High-resolution real-time ultrasonography of neonatal kidneys.

A high-resolution real-time ultrasound system was used to evaluate 43 neonates who had problems referable to the kidney. In addition to a review of normal anatomic features portrayed by this instrument, a variety of pathologic states are illustrated. The system offers the dual advantages of superior spatial resolution and rapid survey capability when compared with traditional articulated-arm contact scanners. As with all sonographic investigations, functional immaturity or depressed organ function is no hindrance to obtaining diagnostic examinations.