20MHz与7.5MHz高频超声临床应用的对比研究

Comparison study between 20MHz and 7.5MHz high fre quency probe in clinical application

目的 :探讨对比运用 2 0MHz与 7 5MHz高频超声对皮肤、颌面部、甲状腺、乳腺、阴囊、浅表淋巴结等组织器官病变进行诊断的临床应用价值。方法 :运用 2 0MHz与 7 5MHz的探头分别检查 62例浅表器官病变的形态、大小及血流状况。结果 :2 0MHz检出钙化性病变 2 2例 ;细小结构的病变 12例 ;皮肤病变 2 8例。 7 5MHz检出钙化性病变 14例 ;细小结构的病变 2例 ;皮肤病变 9例。结论 :2 0MHz超高频超声对病变微小钙化灶的检出率明显高于 7.5MHz高频超声 ;对小的病灶及细小管状结构的检查如乳腺导管扩张、输精管扩张、腮腺管扩张。

Objective:To investigate the va lue of correlation of between 20MHz and 7.5MHz high frequency ultrasonography(HFU) in the diagnosis of diseases of s kin ,thyroid, breast, scrotum, lymph nodes.Methods:20MHz HFU were compared wi th 7.5MHz HFU in 62 cases with diseases of skin, thyroid, breast, scrotum, lymph nodes.Results:The pathology diagnosi s was breast cancer and thyroid cancer wi th a microcalcification 13 cases; testicular and epididymal tuberculosis with c alcification 9 cases; dilation of duct of breast 3 cases; dilation of deferent duct 2 cases; dilation of duct of sten 2 cases; penile induration 5 cases; diff used and nodositas diseases of skin 28 cases.Conclusion:Ultrasonography of 62 patients shows that 20MHz HFU is more high than 7.5 MHz HFU in relevance rat io of microcalcification(P<0.05); 20MHz HFU possess important value in dia gnosis of diseases of small and ductus, such as dilation of duct of breast, dila tion of deferent duct, dilation of duct of steno, penile induration and dermopa thy.