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[目的]探讨睾丸精原细胞瘤的二维及彩色多普勒声像图特征。[方法]综合分析经病理证实的98例睾丸精原细胞瘤二维声像图的形态、大小、边界及内部回声和瘤体内血流信号分级及频谱特征。[结果]睾丸精原细胞瘤超声多表现为局限性低回声,瘤体内血流信号丰富,形态不规则,多呈分支状。超声诊断符合率为91.8%(90/98)。51例患者(共61例作血流频谱采集)呈枝状肿瘤血管中均可检测出阻力指数小于0.6的血管,且其阻力指数从主干到末梢逐级增加。[结论]睾丸精原细胞瘤的二维及彩色多普勒超声声像图表现具有一定特征性,多表现为低回声、血供丰富、血流阻力指数较低,具有较高的诊断符合率。
[Objective] To investigate the two-dimensional and color Doppler echographic features of testicular seminoma. [Methods] The morphology, size, boundary, internal echo and tumor blood flow signal classification and spectrum characteristics of 98 cases of testicular seminoma with pathological examination were analyzed. [Result] Ultrasound of testicular seminoma mostly showed limited hypoechoicity. The signal of blood flow in the tumor was rich and the shape was irregular with many branches. The coincidence rate of ultrasonic diagnosis was 91.8% (90/98). Fifty-one patients (61 of them were collected for blood flow spectrum) showed blood vessels with a resistance index of less than 0.6 in dendritic vessels, and the resistance index gradually increased from the trunk to the distal end. [Conclusion] The two-dimensional and color Doppler sonography of testicular seminoma has some characteristic features, including low hypoechysia, abundant blood supply, low blood flow resistance index and high diagnostic coincidence rate .