2014•Central Plains Medical JournalRequires access

MRI diagnostic value on cerebral infarction Wallerian degeneration in pyramidal tract

曾仲刚, 李雪霞, 钱会绒, 谭琦瑄, 胡宗继

Abstract

Objective To analyze the MR findings of Wallerian degeneration in pyramidal tract,so as to improve the diagnosis accuracy. Methods Twenty cases of Wallerian degeneration in pyramidal tract were analyzed by MR,with T1WI,T2WI,FLAIR and DWI. Results A total of 20 cases of Wrallerian degeneration in pyramidal tract showed unilateral pulmonary cerebral infarction cerebral hemisphere,and with secondary findings,including cerebral peduncle and pons atrophy（7 cases）,or the long T1/T2 signal and high signal in FLAIR along the pyramidal tract. Conclusions MRI can show the morphological changes from neurons to axons and myelin sheath in Wallerian degeneration correctly,and it is valuable in the diagnosis of Wallerian degeneration in pyramidal tract. Key words: Cerebral infarction; Pyramidal tract; Wallerian degeneration; MRI

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Key concepts: Wallerian degeneration, Pyramidal tracts, Cerebral peduncle, Medicine, Cerebral infarction, Degeneration (medical), Fluid-attenuated inversion recovery, Pathology