子宫颈占位性病变的经阴道实时弹性成像表现

Appearance of cervical lesions in transvaginal real-time elastography

目的探讨子宫颈占位性病变的实时超声弹性成像表现。方法分析20例宫颈良性占位性病变、40例宫颈癌以及20例正常宫颈超声弹性成像表现，分别采用改良弹性评分标准对其进行弹性评分和应变率比值测定，并与病理结果作对比。结果正常宫颈弹性图像评分100％为1分；宫颈良性占位性病变弹性图像评分95％≤2分，宫颈良性占位性病变的弹性应变率比值为0．75±0．32；宫颈癌弹性评分90％≥3分，宫颈癌应变率比值3．31±1．47。良恶性占位性病变弹性评分间差异有统计学意义（P〈0．001），良恶性占位性病变弹性应变率比值间差异有统计学意义（P〈0．001）。结论不同性质的宫颈占位性病变弹性图像具有较明显的特征性表现。

Objective To evaluate the features of cervical lesions on real-time elastography. Methods The elastograms of cervical lesions were analyzed and all of them were evaluated by improved elastographic strain scores, which were classified into 5, and by strain ratio, with pathologic analysis as the reference standard. Results The elasticity scores of all normal cervixes were 1. The score of 95% of benign lesions was not more than 2,the strain ratios of benign lesions were 0.75 ± 0.32. The score of 90% of the cervical cancer was not less than 3, the strain ratios of 38 malignant lesions were 3.31 ± 1.47. There were significant difference between benign lesions and malignant lesions in elastic scores and elastic strain ratios （P 〈0. 001）. Conclusions There are some typical features of different cervical lesions on elastography.