Multi-Frequency Electrical Impedance Tomography Data Collected From Stroke Paitents


Electrical Impedance Tomography (EIT) could be used as a rapid and non-invasive technique to image/diagnose ischaemic or haemorrhagic stroke. However, there are currently no suitable imaging/classification methods which which can be applied to human stroke data. In part this is due to the complexity of the problem itself, but it is also affected by a lack of available data on which to evaluate different techniques. Multi-frequency EIT data (alongside MRI/CT) has been collected on 23 stroke patients, and 10 healthy volunteers, as part of a clinical trial in collaboration with the Hyper Acute Stroke Unit (HASU) at University College London Hospital (UCLH). Data was collected at 17 frequencies between 5Hz and 2kHz, with 31 current injections, yielding 930 measurements at each frequency. The raw data, collected simultaneous on all channel using an EEG amplifier sampling at 16kHz, is also made available. Bit more maybe