The use bowel ultrasound has yet to be adopted in the setting of suspicion for NEC at our institution. This is primarily due to the lack of expertise of the ultrasound technologists, radiologists and clinicians. With literature dating back to 2005 supporting the use of bowel ultrasound in diagnosis of severity of NEC, a high volume of CHD patients at our institution as well as new radiologists trained in bowel ultrasound, we would like to see if a regimen involving combined ultrasound and radiograph screening for NEC would make a difference in clinical outcomes (morbidity, mortality, and length of stay (LOS)) compared with radiograph screening alone.