Objective:To evaluate the usefulness of fast FLAIR pulse sequence in the MRI of intraspinal canal disease.Methods:Forty-four patients with suspected intraspinal canal disease were imaged with fast FLAIR pulse sequence after routine T 1 and T 2 weighted imaging in a 0.5 T superconducting MR scaner.The parameters of FLAIR were TR/TI/TE=6000/1500~2000/90~120 ms.Results:There were 26 intraspinal extramedullary tumors,4 intramedullary tumors,11 myelitis,3 localized ischemic necrosis or malacia of spinal cord....