[Quantification of blood flow using MR imaging with pre-saturation band].
A velocity profile was obtained by magnetic resonance (MR) imaging with a pre-saturation band (PSB) and automatically analyzed using a personal computer with the data transferred through the picture archiving communication system (PACS). A phantom study showed a good correlation of the measured flow rate to the actual volumetric flow rate (R¿2 = .984; MR rate = 0.11 + 0.90 x actual rate ml/min). Images were also obtained in 11 healthy fasting male volunteers during a 16-sec breath-hold. The average portal blood flow of these subjects was 16.2 + 5.0 mil/min/kg body weight. Quantitative MR imaging with PSB is a practical and noninvasive technique for measuring volumetric flow rate in the portal venous system.
Kishimoto
R
R
Department of Radiology, School of Medicine, Hokkaido University.
D000328:Adult; D001775:Blood Circulation; D001783:Blood Flow Velocity; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008102:Liver Circulation; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D019047:Phantoms, Imaging; D011169:Portal Vein / Q000502:physiology