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From the personal to the professional and the micro to the macro-economic, the pandemic has highlighted just how crucial the state of global health and the policies that underpin it are to our collective survival and prosperity. Perhaps lesser appreciated, but certainly no less significant, is just how big a part Artificial Intelligence has to play, says a leading expert in the field.

Weve had an unprecedented amount of sharing of data globally, of live daily updates on data across the board, whether it has to do with death rates or infection rates. In the UK, we had our live tracker, we have track-and-trace that also collected data. All of this is underpinning the work that was being done to fight Covid. It is also what is ultimately the foundation for artificial intelligence, says Aldo Faisal, Professor of AI and Neuroscience at the Departments of Computing and Bioengineering at Imperial College London.

Prof Faisal leads the Brain and Behaviour Lab, which uses and develops statistical AI techniques to analyse data and predict behaviour, as well as producing medical-related robotics. Last year he was awarded a five-year UK Research and Innovation Turing AI Fellowship to develop an "AI Clinician" that will help doctors make complex decisions and relieve pressure on the NHS.

Having spent years harnessing the power of AI to develop better health care, Covid-19 was certainly no exception and Prof Faisal redirected a large portion of his labs resources to the national effort at the outset of the pandemic.

Just last month he and a team of researchers revealed their work in using machine learning to predict which Covid-19 patients in intensive care units might get worse and not respond positively to being turned on to their stomachs a technique that is commonly used to improve oxygenation of the lungs.

This only happened because we look at the trajectories of patients on a daily basis, says Prof Faisal, who first studied in Germany, where he received a number of awards and distinctions, before continuing his education as a Junior Fellow at the University of Cambridge.

In collaboration with a digital healthcare company his lab ran a survey of Covid-19 symptoms worldwide with one million respondents which, though not yet peer-reviewed, has shown that standard Covid-19 symptoms, such as loss of taste and smell, are not consistent across countries.

Suddenly symptoms in Africa or India present themselves very differently from symptoms in Europe. Why is that important? Because we're always talking about asymptomatic transmission, and the challenges [involved], the German-born professor tells The National.

From lung scan imaging for preliminary detection to the rapid review of research and, of course, the worldwide dissemination of mortality figures, algorithms have been deployed far and wide to help better understand and combat the virus.

I've seen things advance in weeks, that would have taken probably a decade to happen. And the question is, how much of that legacy experience from a citizen's viewpoint is going to transform in the long term? What is acceptable? asks Prof Faisal, who is also the Founding Director of the 20 million ($28.3m) UKRI Centre for Doctoral Training in AI for Healthcare.

Privacy, data and bias remain the omnipresent issues trailing behind the proliferation of AI across sectors, but a public health emergency like Covid-19 tends for better or worse to quieten such resistance.

There is a massive shortage of doctors worldwide. What AI can do is address some of the unmet personnel needs

Nevertheless, ardent proponents of AI welcome the legislative safeguards and frameworks they say would help foster greater trust among the public, as well as increased collaboration among institutions.

Addressing an online forum of AI Healthcare experts earlier this year, the Conservative MP and former Minister of State, George Freeman, said governments had a difficult but important role to play in instilling excitement instead of fear into the public. The big challenge in this space is to create a trust framework where people out on the streets can have confidence that this big system for using massive computer power to find value in the healthcare system is working for them, not on them, said the founder of Reform for Resilience, an international initiative aimed at promoting strategic reform of health care.

Mr Freeman said the steady rise in the wellness and wearable technology in healthcare industries suggests people are increasingly willing to take responsibility for their health but needed better architecture to do so.

We need to set some global international protocols and standards for what is and is not legitimate good practice use of AI, he said at the online forum.

I think we need to frame AI within a UK system approach in which the public would have real trust that we're going to embed that properly in a system that will make the sacrifices of this last year mean that the next generation don't have to experience it.

Regardless of where the legislation is going, the increased integration of health care with personal digital technologies is unlikely to turn back. Utilising AI does not, however, mean dispensing with doctors and medical professionals, says Amr Nimer, a neurosurgeon at Imperial College NHS Trust and a colleague of Prof Faisal.

There is a massive shortage of doctors worldwide. What AI can do is address some of the unmet personnel needs. The idea behind the deployment of AI agents is not to replace doctors or healthcare professionals, but to help automate some of the tasks that can be done much more efficiently by machines, so that we as healthcare professionals can concentrate on actual patient care. AI will augment, rather than replace, healthcare professionals, Mr Nimer told The National.

Over the past year the Dubai-born neurosurgeon has been working with Prof Faisal in the Brain Behaviour Lab on a project to train surgeons using AI.

It's based on the principles of economy of movement and surgical efficacy. We use state-of-the art motion sensors to collect movement data from expert surgeons, and then utilise AI algorithms to answer the questions: what defines manual surgical expertise, or what makes an expert, an expert? What does behavioural data show us about the manual skills of surgical experts [versus] novices? Once we have an entirely data-driven objective definition of expertise in a particular procedure, we can use AI algorithms to help junior surgeons perform that procedure much more efficiently on models, rather than practising on patients first, Mr Nimer said.

Showing the wide applicability of AI, this research project shares similar research principles with that undertaken by Prof Faisals team last year with Formula E World Champion, Lucas di Grassi. Wearing a wireless electroencephalogram helmet to track his brain activity, the racing drivers eye and body movements were monitored under real-time extreme conditions. The first-time experiment aimed to better understand how an expert driver performs, so that more targeted and useful information can be given to self-driving cars.

After more than a year responding to the severities of Covid-19, the healthcare system is overwhelmingly strained. The long-term direct and indirect health effects of the virus are still revealing themselves, but initial assessments suggest a long road of continued care ahead and waiting times to treat other illnesses are now several years long. Healthcare facilities will need a huge injection of both human and financial capital, as well as the latest technology has to offer in order to cope.

The crisis precipitated a hastening of AIs foray into the medical sphere with an unprecedented sharing of data and collaboration across institutions. With medics facing ominous healthcare challenges for years to come, former sceptics may now be more willing to embrace tech that can lessen the burden. It remains to be seen, however, whether the government can provide the necessary regulatory framework to protect the interests of both the patient and the professional.

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How Artificial Intelligence has played a major role in fighting Covid - The National