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目的探讨早产儿脑室周围白质软化（ＰＶＬ）的早期诊断，并对围产因素进行分析。方法对３６例早产儿生后３～４天行颅脑Ｂ超检查。结果３６例中Ｂ超诊断脑室周围白质高回声强度（ＰＶＥ）阳性１２例，最早出现Ｂ超ＰＶＥ改变在生后第３天，平均消失时间为２周。结论Ｂ超可对ＰＶＬ作出早期诊断，并为早期干预提供依据。
Objective To investigate the early diagnosis of periventricular leukomalacia (PVL) in preterm infants and to analyze the perinatal factors. Methods 36 cases of premature infants 3 to 4 days after birth underwent brain ultrasound B examination. Results Among the 36 cases, 12 cases were diagnosed by B-mode ultrasonography and 12 cases had positive PVE. The first appearance of B-PVE was on the 3rd day after birth with an average disappearance time of 2 weeks. Conclusion B-ultrasound can make early diagnosis of PVL and provide the basis for early intervention.