Long waits for NHS diagnostic tests in England are being driven by a shortage of radiographers, not by a failure to squeeze enough work out of existing staff. That is the central argument made by Richard Evans, chief executive of the Society and College of Radiographers, in a published letter responding to claims that the service should make better use of current capacity.

Evans was answering comments cited in an earlier report on record diagnostic waiting lists, in which Marlen Suller of Magentus said the NHS needed to “make better use of existing capacity, test patients faster, give them clearer information and use financial incentives to drive improvement.” Evans said that framing lands badly with the professionals who actually perform imaging tests, because it implies diagnostic radiographers are not already working hard enough, or might do more if paid to stretch even further.

Key Facts

  • Richard Evans, CEO of the Society and College of Radiographers, published the letter on June 14, 2026.
  • The letter responds to a June 7 article about record NHS diagnostic test waiting lists in England.
  • Evans challenged comments attributed to Marlen Suller of Magentus.
  • The dispute centers on diagnostic radiographers, the NHS staff who carry out imaging tests.
  • Evans’ core claim is that without investment in more radiographers, waiting lists will keep rising.

That matters because the diagnostic queue is not an abstract management problem. It is the bottleneck before cancer treatment, before surgical planning, before a patient with new neurological symptoms gets an answer. If scans are delayed, almost everything behind them is delayed too.

And Evans’ point is blunt. Without investment in more radiographers, he said, NHS waiting lists will continue to rise “inexorably.”

The argument is about workforce, not software

There is a familiar NHS habit of treating capacity as a scheduling puzzle. Shift the appointments. Improve the messaging. Add dashboards. Pay incentives. Some of that helps at the margins. It does not create trained staff out of thin air.

Diagnostic radiographers are the clinicians who perform imaging examinations such as X-rays, MRI scans, CT scans and mammography. Their work sits inside a chain that also depends on scanners, reporting clinicians, support staff and physical space. But no scanning suite runs itself, and the idea that long waits can be solved mainly through sharper management starts to sound a bit too tidy.

Without investment in more radiographers, the backlog won’t be fixed by asking the same workforce to run faster.

Here’s the thing: efficiency claims in healthcare often carry an unspoken accusation. If only teams organised themselves better, if only staff moved patients through more quickly, if only incentives were aligned. Sometimes that is true. Often, in stretched services, it is a polite way of saying there are too few people doing too much work.

Evans’ letter does not present new research, and readers should treat it as what it is: an intervention from the head of a professional body, not a peer-reviewed workforce study. But the logic is sound, and it fits what health services researchers have shown for years about staffing constraints across the NHS. A letter can sharpen a public argument. It cannot, by itself, settle it.

What the letter does — and doesn’t — prove

The published exchange rests on a simple factual base. An earlier article reported record numbers of people waiting for diagnostic tests in England. Evans then disputed the implication that the answer lies chiefly in pushing current staff and systems harder. On that narrow point, he is making a workforce argument, not offering a quantified model of how many radiographers are missing or what level of investment would reverse the trend.

That limit matters. We do not get staffing figures in the letter, no regional breakdown, no vacancy data, no direct comparison of scanner utilisation by trust. So it would be wrong to pretend the correspondence proves exactly how much of the waiting-list problem is due to workforce shortages versus equipment, estate limits or reporting delays. Still, it identifies the variable NHS leaders too often prefer to discuss last, because it is the most expensive one.

And this is where medical reporting needs some discipline. A bottleneck in diagnostics can have several causes at once. But when the workforce carrying out the tests says the service is underpowered, dismissing that as resistance to reform is lazy analysis.

Readers who follow wider health policy will recognize the pattern. Public systems under strain are regularly told to extract more from current staff before they are offered enough new staff. The same story appears in sexual health, vaccination and primary care. BreakWire has covered how resource cuts can ripple through prevention in UNAIDS warns cuts raise risk of HIV resurgence, and how staffing and access pressures shape vaccine delivery in England offers MenB shots to school leavers. Diagnostics isn’t identical, but the pressure logic is familiar.

Why this matters beyond the imaging department

Delayed diagnostics are not just an operational headache. They alter clinical risk. An MRI delayed by months can postpone a multiple sclerosis workup. A CT pushed back can stall cancer staging. Even when the eventual result is reassuring, the wait itself has a cost in anxiety, repeated GP visits and, sometimes, emergency deterioration that might have been avoided.

The NHS has long wrestled with backlogs in elective care and testing, and diagnostics has become one of the most sensitive pressure points. Official NHS and government reporting has repeatedly tied recovery plans to both equipment expansion and workforce growth, because one without the other is half a strategy. The public record on that is clear in material from the NHS and the Department of Health and Social Care. The professional role itself is set out by the radiographer profession, though Wikipedia is no substitute for workforce planning.

There is also a training lag that policymakers tend to talk around. You cannot declare a staffing crisis in June and solve it by August. Radiographers require formal education, supervised clinical training and registration pathways. That makes short-term rescue plans heavily dependent on retention, overtime and temporary reallocation. Useful, yes. Sustainable, no.

But there is a cleaner sentence here: no health system clears a diagnostics backlog by insulting the people running the scanners.

For patients, the practical question is whether the NHS response treats long waits as a demand-management issue or a capacity issue. If it is mostly the former, expect more talk about smarter booking, triage and productivity tools. If it is the latter, the conversation gets more expensive fast: university places, supervised placements, retention packages, equipment, reporting support, and time. Real time.

That changed when waiting lists became impossible to wave away as temporary turbulence. England’s diagnostic backlog has become a public test of whether ministers and NHS managers are willing to fund the staff base that modern medicine actually rests on. There is no shortcut around that, however glossy the software pitch.

For context, diagnostic imaging sits at the center of care pathways the public often notices only when they fail. A delayed scan can also feed later pressure on hospital admissions and specialty clinics, much as other access constraints show up in unexpected places, including cost barriers like those described in Medical conditions send travel insurance quotes soaring. Different system, same lesson: when health needs meet thin capacity, the patient pays first.

Anyone looking for a randomized trial here will be disappointed. This is not that kind of evidence. It is a workforce warning from the leader of the professional body representing radiographers, prompted by a public claim about efficiency and incentives. Peer review is not the standard for a letter page. But common sense and service reality still count.

The next thing to watch is whether NHS England or the Department of Health and Social Care answers the workforce point directly in upcoming diagnostics and waiting-list updates, rather than returning to the safer language of productivity alone. If they don’t, Evans’ complaint will stand: the service is being asked to move faster without being given enough people to move it.