PERITRIGONAL ECHOGENIC BLUSH ON CRANIAL SONOGRAPHY - PATHOLOGICAL CORRELATES
PERITRIGONAL ECHOGENIC BLUSH ON CRANIAL SONOGRAPHY - PATHOLOGICAL CORRELATES
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DOI：
10.2214/ajr.146.5.1067
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发表时间：
1986-05-01
影响因子：
5
通讯作者：
TEELE, RL
中科院分区：
文献类型：
--
作者：
DIPIETRO, MA;BRODY, BA;TEELE, RL
[人类]新生儿的头颅超声几乎总是在旁切面上显示心室三角区的后部和上级处的高回声“红晕”。这种正常的回声增强类似于精细的笔触。这可能是由许多平行纤维的界面引起的，这些纤维几乎垂直于穿过前囟的超声束的纵轴。通过后囟获得的超声图像上没有看到相同的回声，因为在该角度下，超声束的长轴和纤维束几乎平行。28例尸检声像图与病理对照显示，异常、致密、球形、粗、边缘区回声为脑室周围白质软化伴出血所致。例非出血性脑室周围白质软化症或围产期端脑白质脑病表现为正常的边缘区强回声。
Cranial sonography in [human] neonates almost always reveals a hyperechoic "blush" just posterior and superior to the ventricular trigones on parasagittal views. This normal increased echogenicity resembles fine brush strokes. It is probably caused by the interface of numerous parallel fibers that are nearly perpendicular to the longitudinal axis of a sonographic beam passing through the anterior fontanelle. The same echogenicity is not seen on sonograms obtained through the posterior fontanelle because with that angulation the long axis of the sonographic beam and the fiber tracts are nearly parallel. Sonographic-pathologic correlation in 28 autopsy cases showed that abnormal, dense, globular, coarse,peritrigonal echogenicity was due to periventricular leukomalacia with hemorrhage. Cases with nonhemorrhagic periventricular leukomalacia or perinatal telencephalic leukoencephalopathy demonstrated the normal peritrigonal hyperechogenicity.