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Conventional metrizamide myelography (MM) and computed tomographic metrizamide myelography (CTMM) in scoliosis. A comparative study.

H. Pettersson, Derek C. Harwood-Nash, C R Fitz, H S Chuang, Edward A. Armstrong

Abstract

A retrospective examination was performed to assess the accuracy of metrizamide myelography (MM) and computed tomographic metrizamide myelography (CTMM) in scoliosis. Of 81 consecutive scoliotic children studied by myelography, 30 had only MM while the remaining 51 had CTMM immediately afterward. CTMM added essential diagnostic information in 13 cases of dysraphism and 4 cases of idiopathic scoliosis; in the remaining cases, both methods gave the same information. The authors conclude that in patients with severe scoliosis, dysraphism, and scoliosis with localized neurological disturbances, CTMM should always be added to MM or be the only examination; while in idiopathic scoliosis with vague neurological disturbances a survey of the entire spine is essential, preferably with MM.

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Key concepts: Metrizamide, Myelography, Medicine, Scoliosis, Computed tomographic, Radiology, Nuclear medicine, Surgery