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目的探讨超声弹性成像技术在早产儿脑白质损伤中的初步应用价值。方法应用带有超声弹性成像功能的超声仪经前囟观察缺血缺氧损伤后的颅脑结构,着重观察脑室周围白质的回声变化。结果常规超声显示脑损伤后脑室周围白质回声增强,超声弹性成像发现该病变部位组织硬度明显区别于周围正常脑组织,脑室周围病变回声增强区域显示为红绿色交加或以绿色为主(相对较软组织),而周围正常脑组织为蓝绿色交加或以蓝色为主(相对较硬组织),弹性成像可显示该部位质地较周围更软。弹性成像且能够显示白质软化和出血灶边界,与二维超声所观察到的片状强回声或高回声边界相符。结论常规颅脑超声结合弹性成像技术,能更灵敏、直观地评价脑白质损伤的程度,可以提高超声对脑白质损伤的诊断灵敏度和准确率,早期正确诊断对临床治疗、逆转病情具有重要作用。
Objective To investigate the preliminary value of ultrasound elastography in white matter damage of premature infants. Methods Ultrasound with ultrasound elastography was used to observe the structure of the brain after hypoxia-ischemia injury through the anterior fontanelle. The echogenic changes of periventricular white matter were observed. Results Conventional ultrasound showed enhanced white matter echogenicity in the periventricular area after ultrasonic injury. Ultrasound elastography revealed that the tissue hardness of the lesion was significantly different from that of normal brain tissue. The echogenic area around the periventricular showed red-green or green-color (relatively soft tissue ), While normal surrounding brain tissue was mainly cyan-colored or blue-colored (relatively hard tissue), and elastography showed that the area was softer in texture than the surrounding area. Elastic imaging and can show white matter softening and hemorrhage border, consistent with the observed two-dimensional echogenic echogenic or hyperechoic boundaries. Conclusion The conventional craniocerebral ultrasound combined with elastography can evaluate the sensitivity and accuracy of white matter damage more sensitively and intuitively. The correct diagnosis of early white matter plays an important role in clinical treatment and reversal of disease.