Cerebral arterial and venous flow-velocity measurements in post-haemorrhagic ventricular dilatation and hydrocephalus.
Simultaneous anterior cerebral artery (ACA) and internal cerebral vein (ICV) flow-velocities were measured in 18 babies with post-haemorrhagic ventricular dilatation (PHVD) and hydrocephalus (PHH). Compared with a control group matched for post-conceptional age, the resistance index of the ACA was increased. This was shown to occur at an early stage of PHVD in a longitudinal study of seven of the babies. There were no significant changes in ACA or ICV time-averaged velocities. Eight babies with PHH had ventricular taps on 18 occasions to relieve raised intracranial pressure. There was a significant decrease in the resistance index of the ACA, accompanied by an increase in the ACA time-averaged velocity, but no change in the ICV time-averaged velocity.
Quinn
M W
MW
University Department of Paediatrics and Child Health, Leeds General Infirmary.
Ando
Y
Y
Levene
M I
MI
D001783:Blood Flow Velocity / Q000502:physiology; D016022:Case-Control Studies; D002536:Cerebral Arteries / Q000000981:diagnostic imaging* / Q000503:physiopathology; D002543:Cerebral Hemorrhage / Q000000981:diagnostic imaging* / Q000503:physiopathology; D002550:Cerebral Veins / Q000000981:diagnostic imaging* / Q000503:physiopathology; D002552:Cerebral Ventricles / Q000000981:diagnostic imaging* / Q000503:physiopathology; D002557:Cerebrospinal Fluid Shunts; D003430:Cross-Sectional Studies; D004108:Dilatation, Pathologic / Q000000981:diagnostic imaging; D004453:Echoencephalography / Q000295:instrumentation*; D005500:Follow-Up Studies; D006801:Humans; D006849:Hydrocephalus / Q000000981:diagnostic imaging* / Q000503:physiopathology; D007091:Image Processing, Computer-Assisted / Q000295:instrumentation*; D007231:Infant, Newborn; D007235:Infant, Premature, Diseases / Q000000981:diagnostic imaging* / Q000503:physiopathology; D007427:Intracranial Pressure / Q000502:physiology; D008137:Longitudinal Studies; D011183:Postoperative Complications / Q000000981:diagnostic imaging / Q000503:physiopathology; D014655:Vascular Resistance / Q000502:physiology