Advanced neuroimaging of carbon monoxide poisoning
2017
Carbon monoxide (CO) inhalation is nowadays the most common cause of fatal poisoning worldwide. CO binds to haemoglobin 230–270 times more avidly than oxygen, thus leading to formation of carboxyhaemoglobin with subsequent reduction of tissue oxygenation. Brain is mainly affected due to its high oxygen requirement. Up to two-thirds of patients who survive the acute phase of this pathology present a delayed leukoencephalopathy, usually in a period ranging from two to 40 days. White matter damage closely relates to long-term prognosis of these patients. On the other hand CO seems to play a fundamental role as a possible neuro-protective agent in ischaemic stroke. Diagnostic imaging, with computed tomography and magnetic resonance imaging, especially magnetic resonance spectroscopy, is very useful to depict the presence and extension of this pathology, in both acute and late phase. Nevertheless, a correlation of imaging studies with clinical history and laboratory data is fundamental to perform the correct d...
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