Department of Radiology, Armed Forces Capital Hospital, Seongnam 13574, Republic of Korea.
Department of Radiology, Korea University Anam Hospital, 73 Geryeodae-ro, Seongbuk-Gu, Seoul 02841, Republic of Korea.
Tomography. 2024 Jul 3;10(7):1031-1041. doi: 10.3390/tomography10070077.
There is little information regarding the size measurement differences in gallbladder (GB) polyps performed by different radiologists on abdominal ultrasonography (US).
To reveal the differences in GB polyp size measurements performed by different radiologists on abdominal US.
From June to September 2022, the maximum diameter of 228 GB polyps was measured twice on abdominal US by one of three radiologists (a third-year radiology resident [reader A], a radiologist with 7 years of experience in abdominal US [reader B], and an abdominal radiologist with 8 years of experience in abdominal US [reader C]). Intra-reader agreements for polyp size measurements were assessed by intraclass correlation coefficient (ICC). A Bland-Altman plot was used to visualize the differences between the first and second size measurements in each reader.
Reader A, reader B, and reader C evaluated 65, 77, and 86 polyps, respectively. The mean size of measured 228 GB polyps was 5.0 ± 1.9 mm. Except for the case where reader A showed moderate intra-reader agreement (0.726) for polyps with size ≤ 5 mm, all readers showed an overall high intra-reader reliability (reader A, ICC = 0.859; reader B, ICC = 0.947, reader C, ICC = 0.948), indicative of good and excellent intra-reader agreements. The 95% limit of agreement of reader A, B, and C was 1.9 mm of the mean in all three readers.
GB polyp size measurement on abdominal US showed good or excellent intra-reader agreements. However, size changes of approximately less than 1.9 mm should be interpreted carefully because these may be within the measurement error.
关于不同放射科医生在腹部超声检查（US）中对胆囊（GB）息肉大小测量的差异，相关信息较少。
揭示不同放射科医生在腹部 US 中对 GB 息肉大小测量的差异。
2022 年 6 月至 9 月，由三位放射科医生（一位三年级放射科住院医师[读者 A]、一位具有 7 年腹部 US 经验的放射科医生[读者 B]和一位具有 8 年腹部 US 经验的腹部放射科医生[读者 C]）对 228 个 GB 息肉的最大直径进行了两次腹部 US 测量。采用组内相关系数（ICC）评估息肉大小测量的组内一致性。Bland-Altman 图用于可视化每个读者的第一次和第二次大小测量之间的差异。
读者 A、读者 B 和读者 C 分别评估了 65、77 和 86 个息肉。228 个 GB 息肉的平均大小为 5.0±1.9mm。除了读者 A 对大小≤5mm 的息肉显示出中度组内一致性（0.726）外，所有读者均表现出总体高度的组内可靠性（读者 A，ICC=0.859；读者 B，ICC=0.947，读者 C，ICC=0.948），表明良好和优秀的组内一致性。三位读者的 95%一致性界限为所有三位读者的平均 1.9mm。
腹部 US 上的 GB 息肉大小测量显示出良好或优秀的组内一致性。然而，大小变化约小于 1.9mm 应谨慎解释，因为这些可能在测量误差范围内。
