Radionuclide cisternography in the preterm neonate.

A technique is presented for the bedside performance of radionuclide cisternography in the preterm neonate. Using a portable gamma camera, with a low energy, converging collimator, high quality diagnostic images were obtained in 31 infants, following the lumbar subarachnoid injection of 100 micro Ci In-111 DTPA. The technique is safe, and provides valuable information about CSF dynamics unavailable by any other method.