Cakmakci Handan, Gulcu Aytac, Zenger M Noyan
Department of Radiology, Dokuz Eylül University Medical School, Inciralti, 35600 Izmir, Turkey.
J Clin Ultrasound. 2003 Oct;31(8):437-9. doi: 10.1002/jcu.10194.
During sonographic examination, a mirror-like interface can scatter the ultrasound beam, producing mirror-image artifacts. We describe a case of bilateral parietal cephalhematoma in the parietal region of a 2-day-old neonate that mimicked bilateral epidural hematoma on routine sonographic examination. Forceps had been used during delivery, and the neonate had been experiencing episodes of apnea since birth. Gray-scale coronal sonograms showed anechoic structures resembling epidural hematomas in the left and right parietal regions. However, color and power Doppler sonography showed normal vascular findings, thus permitting identification of the mirror-image artifact.
在超声检查过程中，镜面样界面可使超声束发生散射，产生镜像伪像。我们描述了一例2日龄新生儿顶叶区域双侧顶骨头皮血肿的病例，该病例在常规超声检查中酷似双侧硬膜外血肿。分娩时使用了产钳，自出生以来该新生儿一直有呼吸暂停发作。灰阶冠状面超声检查显示左右顶叶区域有类似硬膜外血肿的无回声结构。然而，彩色和能量多普勒超声检查显示血管情况正常，从而得以识别镜像伪像。
