Diagnosis of cerebral arteriovenous malformation by colour Doppler examination.

A newborn presented in congestive cardiac failure, and colour Doppler ultrasonography confirmed a large aneurysm of the vein of Galen. The two-dimensional cranial ultrasound appearance was not diagnostic but colour Doppler examination highlighted the marked vascular abnormalities. The colour Doppler appearances were dramatically altered following coil embolisation of the vein of Galen. Colour Doppler examination is the technique of choice for diagnosis and follow-up of this unusual condition.