NHS rolls out AI decision tool to all stroke centres after pilot triples recovery rates

The NHS has equipped every stroke centre in England with an artificial intelligence decision‑support tool that, officials say, triples the rate of recovery and helps around half of patients avoid major disability.

NHS England said the software analyses brain scans of patients arriving with suspected stroke and identifies the severity of a blockage or bleed and the most appropriate treatment in about one minute. The faster analysis allows clinicians to offer time‑critical drugs or surgery more than an hour sooner than previously, the health service said.

NHS England’s internal analysis of hospitals that adopted the system early found the proportion of people regaining "functional independence" rose from 16 percent to 48 percent. The system has now been rolled out to all 107 designated stroke centres in England, officials told delegates on the final day of the world’s largest heart conference.

"This AI decision support technology is revolutionising how we help people who have been affected by a stroke," David Hargroves, national clinical director for stroke at NHS England, said during the conference. NHS England noted that roughly 80,000 people in England suffer a stroke each year and that speed of diagnosis and treatment is critical; the health service estimates a patient can lose around 2 million brain cells for each minute that passes after a stroke begins.

The tool is intended to support clinicians by rapidly flagging which patients are likely to benefit from immediate interventions such as thrombolytic drugs or endovascular thrombectomy, and which patients have haemorrhagic strokes that require different care. NHS officials said the technology provides an assessment within approximately 60 seconds of scan completion, enabling teams to make time‑sensitive treatment decisions sooner than with traditional workflows.

Hospitals that trialled the technology before the national rollout reported reduced door‑to‑treatment times and improved patient outcomes in routine practice, NHS England said. The health service did not provide detailed peer‑reviewed outcome data in the briefing but described the internal analysis as the basis for the national deployment.

Stroke is a leading cause of adult disability, and faster access to appropriate treatment is a key focus of stroke care pathways in the UK and internationally. The introduction of rapid imaging reads and decision support aims to reduce delays caused by radiology bottlenecks and to standardise assessments across centres, NHS England officials said.

Clinicians cautioned that decision‑support tools are intended to augment, not replace, specialist judgement. NHS England said the software is being used as an aid to qualified clinicians who make the final treatment decisions, and that training and governance arrangements have been put in place alongside the rollout.

The national deployment follows a period of evaluation in individual hospitals where multidisciplinary stroke teams integrated the software into existing protocols. NHS England said it will continue to monitor outcomes and safety across the network of stroke centres and that further analyses will be published to inform ongoing use.

Health officials described the rollout as part of a broader push to harness digital tools to improve acute care pathways. They said the technology was selected for national use after trials showed reductions in time to treatment and improvements in measures of recovery, and that its adoption is expected to relieve pressure on services by reducing long‑term disability from stroke.

The NHS announcement did not include detailed cost figures for the national programme or the names of the commercial technology suppliers involved. Officials said further information, including results from ongoing monitoring and evaluation, will be made available as the programme matures.