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  • Title: Magnetic resonance imaging of lumbar disc herniation. Comparison with myelography.
    Author: Hashimoto K, Akahori O, Kitano K, Nakajima K, Higashihara T, Kumasaka Y.
    Journal: Spine (Phila Pa 1976); 1990 Nov; 15(11):1166-9. PubMed ID: 2267612.
    Abstract:
    Fifty-three patients with surgically confirmed lumbar disc herniation at 55 levels were studied retrospectively to compare the diagnostic accuracy of high-field strength surface coil magnetic resonance imaging (MRI) with that of myelography. Disc herniation was classified into three groups according to MRI findings, namely, unilateral single-disc herniation, central single-disc herniation, and multilevel disc herniation. Magnetic resonance imaging diagnosis of unilateral single-disc herniation was extremely reliable, so myelography was considered to be unnecessary. Conversely, MRI findings of central single-disc herniation and multilevel disc herniation were less definite, in that myelography was necessary in locating the disc causing symptoms.
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