Biomedical subjects
Publications and source records attributed to P N Kitchener.
The value of M.R.I. in diagnosing spinal disorders has been tested in a series of 100 patients. C.T., myelography, discography and the operative findings are compared with the M.R.I. findings. The results indicate that M.R.I. is a valuable diagnostic investigation.
A retrospective study on the value of magnetic resonance imaging (MRI) in replacing contrast studies of the lumbar spine has been undertaken. Studying pre- and postoperative conditions, the authors attempted to answer the question, Will MRI replace myelography? In this retrospective study, comparison is made in 20 patients between MRI and myelography and with 12 intra-operative findings. The overall impression was that MRI is equally sensitive as the invasive myelogram in diagnosing both protruded lumbar discs and postoperative fibrosis. The practical conclusion was an almost complete abandonment of myelography.
An aggressive and recurrent pigmented villonodular synovitis of the knee occurred in a 47-year-old man. Magnetic resonance imaging was an excellent noninvasive diagnostic aid that completely outlined the extent of the synovitis and correlated well with surgical findings.
Magnetic resonance imaging is a new diagnostic procedure which may be applied to diseases of the lumbar spine and its contents. The technique is non-invasive and does not use ionizing radiation; it also has better contrast resolution than do other methods that are available. This article explores the application of the technique to postoperative conditions of the lumbar spine in relation to problems such as discitis, residual disc material, fibrosis, the size of the surrounding fatty tissue, and the shape of the neural contents.
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