观察新生儿中枢神经系统感染颅脑超声声像图改变的特点。

选取69例中枢神经系统感染新生儿为研究对象，采用便携式索诺声M-turbo超声诊断仪经前囟门型颅脑超声检查，观察脓性脑膜炎、病毒性脑膜炎和结核性脑膜炎声像图改变特点及差异。

化脓性脑膜炎及结核性脑膜炎脑膜回声异常阳性率为92.7%和100.0%，高于病毒性脑膜炎的20.0%，脑室扩张阳性率均为100.0%，高于病毒性脑膜炎的55.0%，积液阳性率为63.4%和75.0%，高于病毒性脑膜炎的5.0%，硬膜下积液阳性率为26.8%和12.5%，低于病毒性脑膜炎的95.0%，差异均具有统计学意义（χ²= 39.031、25.358、21.058、29.087，P均<0.01）。

颅脑超声检查是新生儿中枢神经系统感染有效的诊断手段，对化脓性脑膜炎、结核性脑膜炎和病毒性脑膜炎影像学检查声像图改变较为清晰，诊断准确、方法简便、无创伤，是新生儿中枢神经系统感染辅助诊断及动态观察的有效手段。

To investigate the imaging characteristics of the brain ultrasound examination for cases with neonatal central nervous system infection.

Total of 69 cases with neonatal infection of the central nervous system were selected, the portable sonosite M-turbo ultrasonic diagnostic instrument was applied through anteriorfontanelle craniocerebral ultrasound. Changes of the characteristics and the differences of the imaging features of purulent meningitis, viral meningitis and tuberculous meningitis were analyzed, respectively.

The positive rates of abnormal meningeal echo in purulent meningitis and tuberculous meningitis were 92.7% and 100%, which were higher than that of 20% in viral meningitis; ventricular dilatation positive rate was 100%, which was higher than that of 55% in viral meningitis; the positive rates were 63.4% and 75%, which was higher than that of 5% in viral meningitis, subdural effusion positive rates were 26.8% and 12.5%, which were lower than that of 95% in viral meningitis, all with significant differences (χ² = 39.031, 25.358, 21.058, 29.087; P all < 0.01).

Brain ultrasound examination was an effective diagnostic method of central nervous system infection, imaging changes in the imaging examination of purulent meningitis, tuberculous meningitis and viral meningitis were clear, the diagnosis was accurate, which was simple and non-invasive, and an effective means to assist the diagnosis and dynamic observation of neonatal central nervous system infection.