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收集 53例临床上有宫内窒息史和 8例无宫内窒息史、产伤史的足月新生儿 ,进行临床分度和CT分度对照。在临床与CT不符合的新生儿中 ,CT分度重于临床分度 14例 ,均为轻度新生儿缺氧缺血性脑病 (HIE) ,占其中 4 1 2 %。CT诊断蛛网膜下腔出血 (SAH) 38例 ,其中 14例为正常硬膜窦影 ,假阳性率为 36 8%。CT分度轻于临床分度 8例 ,其中 4例为中度和重度HIE。造成CT与临床诊断不符合的主要原因是对新生儿正常影像认识不足 ,包括生理性低密度和上矢状窦高密度影。此外 ,尚与个体差异 ,出生距CT扫描时间过短有关。
Collect 53 cases of clinical history of asphyxia and 8 cases without intrauterine asphyxia history, birth history of full-term newborns, clinical index and CT index control. In clinical and CT do not meet the newborn, CT index was more than clinical classification of 14 cases were mild neonatal hypoxic-ischemic encephalopathy (HIE), of which 41.2%. 38 cases of subarachnoid hemorrhage (SAH) were diagnosed by CT, of which 14 cases were normal dural sinusography and the false positive rate was 36.8%. CT classification was less than clinical classification in 8 cases, of which 4 cases were moderate and severe HIE. CT and clinical diagnosis of non-compliance is the main reason for lack of understanding of the normal neonatal images, including the physiological low density and high sagittal sinus of high density. In addition, still with individual differences, birth from the CT scan time is too short.