If the hemorrhage progresses to hydrocephalus, additional signs are as follows:
Ultrasonography is a noninvasive, low-cost, and easily available examination in most neonatal intensive care units that can be done at the bedside.
In recent years MRI has been increasingly used to evaluate infants with IVH. Although it is difficult to transfer a critically ill preterm infant to the MR suite and maintain correct temperature and it is difficult for the infant to endure the examination, which lasts a long time, valuable information can be extracted. The exact condition of periventricular white matter can be clarified.
Accelerated head growth and large ventricles on scanning: Abnormally fast head growth will typically trigger scanning, and the imaging will show enlarged ventricles as would be expected with developing hydrocephalus.