He is the PI or CoPI of three ongoing multicentre/multinational randomised controlled trials in ischaemic and haemorrhagic stroke and is strand lead on NIHR programme Grant in stroke care.
He has published a number of systematic reviews in the field of Neurointervention and neurovascular imaging. He has lectured extensively nationally and internationally on neuroradiology and interventional research.
He represents the Royal College of Radiologists on the Intercollegiate Working Party in Stroke, which runs the National stroke audit and publishes the National Clinical Guideline for Stroke. He also represents Br Soc Neuroradiologists (BSNR) on the stroke service peer review programme and chaired the BSNR Standards subcommittee 2008-2014. In 2009 he was appointed Chair of Acute Clinical Studies Group of the UK Stroke Research Network, renewed until its end in 2015. He is a member of the HTA Interventional procedures panel 2015-2019. Chair of European Society of Minimally Invasive Neurotherapeutics (ESMINT) Guidelines Committee 2017-2019.