正常前列腺与良性前列腺增生经直肠超声实时弹性成像

Transrectal real-time elastography in normal prostate and benign prostatic hyperplasia

目的观察正常前列腺与良性前列腺增生(BPH)经直肠超声实时弹性成像(TRTE)的特征。方法对77例BPH患者及17名男性正常志愿者行TRTE检查,获得弹性图像后,采用弹性评分5分法进行分析,同时测量前列腺两侧移行区应变率比值、两侧周围区应变率比值及移行区与周围区的应变率比值,比较各个区域的硬度比。结果BPH组和正常前列腺组的前列腺弹性评分均为1～2分,两组评分差异无统计学意义(P=0.2252)。前列腺移行区应变率比值差异(P=0.9793)、周围区应变率比值差异(P=0.8986)、移行区与周围区的应变率比值差异(P=0.5233)均无统计学意义。结论TRTE能够提供正常前列腺和增生前列腺组织的硬度信息。

Objective To observe the characteristics of normal prostate gland and benign prostatic hyperplasia（BPH） on transrectal real-time elastography（TRTE）.Methods A total of 77 BPH patients and 17 normal subjects underwent TRTE.The elastographic images were analyzed with the five-point subjective elastic scale.The strain ratio of transition zone,peripheral zone,and transition zone to peripheral zone were respectively measured to compare the stiffness of each zone.Results The elasticity scores of both BPH group and normal prostate group were 1 and 2 in scoring system.There was no significant difference of elasticity scores between BPH group and normal prostate group（P =0.2252）,as well as in strain ratio of transition zone（P =0.9793）,peripheral zone（P =0.8986）,and transition zone to peripheral zone（P =0.5233）.Conclusion The stiffness of normal prostate gland and BPH could be offered by TRTE.