The Neuroradiographic Diagnosis of Lumbar Disc Herniation. A comparison of Magnetic Resonance Imaging, Myelogram and CT-Myelography.

概要

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In a comparison of Myelogram and sagittal MRI, the disc herniation's image of MRI was seen more largely. At 1988-1990, lumbar disc herniations were diagnosed on the 20 persons and intervertebral disc by posterior lumbar opration. In these, a comparison rate of dural sac by disc herniation was calculated at Myelogram, CTM, sagittal MRI and axial MRI. And then, statistical testing was performed using analysis of variance with them. Differences observed between the values of Myelogram and sagittal MRI, or CTM and axial MRI were not statistically significant.But if the rates were calculated on not only disc herniation and proximal dural sac but also disc her-niation and distal dural sac, the differences would be observed between the values of Myelogram and sagittal MRI. The disc herniation's image of the sagittal MRI would be seen more largely than those of the Myelogram at L4/5 and L5/S1.