Now a research team at Nottingham has found a way to use clinical MRI to distinguish between MS lesions and other brain white spots which are found in MS. The study is published in the Multiple Sclerosis Journal .

Multiple sclerosis (MS) is a neurological condition which affects around 100,000 people in the UK. It is notoriously difficult to diagnose as it has many symptoms but not all sufferers experience all of them and the disease can progress at different rates. MRI scans have been used as a diagnostic tool to detect white matter lesions in the brain but these are not always an indicator of the disease.

A new way of using MRI scanners to look for evidence of multiple sclerosis in the brain has been successfully tested by researchers at The University of Nottingham and Nottingham University Hospitals NHS Trust .

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Translational impact

They have used a clinical MRI scanner of the type all neuroscience centres have to carry out a special type of scan called a T2-weighted imaging process which is able to reveal lesions in the brain’s white matter that are centred on a vein — a known indicator of MS.

Leading the work, Dr Nikos Evangelou, said: “We already knew that large research MRI scanners could detect the proportion of lesions with a vein in the brain’s white matter, but these scanners are not clinically available. So we wanted to find out whether a single brain scan in an NHS hospital scanner could also be effective in distinguishing between patients known to have MS and patients known to have non-MS brain lesions. We are excited to reveal that our results show that clinical application of this technique could supplement existing diagnostic methods for MS.”

Blinded trial

A total of 40 patients were recruited from the neurology outpatients’ department of Nottingham University Hospitals NHS Trust. Initially a test cohort of 10 patients with MS and 10 patients with non-MS white brain matter lesions were scanned. Anonymised scans were analysed blinded to clinical data and simple diagnostic rules were devised. The same rules were applied to a validation cohort of 20 patients (13 with MS and 7 with other lesions) by a blinded observer.

Within the test cohort, all patients with MS had central veins in more than 45 per cent of brain lesions, while the rest had central veins visible in less than 45 per cent of lesions. Then, by applying the same diagnostic rules to the second cohort, all the remaining patients were correctly categorised into MS or non-MS, by the blinded observer, taking less than two minutes per scan.

Significant results

The new study is significant because currently among patients referred to MS treatment centres with suspected MS, fewer than 50 per cent are found to have it. This shows that diagnosing MS in a significant minority of cases can be challenging.

The Nottingham University team has now started a new study examining patients with real uncertainty about the diagnosis and aim to extend the study in other UK towns so more patients can participate in this important research. It is possible that in less than two years we will know if this new test is accurate as it appears to be. In that case, the way we will be diagnosing MS will probably be quicker and more reliable. The Nottingham team has already presented their data in the US and a similar US based study is planned based on the Nottingham results.

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Notes to editors: The University of Nottingham has 43,000 students and is ‘the nearest Britain has to a truly global university, with a “distinct” approach to internationalisation, which rests on those full-scale campuses in China and Malaysia, as well as a large presence in its home city.’ (Times Good University Guide 2016). It is also one of the most popular universities in the UK among graduate employers and the winner of ‘Outstanding Support for Early Career Researchers’ at the Times Higher Education Awards 2015. It is ranked in the world’s top 75 by the QS World University Rankings 2015/16, and 8th in the UK by research power according to the Research Excellence Framework 2014. It has been voted the world’s greenest campus for three years running, according to Greenmetrics Ranking of World Universities.

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