Prolonged hemiplegic migraine associated with unilateral hyperperfusion on perfusion weighted magnetic resonance imaging

A recently reported post-processing technique (factor analysis of dynamic studies FADS) can be applied to PWI to generate images representing arterial ("early") and venous ("late") contributions to signal intensity. 2 This report outlines the findings arising from the application of multimodal MRI techniques to a patient with prolonged hemiplegic migraine. [...]we show that the use of multimodal MR in a case of acute hemiparesis in a patient with HM was effective in excluding cerebral infarction.