Striated long T1 is seen in the spinal canal, and T2 enhancement shows no obvious abnormality, which is the description of MRI imaging, and this condition may be caused by artifacts, spinal cord degeneration, or vertebral canal occupation. 1. Artifacts: This refers to image distortion, blurring or the appearance of images unrelated to the image due to various factors in magnetic resonance imaging. Follow-up examinations are recommended to avoid misdiagnosis or omission. 2. Spinal cord degeneration: often caused by degenerative changes in the spine, such as bulging or herniated discs, which can cause narrowing of the adjacent spinal canal and, in severe cases, degeneration of the adjacent spinal cord. 3. Vertebral occupation: according to the location of occurrence can be divided into intramedullary, extramedullary subdural and epidural three. Intramedullary lesions commonly include dilated central canal of the spinal cord, astrocytoma, and ventricular meningioma. Extramedullary subdural occupations commonly include nerve sheath tumors and spinal meningiomas. Epidural occupations commonly include metastases, neurogenic tumors and so on. It is recommended to find a professional doctor to read the film for diagnosis, to avoid the omission of important signs, and at the same time, to carry out standardized treatment under the guidance of the doctor.