Abstract
Three cases of anterior spinal artery syndrome are presented. They included one man and two women, the age at onset of the symptom were 51, 47 and 51 years. The clinical course, neurological status, and MR imaging findings were studied from the onset to the chronic phase. One women showed Frankel A palsy throughout her clinical course. The other woman recovered from B to C and the man recovered from C to D. Dissociated sensory loss occurred in all cases. A linear high signal intensity area on T2 images was observed in all cases, and this area become more clearly defined in the anterior parts of spinal cord in the chronic phase. T1 images showed no signal change in two cases and a high signal area in one case. The region of the spinal cord which showed acute signal changes become atrophic on T1 images in the chronic phase.
