Ultrasonically guided transabdominal encephalocentesis.

Transabdominal craniocentesis for the decompression of an advanced hydrocephalic fetal skull was performed under high-speed, sector scanning ultrasonic guidance. This technique can be used to facilitate delivery of a hydrocephalic fetal skull via the vaginal or abdominal route. The ability to monitor internal landmarks while advancing the needle is a decided advantage over the fluoroscopic technique.