A portable neuro attack monitoring device is described. The neuro attack monitoring device combined with Coherent Hemodynamic Spectroscopy CHS algorithm offers a unique opportunity to directly resolve blood flow velocity measurements and for the first time apply NIRS+CHS technique for the detection of ischemic strokes and TIA. The device comprises a central hub configured for placement on a central part of a patient's head and a plurality of spokes connected to the central hub and configured for placement on the patient's head over a specific portion of the patient's brain. Each spoke can comprise one or more pairs of light emitting sources and at least one light detector, and the light emitting sources can be configured to inject light into the patient's head, at two or more different wavelengths, over a predetermined period of time.