PDF(Pubmed)
Abstract：
BACKGROUND: There is little information regarding the size measurement differences in gallbladder (GB) polyps performed by different radiologists on abdominal ultrasonography (US).
OBJECTIVE: To reveal the differences in GB polyp size measurements performed by different radiologists on abdominal US.
METHODS: 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.
RESULTS: 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.
CONCLUSIONS: 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.
OBJECTIVE: To reveal the differences in GB polyp size measurements performed by different radiologists on abdominal US.
METHODS: 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.
RESULTS: 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.
CONCLUSIONS: 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.
摘要：
背景：关于不同放射科医师在腹部超声（US）上进行的胆囊（GB）息肉的大小测量差异的信息很少。
目的：揭示不同放射科医师对腹部US进行的GB息肉大小测量的差异。
方法：从2022年6月至9月，由三名放射科医师之一在腹部US上两次测量了228个GB息肉的最大直径（第三年放射科住院医师[读者A]，具有7年腹部US经验的放射科医生[读者B]，以及在腹部US方面有8年经验的腹部放射科医生[读者C]）。通过组内相关系数（ICC）评估息肉大小测量的阅读器内协议。使用Bland-Altman图可视化每个读取器中的第一和第二尺寸测量值之间的差异。
结果：读者A，读者B,读者C评估了65、77和86个息肉，分别。测得的228个GB息肉的平均大小为5.0±1.9mm。除读者A对大小≤5mm的息肉表现出中等程度的读者内部一致性(0.726)外，所有读者都表现出整体较高的读者内部可靠性(读者A，ICC=0.859；读取器B，ICC=0.947，读卡器C，ICC=0.948)，表明良好和优秀的读者内部协议。读者A同意的95%限制，B,在所有三个读者中，C是平均值的1.9毫米。
结论：在腹部US上进行的GB息肉大小测量显示出良好或优异的阅读器内协议。然而,大约小于1.9毫米的尺寸变化应仔细解释，因为这些可能在测量误差范围内。
目的：揭示不同放射科医师对腹部US进行的GB息肉大小测量的差异。
方法：从2022年6月至9月，由三名放射科医师之一在腹部US上两次测量了228个GB息肉的最大直径（第三年放射科住院医师[读者A]，具有7年腹部US经验的放射科医生[读者B]，以及在腹部US方面有8年经验的腹部放射科医生[读者C]）。通过组内相关系数（ICC）评估息肉大小测量的阅读器内协议。使用Bland-Altman图可视化每个读取器中的第一和第二尺寸测量值之间的差异。
结果：读者A，读者B,读者C评估了65、77和86个息肉，分别。测得的228个GB息肉的平均大小为5.0±1.9mm。除读者A对大小≤5mm的息肉表现出中等程度的读者内部一致性(0.726)外，所有读者都表现出整体较高的读者内部可靠性(读者A，ICC=0.859；读取器B，ICC=0.947，读卡器C，ICC=0.948)，表明良好和优秀的读者内部协议。读者A同意的95%限制，B,在所有三个读者中，C是平均值的1.9毫米。
结论：在腹部US上进行的GB息肉大小测量显示出良好或优异的阅读器内协议。然而,大约小于1.9毫米的尺寸变化应仔细解释，因为这些可能在测量误差范围内。
