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.