IRVINE, Calif., Dec. 17 /PRNewswire-FirstCall/ -- Masimo (Nasdaq: MASI), the inventor of Pulse CO-Oximetry(TM) and Measure-Through Motion and Low Perfusion pulse oximetry, today announced that new research findings, published in the November 2009 issue of the Journal of Perinatology, show that Masimo perfusion index (PI) accurately predicts low superior vena cava flow (SVC) in preterm, very-low-birth-weight infants--representing a promising method for continuous and noninvasive monitoring of systemic blood flow.(1)