摘要
目的总结分析早产儿头部正常CT影像学表现，提高与新生儿常见的脑部疾病的CT鉴别诊断的能力。方法收集100例早产儿的临床及头部正常CT影像学资料，对CT表现进行回顾性分析。结果胎龄在27-31周22例（22／100），胎龄在32～36周71例（71／100），胎龄在37周7例（7／100），100例均表现脑白质密度减低，CT值25-30Hu，脑皮质层簿，灰白质对比增强，脑沟少且浅，脑回大，胎龄越小，上述程度越重；合并颅内出血37例，脑室内和脑室旁出血有19例，蛛网膜下腔出血21例。结论充分认识早产儿正常颅脑CT表现。可有效提高判断早产儿颅脑CT正常或异常的准确率，减少或避免漏诊、误诊。
Objective Summarize the normal head CT image to improve the capacity of differential diagnosis in preterm children. Methods One hundred cases of CT clinical and radiological data were collected and analyzed ret- rospectively. Results Of all cases, there were 22 cases with gestational age of 27 to 31 weeks （22/100）, 71 cases of 32 to 36 weeks （71/100）, 7 cases of 37 weeks （7/100）. With CT value of 25-30 Hu, the images showed that white mat- ter density reduced but cerebral cortex thinned and enhanced when be contrasted. The smaller the gestational age, the more severe in sulci and gyri. Thirty-seven cases were with complication of intracranial hemorrhage, 19 cases were with intraventricular hemorrhage and intraventricular hemorrhage,and 21 cases with subarachnoid hemorrhage. Conclusion Understanding normal brain CT manifestations can improve the judgment of normal or abnormal brain CT and reduce or avoid misdiagnosis.
出处
《实用医学影像杂志》
2015年第5期419-421,共3页
Journal of Practical Medical Imaging
