The pulmonary Doppler flow pattern of ESN appears to be a promising noninvasive sign observed frequently in patients with MPE or SMPE.The EPIQ System was used successfully for echocardiography examinations in accordance with recommendations of the American Society of Echocardiography.Left atrial 2DSTE analysis is feasible in preterm infants and provides detailed information on atrium mechanics.The EPIQ System was used successfully to obtain ultrasound images through the fontanelle for total brain volume (TBV) estimation.