Medical Physics and Biomedical Engineering


Jem Hebden

Jem Hebden photo

Prof. Jem Hebden

Prof. Jem Hebden is Director of the UCL Biomedical Optics Research Laboratory and was Head of the Department of Medical Physics & Biomedical Engineering during 2008-2019. His research has largely concerned the development of systems for diffuse optical tomography (DOT), and he has pioneered the development of time-domain techniques in particular. Applications of the technology have focussed on imaging of the newborn infant brain, and especially the assessment of hypoxic ischemic encephalopathy and perinatal arterial ischaemic stroke. His team was responsible for generating the first whole-brain functional images of newborn infants using optical techniques, and the first full-scalp maps of cortical haemodynamic changes during seizures. Recently, Jem has been exploring the potential of a new diagnostic technique he calls wavelength-modulated near-infrared spectroscopy (WM-NIRS) which may have the potential to provide measurements of absolute concentrations of tissue chromophores while being insensitive to the variable and unknown coupling efficiency of light into and out of the skin surface.

IRIS profile: https://iris.ucl.ac.uk/iris/browse/profile?upi=JCHEB81