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Abstract #1264

Phase Analysis of Neonatal Cerebral Venous System by Susceptibility-Weighted Magnetic Resonance Imaging

Tetsu Niwa1, Noriko Aida2, Hiroshi Kawaguchi3, Takayuki Obata3, Ayako Shishikura2, Tomio Inoue4

1Kanagawa Children's Medical Center, Yokohama, Kanagawa, Japan; 2Kanagawa Children's Medical Center, Japan; 3National Institute of Radiological Science, Japan; 4Yokohama City University, Graduate School of Medicine, Japan

Susceptibility-weighted imaging (SWI) is a magnetic resonance (MR) imaging technique that is very sensitive for detecting intravascular venous deoxygenated blood, enables venography, and demontrates oxygen saturation. We retrospectively assessed phase value of the cortical and deep veins in 36 neonates without abnormal MR findings. In this study, phase value was higher in the deep vein than those in the cortical veins. We consider higher phase value in the deep veins may correlate with active metabolic and oxygen consumption area in neonates. The information provided by phase value on SWI may help understanding oxygen consumption pattern in neonates.