Department of Radiology, School of Medicine, Kocaeli University, Kocaeli 41380, Turkey.
Department of Radiology, School of Medicine, Kocaeli University, Kocaeli 41380, Turkey.
Clin Breast Cancer. 2022 Aug;22(6):515-520. doi: 10.1016/j.clbc.2022.03.008. Epub 2022 May 6.
The purpose of this study is to detect and compare the diagnostic performances of vascularity index (VI) via superb microvascular imaging (SMI) and shear wave elastography (SWE) in metastatic axillary lymphadenopathy and lymphadenitis.
The study is based on 45 female patients who were ultrasonographed due to swelling in the axilla and underwent SWE and SMI before tru-cut biopsy, between August 2019 and February 2021. The patients had a total of 53 lymph nodes (LNs), 38 of these were metastatic and 15 were lymphadenitis.
The results showed that mean volumes, value of cortex thickness, elasticity and velocity values, and mean VI values were significantly higher in metastatic LAP group compared to lymphadenitis group. Correlation analysis showed that both VI (r: 0.44) and elastography (r: 0.52) values were positively correlated with the cortex thickness, while elastography values were strongly correlated with volume (r: 0.42) and short diameter (r: 0.40). For differentiating lymphadenitis and metastatic LAP, the optimal cut-off VI value was 8.55 while the optimal cut-off elastography value was 31.8 kPa.
In conclusion, combined grayscale ultrasonography evaluation of lymph nodes with SWE and SMI increase the diagnostic performance in distinguishing lymphadenitis-metastatic LAP.
本研究旨在检测和比较超级微血管成像（SMI）和剪切波弹性成像（SWE）在转移性腋窝淋巴结病和淋巴结炎中的诊断性能。
本研究基于 2019 年 8 月至 2021 年 2 月期间因腋窝肿胀而接受超声检查并在 tru-cut 活检前接受 SWE 和 SMI 的 45 名女性患者。这些患者共有 53 个淋巴结（LN），其中 38 个为转移性，15 个为淋巴结炎。
结果表明，转移性 LAP 组的平均体积、皮质厚度值、弹性和速度值以及平均 VI 值明显高于淋巴结炎组。相关性分析表明，VI（r：0.44）和弹性成像（r：0.52）值均与皮质厚度呈正相关，而弹性成像值与体积（r：0.42）和短直径（r：0.40）呈强相关。对于鉴别淋巴结炎和转移性 LAP，最佳 VI 值为 8.55，最佳弹性成像值为 31.8kPa。
总之，联合淋巴结灰阶超声评估与 SWE 和 SMI 可提高鉴别淋巴结炎-转移性 LAP 的诊断性能。
