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Diving-related decompression illness is classified into 2 main categories: arterial gas embolism and decompression sickness. The latter is further divided into types 1 and 2, depending on the clinical presentation. MR imaging is currently the most accurate neuroimaging technique available for the detection of brain and spinal cord lesions in neurologic type 2 decompression sickness. Rapid bubble formation in tissues and the bloodstream during ascent is the basic pathophysiologic mechanism in decompression illness. These bubbles can damage the central nervous system through different mechanisms, namely arterial occlusion, venous obstruction, or in situ toxicity. Neuroimaging studies of decompression sickness have reported findings associated with each of these mechanisms: some typical results are summarized and illustrated in this article. We also review the limitations of previous work and make practical methodologic suggestions for future neuroimaging studies. |
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cerebral embolism
corpus callosum,lesion of
decompression sickness
diving
embolism,air
hyperbaric oxygen
hyperbaric treatment
MRI
MRI,abnormal
MRI,diffusion weighted
MRI,spinal cord
prognosis
review article
scuba diving
spinal cord,cervical
spinal cord,lesion of
treatment of neurologic disorder
white matter disease
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