Jin Hei-Ying, Leng Qiang
Hei-Ying Jin, Qiang Leng, National Center of Colorectal Surgery, the Third Affiliated Hospital of Nanjing University of Traditional Chinese Medicine, Jiangsu Integrated Colorectal Oncology Center, Nanjing 210001, Jiangsu Province, China.
World J Gastroenterol. 2015 Jan 14;21(2):623-8. doi: 10.3748/wjg.v21.i2.623.
To determine the accuracy of endoscopic polyp size measurements using disposable graduated biopsy forceps (DGBF).
Gradations accurate to 1 mm were assessed with the wire of disposable graduated biopsy forceps. When a polyp was noted, endoscopists determined the width of the polyp; then, the graduated biopsy forceps was inserted and the largest diameter of the tumor was measured. After excision, during surgery or endoscopy, the polyp was measured using the vernier caliper.
One hundred and thirty-three colorectal polyps from 119 patients were studied. The mean diameter, by post-polypectomy measurement, was 0.92 ± 0.69 cm; 83 were < 1 cm, 36 were between 1 and 2 cm, and 14 were > 2 cm. The mean diameter, by visual estimation, was 1.15 ± 0.88 cm; compared to the actual size measured using vernier calipers, the difference was statistically significant. The mean diameter measured using the DGBF was 0.93 ± 0.68 cm; compared to the actual size measured using vernier calipers, this difference was not statistically significant. The ratio between the mean size estimated by visual estimation and the actual size was significantly different from that between the mean size estimated using the DGBF and the actual size (1.26 ± 0.30 vs 1.02 ± 0.11).
The accuracy of polyp size estimation was low by visual assessment; however, it improved when the DGBF was used.
确定使用一次性刻度活检钳（DGBF）进行内镜下息肉大小测量的准确性。
使用一次性刻度活检钳的金属丝评估精确到1毫米的刻度。发现息肉后，内镜医师确定息肉的宽度；然后，插入刻度活检钳并测量肿瘤的最大直径。切除后，在手术或内镜检查期间，使用游标卡尺测量息肉。
对119例患者的133个大肠息肉进行了研究。息肉切除术后测量的平均直径为0.92±0.69厘米；83个息肉<1厘米，36个息肉在1至2厘米之间，14个息肉>2厘米。视觉估计的平均直径为1.15±0.88厘米；与使用游标卡尺测量的实际大小相比，差异具有统计学意义。使用DGBF测量的平均直径为0.93±0.68厘米；与使用游标卡尺测量的实际大小相比，该差异无统计学意义。视觉估计的平均大小与实际大小的比值与使用DGBF估计的平均大小与实际大小的比值显著不同（1.26±0.30对1.02±0.11）。
通过视觉评估估计息肉大小的准确性较低；然而，使用DGBF时准确性有所提高。
