Siedler D E, Mahony B S, Hoddick W K, Callen P W
J Ultrasound Med. 1985 Mar;4(3):109-12. doi: 10.7863/jum.1985.4.3.109.
Reflection artifacts may complicate the diagnosis of intracranial hemorrhage in preterm neonates. A linear focus of bright echoes in the region of the germinal matrix at or anterior to the caudothalamic grooves, often seen on parasagittal scans, may be mistaken for a germinal matrix hemorrhage but is actually a reflection of the ultrasound beam at the wall of the lateral ventricle. Cranial sonograms of 100 preterm infants were retrospectively analyzed and categorized with regard to presence and size of specular reflection. Eight cases demonstrated a bright echogenic focus; seven of these potentially could have been mistaken for hemorrhages.
反射伪像可能会使早产儿颅内出血的诊断复杂化。在矢状旁扫描中经常可见，在尾状丘脑沟或其前方的生发基质区域出现的线性明亮回声焦点，可能会被误认为是生发基质出血，但实际上是侧脑室壁处超声束的反射。对100例早产儿的头颅超声检查进行回顾性分析，并根据镜面反射的有无和大小进行分类。8例显示有明亮的回声焦点；其中7例可能被误诊为出血。
