Rosenthal S J, Filly R A, Callen P W, Sommer F G
Radiology. 1979 Apr;131(1):195-7. doi: 10.1148/131.1.195.
A sonolucent band (pseudoascites) was retrospectively identified beneath the fetal abdominal wall in 39.7% of 141 normal obstetrical sonograms. In 12.6% of the examinations, the band was wide enough to be potentially confused with actual ascites. Pseudoascites was unrelated to fetal age or position, placental location, or equipment used. It was not reliably present on sequential examinations. The origin of this artifact remains unclear.
在141份正常产科超声检查图像中，39.7%的胎儿腹壁下方可回顾性识别出一条无回声带（假性腹水）。在12.6%的检查中，该无回声带宽度足以可能与实际腹水相混淆。假性腹水与胎儿年龄、位置、胎盘位置或所用设备无关。在连续检查中它并非始终出现。这种伪像的起源尚不清楚。
