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目的：探讨超声诊断在女童特发性性早熟中的诊断价值。方法：对临床及实验室检查确诊的特发性性早熟及正常女童进行超声检查，观察其子宫大小，卵巢大小，一个切面最大卵泡数和最大卵泡直径，并用公式计算子宫容积和卵巢容积：，比较检查结果。测量乳核大小及乳腺腺体发育情况，两者结合可对真性性早熟作出准确诊断。结果：患儿子宫测值大于正常同龄女童，差异有显著性（P＜0.05）。患儿卵巢容积和卵泡最大直径均大于正常同龄女童，差异有显著性（P＜0.05）。结论：超声检查对特发性性早熟的诊断有重要的实用价值。“,”ObjectiveTo investigate the value of ultrasonography in the diagnosis of girls with idiopathic precocions puberty.Methods The uterine,ovarian follicles were measured by ultrasound.Then these indexes were compared with the normal control groups in the same age.ResultsThe uterine volumes, ovarian volumes, the size and the numbers of follicles larger than those of the normal control group(P<0.05).ConclusionUltrasonography has great value on diagnosing idiopathic precocious puberty.