Interdisciplinary Centre of Ultrasound Diagnostics, University Hospital Giessen and Marburg, Philipp University of Marburg, Baldingerstraße Marburg, Marburg, Germany
Gastroenterology, Endocrinology, Metabolism and Clinical Infectiology, University Hospital Giessen and Marburg, Philipp University of Marburg, Marburg, Germany, Marburg, Germany.
BMJ Open Gastroenterol. 2022 May;9(1). doi: 10.1136/bmjgast-2022-000901.
To evaluate the feasibility and diagnostic performance of acoustic radiation force impulse (ARFI) elastography in different omental masses (OM).
This was a retrospective analysis of 106 patients with OM defined as omental thickness ≥1 cm, who underwent abdominal B-mode ultrasound (US) and standardised ARFI examinations of the OM between September 2018 and June 2021 at our university hospital. A cytohistological confirmation was available in 91/106 (85.8%) of all OM, including all 65/65 (100%) malignant OM (mOM) and 26/41 (63.4%) of benign OM (bOM). In 15/41 (36.6%) of bOM; cross-sectional imaging and or US follow-up with a mean duration of 19.8±3.1 months was performed. To examine the mean ARFI velocities (MAV) for potential cut-off values between bOM and mOM a receiver operating characteristic analysis was implemented.
The MAV in the mOM group (2.71±1.04 m/s) was significantly higher than that of bOM group (1.27±0.87 m/s) (p<0.001). Using 1.97 m/s as a cut-off yielded a sensitivity and specificity of 76.9% and 85.4%, respectively, in diagnosing mOM (area under the curve=0.851, 95% CI=0.774 to 0.928).
ARFI elastography is feasible in the omentum and may represent a good non-invasive additional tool in differentiating bOM from mOM.
评估声辐射力脉冲（ARFI）弹性成像在不同网膜肿块（OM）中的可行性和诊断性能。
这是对 2018 年 9 月至 2021 年 6 月在我们大学医院接受腹部 B 型超声（US）和 OM 标准 ARFI 检查的 106 例 OM 厚度≥1cm 的患者的回顾性分析。91/106（85.8%）例 OM 均获得细胞学或组织学证实，包括 65/65（100%）恶性 OM（mOM）和 26/41（63.4%）良性 OM（bOM）。在 41 例 bOM 中，有 15 例（36.6%）进行了横断面成像和/或 US 随访，平均随访时间为 19.8±3.1 个月。为了检查 bOM 和 mOM 之间潜在的截断值的平均 ARFI 速度（MAV），进行了接收者操作特征分析。
mOM 组的 MAV（2.71±1.04m/s）明显高于 bOM 组（1.27±0.87m/s）（p<0.001）。使用 1.97m/s 作为截断值，诊断 mOM 的敏感性和特异性分别为 76.9%和 85.4%（曲线下面积=0.851，95%可信区间=0.774 至 0.928）。
ARFI 弹性成像在网膜中是可行的，可能是区分 bOM 和 mOM 的一种很好的无创附加工具。
