ using videoendoscopes (r = 0.92 and 0.77, respectively) or fiberoptic endoscopes (r = 0.90 and 0.81, respectively). Furthermore, the weight of the removed polyp correlated reasonably well to the computerised area measurement, the correlation coefficient being r = 0.90 for fiberoptic endoscopes and r = 0.75 for videoendoscopes. We conclude that in situ polyp diameter measurements using videoendscopes and fiberoptic endoscopes are similarly reliable and sensitive, and both instruments can be used interchangeably in follow-up studies of polyp growth.
本研究旨在比较视频内镜和纤维内镜时，测试结直肠息肉原位测量的可靠性。对25例经内镜切除的3 - 12毫米的乙状结肠直肠小息肉，在息肉切除术前使用视频内镜和纤维内镜测量原位直径。拍摄宝丽来照片和视频打印照片，用于计算机分析照片上息肉的面积。结果显示，视频内镜和纤维内镜测量的息肉直径之间具有良好的相关性（r = 0.97），参数检验无显著差异。切除息肉的直径和重量与使用视频内镜（分别为r = 0.92和0.77）或纤维内镜（分别为r = 0.90和0.81）原位测量的直径也具有良好的相关性。此外，切除息肉的重量与计算机面积测量结果相关性较好，纤维内镜的相关系数为r = 0.90，视频内镜为r = 0.75。我们得出结论，使用视频内镜和纤维内镜进行息肉原位直径测量同样可靠且灵敏，两种仪器在息肉生长的随访研究中可互换使用。
