The Factors Affecting Spinal Cord Morphology Of Axial Magnetic Resonance Imaging In Cervical Spondylotic Myeopathy

Objective:To investigate the factors affecting spinal cord morphology of axial magneticresonance imaging in cervical spondylotic myelopathy.Methods:A retrospective analysis of93cases of2011-2013years in our hospital, the patientsof cervical spondylotic myelopathy. C4/5is selected to be the research section,according to the morphology of spinal cord type classification, specific classificationcriteria: type I: normal morphology, were oval; type II: the diameter of the spinal cordslightly longer, anteroposterior diameter slightly shorter, a kind of triangle or cordate;type III: the diameter of the spinal cord were longer, anteroposterior diametersignificantly shorter, a kind of sausage shaped, crescent or irregular shape. Recordwhether there is oppression, oppression or in front of the rear adjacent segment ofoppression, and the above three factors according to certain standard corresponding isdivided into0-2grade, also recorded whether there is high signal on T2WI. The use ofspinal canal diameter were measured before and after the PACS system, before andafter the area of vertebral canal, spinal cord and spinal cord area size. After statisticalanalysis before and after parting with anterior compression, compression, the rearadjacent segment of spinal cord compression, cervical spondylosis MRI axial size,morphology of spinal cord after spinal cord area, spinal canal diameter, area ofvertebral canal and spinal cord correlation between high signal in T2WI.Results:Type0morphology of spinal cord anterior compression level accounted for85.7%,0behind the compression level accounted for100%, suggesting that the type I usually before and after the party without compression; morphology of spinal cord anteriorcompression of type II grade1accounted for66.7%,0behind the compression levelaccounted for92.8%, suggesting that the type II usually only from anteriorcompression of spinal cord anterior compression; type III grade2accounted for70%in2, posterior compression level accounted for53.3%, suggesting that type III usuallycomes before and after compression; moreover found adjacent segment compressioncan cause spinal form of type II and III type change. At the same time, before and afterthe morphology of spinal cord type III spinal cord diameter, before and after the spinalcord area, spinal canal diameter and area of vertebral canal was significantly less thanthe type I, II type, number and percentage of type III intramedullary high signal wassignificantly higher than that of type I, type II.Conclusion:1. Morphological change of spinal cord compression of the spinal cord is not onlyassociated with the front and rear, may be associated with adjacent segmentcompression.2. Morphological change of spinal cord can reflect spinal cord and spinal canal sizechange.