Guess what? Today is one of my somedays! Or, I should say, today promises to be one of my somedays (there’s the cautious vein running through my optimism).

Today the FDA announced that they are hosting a public workshop on MRI Safety! Faced with staggering growth in MRI accidents and a diaspora of state, accreditation, professional and regulation organizations (who either can’t or won’t acknowledge the role that they each could have played in preventing the dramatic increase in accidents), the FDA is assembling a public workshop not unlike the one that fostered unprecedented cooperation among industry, providers and regulatory bodies to address ionizing radiation exposure concerns in ionizing medical imaging.

Like the ionizing predecessor, the challenge for the MRI safety workshop will be twofold… first, getting stakeholders (who disavow being stakeholders with a responsibility) to work together will be like herding cats. Fortunately, there are a few of us crazies [ahem] zealots, er enthusiasts who won’t forsake this opportunity and will help marshal the kitten rodeo. Second, and more critical, will be the commitment to actually doing something!

“Try harder” or “Improve tech education” or “Develop a policy” have all been tried to death! The ‘we promise we’ll do better in the future’ line, without specific, measurable criteria, has been the staple of MRI safety improvement efforts over the course of time in which we’ve seen the rates of MRI accidents grow to five times what they were just a few years ago. The promise to ‘do better’ is wholly inadequate. The promise to ‘measure up’ to an explicit standard is what we need.

Alarming Growth In MRI Accidents

This planned meeting – or more specifically, the progress that it represents – is long overdue, as is this contribution to this forum.

If you would like to participate in this upcoming FDA meeting, scheduled for October 25th – 26th, 2011, please sign up soon on the FDA’s registration website, here.

I hope to see you in DC, herding cats and agitating for standards for the safety of MRI patients and staff!

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First, a little background. I am neither beholden to, or have an axe to grind against, any of the prominent (potential) players in MRI safety. They’ve each provided me opportunities to advance the cause, and rebuffed me. In the interest of transparency, here are my relationships with both the American College of Radiology (ACR) and the Joint Commission (TJC).

Dr. Emanuel Kanal, MRI safety guru extraordinaire, has been the ACR’s MRI Safety Committee chairperson since the group was formed in 2001. He invited me to serve on that committee in 2006, and an ACR executive group, which holds veto power over committee appointments, approved me. I participated on that committee and am one of the authors of what became the 2007 ACR Guidance Document for Safe MR Practices. When Dr. Kanal successfully lobbied the ACR to support an update to the Guidance Document last year, the prior committee was disbanded and each individual was subject to re-appointment. I was renominated by Dr. Kanal, but my reappointment was blocked by the ACR executive group. I do not serve on the current incarnation of that committee (which is working on an update to the ACR Guidance Document due out later this year).

Through the ACR, I got one superb opportunity to influence MRI safety. I thought I would get more than one… but it was just one. I have no engrained personal interest in lifting up the ACR, so when I recommend the Guidance Document, it’s because I believe that this product is worth my support. Similarly, when I criticize the ACR with respect to MRI safety (as I did, pretty unabashedly, here), it is because I believe that they can do better, and not some petty personal resentment. I did, after all, get that superb opportunity through them.

Switching gears, my relationship with the Joint Commission is strikingly similar to my relationship with the ACR. Over the years, Joint Commission Resources (their educational arm) has asked me to write several pieces for them on MRI safety for various publications. They’ve also interviewed me for another publication (a piece that almost didn’t see print because of a disagreement between me and TJC’s Standards and Survey Methods division about what SEA #38 meant to an accredited provider’s internal risk assessment). I also had the opportunity to provide an introduction to MRI safety as surveyor training to TJC’s ambulatory accreditation surveyor corps after TJC was selected as an approved radiology accrediting body under the MIPPA law. That’s the good (or, at least ‘mostly good’).

TJC is a large organization, and while I’ve gotten along successfully with their education group, spoken at one of their conferences, and provided services to their ambulatory group, the ‘mother ship’ of TJC is their hospital accreditation organization. I’ve butted heads, usually privately… though sometimes not, with the hospital side of the organization. Most recently I’ve been informed that TJC can not accept any of my services, paid or volunteered, because of a potential appearance of a conflict of interest. Effectively, I’ve been ‘blackballed’ from the Joint Commission. While there is much more that I would like to accomplish with and through TJC, I’ve already managed to do a fair amount with them. As with the ACR, I think I’m on even terms with TJC… no debt… no malice.

I lay this groundwork to get around to the main gist of this post. A few weeks ago I posted, and then, within a week, took down the TJC companion piece to the ACR critique.

“Why would you give preferential treatment to the Joint Commission… or did you go off the deep-end and say something you regretted?”

I think that the TJC piece was equivalent to the ACR piece. They’re both accurate and critical of certain actions within each organization. I don’t think that anything in either piece is inflammatory, or hurtful. I didn’t write anything that I regret having put down in bits. I know that several regular readers of this blog did see the TJC piece, and I invite any who did read it to post with any thoughts they had that it was / wasn’t appropriate and fair.

“So, why’d you take it down then?”

Those of you who know me know that I’m something of an MRI safety evangelist. I have said and done (foolishly and unrepentantly) things that were not in my own personal best interest when I felt that they advanced MRI safety. I have zero interest in having an “I told you so” moment, either in elevating myself or in denigrating healthcare / radiology institutions. I want improvement. I want results. And that’s why I took down the Joint Commission critique.

“Ummm, OK… But how did taking it down advance those improvements or results?”

For a long time, years in fact, TJC has been toying with the idea of substantive MRI safety programs, but there are both internal and external hurdles to overcome to allow this to happen. Every historical effort towards implementing MRI safety on the hospital side of the organization has atrophied and died.

Very shortly after I posted the Joint Commission MRI safety critique, I learned that my friend and colleague, Dr. Kanal, was arranging a meeting with TJC to re-spark the conversation about advancing MRI safety within TJC’s hospital accreditation program. While I have no direct involvement with TJC and Dr. Kanal in these conversations, Dr. Kanal and I did collaborate for the non-hospital MRI safety introduction for the Joint Commission, and I didn’t want the critique I wrote, coupled with any legacy of prior collaboration, to poison Dr. Kanal’s current efforts. So I took the post down.

If I felt that there were any parallel efforts underway at the ACR, and that taking down that post would advance those efforts, I’d pull it down in a heartbeat, too. To my knowledge, however, there aren’t, so until I see an advantage to taking it down, it stays and I invite everyone interested in this topic to read it, here.

And if the situation with the Joint Commission changes, and the current effort on MRI safety slips into the comfortable, well-worn precedent of failure, know that the post isn’t gone, it’s only disappeared, and will reappear if / when it’s absence isn’t more constructive.

Ultimately, it’s all about affecting change. We expect that we have thousands, perhaps tens-of-thousands, of MRI adverse events occurring every year in the US, and the vast, VAST majority of these are readily preventable, or would be if we had enforced standards. That’s what I’m after.

And this is me, being as transparent about the whole situation as I can be.

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The Joint Commission (TJC or, to those of us schooled in their acronym more than 3 years ago, JCAHO): TJC has just referenced the 2010 edition of the Guidelines for Design and Construction of Health Care Facilities as the new design and construction standard (effective today). The 2010 Guidelines codifies a number of the MR safety recommendations that have passed from the Joint Commission’s own lips and makes them standards for new construction. In 2011 I will apply whatever cajoling, leveraging, sweet-talking, or shaming that will help the Joint Commission to apply it’s own standards to the thousands of existing MRIs at TJC accredited providers. This began last year with training provided to TJC’s ambulatory care surveyors, forestalled and rebuffed offers of the same for their hospital surveyors.

Centers for Medicare / Medicaid (CMS): At least somewhat in response to the public attention that was focused on the issues of radiology / nuclear medicine safety through the ongoing series of articles by Walt Bogdanich of the New York Times, in 2010 CMS began development of a set of radiology / nuclear medicine patient safety standards that they intend to roll-out as a condition of reimbursement. It is anticipated that these will be unveiled in the spring for public comment before being enacted some time later. I know that, last year, MR safety proposals were presented to CMS, and at the anticipated public meeting I will seek to make sure that the single largest healthcare benefits provider in the US includes substantive MR safety standards.

Food and Drug Administration (FDA): Quick as they were to arrange public hearings on radiology safety (after the first couple Bogdanich articles saw print), the FDA has been ‘in the planning and coordination’ stages of a similar meeting on MRI safety for well over six months. Originally proposed for last year September, the prospective date has been nudged enough times that, as of my last inquiry, they’ve stopped even suggesting months, or even seasons, and I was last left with the promise of ‘sometime in 2011… hopefully the first half…’ I will endeavor to see that this meeting takes place (perhaps in concert with the CMS meeting), because I know that smart, capable people within the FDA have done analyses of MRI accidents and have developed an MR safety ‘short list’ of preventions which the FDA has yet to release, to say nothing of promulgate or endorse. Sitting on effective safety solutions when the accident rate is quadrupling is… well… inconceivable.

American College of Radiology (ACR): At the ACR’s presentation at the 2009 annual meeting of the American Healthcare Radiology Administrators (AHRA), the ACR representatives announced that the organization was going to incorporate MR safety standards from it’s own ACR Guidance Document for Safe MR Practices: 2007 in the ACR’s MR accreditation program. In 2010 I was privately told by a very well-placed person within the ACR that the new CMS oversight of the MIPPA accreditation process made it ‘logistically onerous’ to change the existing MR accreditation program (this despite the fact that the ACR was pleased to submit to CMS — and receive prompt approval for — an entirely new breast MR accreditation program). In 2011 we expect to see a new edition of the Guidance Document, which will make the fourth publication appearing under the ACR’s name that speaks to effective solutions for the reduction of MR accidents… and the fourth one that the ACR will have not included as an element of their own MR accreditation program. Whether it’s through meaningful standards passed down from CMS, or by reversing the apparent hypocrisy of the ACR, itself, I will spend 2011 working to see that substantive MR safety standards are incorporated as a part of the ACR’s MR accreditation program.

So what is the monster-list of standards that would be necessary to mitigate the vast majority of MRI accidents and injuries? Well, it turns out that it isn’t long at all, and all of these are already promulgated as best practice recommendations…

1. Provide annual MR safety training for all MR personnel (and MR irregulars)
2. Restrict access to controlled areas of the MR suite for unscreened / unsupervised persons and untested equipment per the ACR 4-zone model
3. Provide uniform and documented screening for all persons entering controlled areas of the MR suite
4. Screen persons and objects with a ferromagnetic-only detector before allowing access to controlled areas of MR suite
5. Provide hearing protection (and ensure proper usage) for all persons remaining in the magnet room during the MR exam
6. Use positioning aids and insulating pads as recommended to separate the MR patient from RF elements and conductive materials (including their own tissues)

These six items would likely cut the rates of MR accidents by more than 90%! These items have also been recommended (or very similar elements) by the Joint Commission, ACR, and others. If they were enforced, however, we could very nearly eliminate MR accidents in governed facilities!

Getting us to enforcement, that is my 2011 New Year’s Resolution, but I won’t make it there alone. Can I count on you to work on this with me?

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In about 4 years, NSF was identified (originally called Nephrogenic Fibrosing Dermopathy), the culprit identified, the population-specific susceptibility deduced, and effective screening protocols developed and deployed. Yes, it is still possible to develop NSF today, but we also have the tools requisite to interdict the agents that trigger the disease, and an industry-wide awareness of the preventative steps which are effective in doing so.

This is a testament to an international confederation of radiologists, nephrologists, pharmacologists and pathologists who collaborated on the challenge of this disease. It is worthy of a self-congratulatory pat on the back for radiology that we were able to sleuth-out the cause, and disciplined enough to execute effective prevention, in such a short time. But lest we spend too much time singing our own accolades, we should remember that more than 92% of MR accidents studied (selected based on the availability of information on causation), were made up burns, projectiles and hearing damage. These aren’t clinical problems, per se, rather they’re operational in nature.

Perhaps that accounts for the disparity in response. MR is a clinical instrument, and NSF was in the clinical wheelhouse. Yes, it extended well beyond radiology, but it was (and still is) essentially a clinical issue.

More often than not you will never find a radiologist actually in an MRI suite, so they are unfamiliar with – and often uncomfortable with – operational concerns. There are, of course, exceptions to this but those are… well… exceptional.

If NSF can be identified, studied, researched, and ultimately almost universally prevented in the course of a handful of years, how is it that we continue to see alarming year-over-year growth in combined burns, projectiles and hearing damage? If we can study a brand new disease and prevent it with nearly 100% effectiveness, why can’t we make sure insulating pads are used, or that ferromagnetic detectors are part of every MRI center, or that we make sure that hearing protection is used (and used properly)?

For these injuries there is no direct-causation mystery. We don’t need expensive animal trials, or chemical analysis of different contrast agents. We don’t need an international interdisciplinary clinical team. We need pads, ferromagnetic detectors, and earmuffs.

So my appeal, made plain in the headline, is for us to let NSF go. Let us not dwell in an anachronistic state of fear, nor linger any longer in self-congratulation. We have other tasks to help make MRI as safe as we know it can be, and we need to redirect our attention to that job ahead of us.

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Damn! I’m impressed, particularly since the abstract also states that this meeting was hastily called in response to articles appearing, starting in January of this year, in the New York Times on radiology and radiation therapy accidents. Such a coordinated response by the professional societies. Such representation from the professional community at a time when conference and professional development budgets are being slashed. How does this compare with MRI?

Well, MRI accidents haven’t been the focus of a string of national news articles, and I certainly wouldn’t begrudge safety-minded professionals within radiation oncology from seizing upon the public attention to address longstanding safety issues… but how do the raw numbers compare? Fortunately, we have an excellent resource for raw numbers and we don’t have to idly wonder.

The FDA’s medical device adverse event database, MAUDE, is much maligned (much of the maligning is by me), but its one redeeming value is that it gives us a snapshot, over time, of medical-device related adverse events.

I searched MAUDE, and from 1999 – 2009, three ‘radiation therapy’ product codes (JAI, LHN, IWB) accounted for 165 total adverse event reports. Some of those included things like pinched fingers while the couch was moving, but some were also the more serious adverse events, such as incorrect dose administration.

During the same 10 year period, the MAUDE database revealed that MRI (product code LNH) has 838 adverse event reports! That’s 5 times as many as radiation therapy! Similar to the radiation therapy reports, there were also adverse event accounts that were spurious, at best, but mixed in were accounts of broken bones, penetrating wounds, and even death, related to MRI hazards.

At the risk of being repetitive, I do not begrudge or belittle the current efforts at making radiation therapy safer for all who administer and receive it. Everywhere there is error in healthcare delivery, we have a duty to work to squeeze it out of existence, and nowhere is that mission more important than in the highly technical arenas of radiology, nuclear medicine and radiation therapy. My frustration, however, lies in the fact that larger safety issues, and safety issues that clearly have a dangerous trajectory, are being ignored.

I would love to see a collaborative forum of 14 organizations, MR manufacturers, and regulatory agencies from multiple countries gather to speak to the alarming growth of MR accidents. I’d love to see 400 professionals convene for a conference dedicated to practical, actionable and direct solutions to our contemporary MR safety needs. Unfortunately, many organizations that have similar duties to the MR community are ‘just too busy’ to look at MR safety right now.

I’ve said it before (and will say it again despite the fact that I hope I am completely and utterly wrong), it may take another high-profile MRI fatality to shake-off the professional indifference to MR safety issues.

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I was invited to present a paper at the American College of Radiology’s meeting on quality and safety held October 22 – 23 in Phoenix, Arizona. Actually, the invitation came in response to an abstract of a paper that hadn’t been written yet [not to self, don't promise papers you've not yet written again].

While the FDA’s adverse event data was clearly never intended to be useful to the outside world (we eliminated over 50% of the events from consideration, primarily because of too little narrative), it did provide a great snapshot of the diversity of accidents. We wound up with 104 useful event reports from an 18 month period of reporting.

We then compared each of these 104 events against the criteria in both the ACR Guidance Document and the Joint Commission Sentinel Event Alert #38. What we found gave us tremendous encouragement… encouragement tempered with some very unpleasant contemporary realities.

Stunning: Our review found that the ACR Guidance Document for Safe MR Practices: 2007 had explicit, actionable criteria that could have interdicted 80% of the 104 tested adverse events! And that doesn’t even include the general provisions for safety such as technologist training, or situational awareness.

The TJC Sentinel Event Alert (SEA) #38 fared somewhat less well, with a 49% effectiveness, though preventing half of the MRI adverse events that are occurring is certainly nothing to scoff at!

Frustrating: Neither the ACR nor the Joint Commission currently have any… ANY… explicit standards for MRI safety, despite the fact that each organization has published best-practice standards that promise to be 80% and 49% effective (respectively) in mitigating MR specific hazards in the MRI suite!

So the conclusion of the presentation offers a challenge to the ACR, the Joint Commission, DNV, and the IAC, to adopt explicit MRI safety standards as a requisite element of accreditation.

If you would like to view the presentation, please see the video (below).

http://www.youtube.com/watch?v=O4zsQ1Yh15A

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Also, make no mistake that I find the highly publicized flock of radiation exposure accidents abhorrent oversights. Whether it was equipment calibration, record errors, or simple human foul-ups, each of these violates the simple truth of the special obligation to patient safety that imaging has. But I think we have to look at these accidents squarely, and assess what went wrong, what the adverse outcomes were, and the appropriate preventative and mitigating steps are before we promote knee-jerk responses.

I am enthralled by MRI. And while my life and livelihood are by no means tied exclusively to this one modality, I am certainly doing myself no worldly favor by suggesting that the ‘simple fix’ of moving more patients to the safe solution, MRI, is neither simple nor necessarily safe (or safer, which is really the object). Hear me out…

Medical radiation accidents, in most of the reported cases, involve over-exposure of the individual. While there are extreme examples of this that result in clear, severe and sometimes fatal outcomes, most these over-exposures are similar in incremental lifetime risk to that of having spent your teenage years sun-worshiping, instead of worshiping bottles SPF 30. The best estimations for many of these accidents are that they involve modest increases to lifetime risks of developing cancer… outcomes that will manifest themselves often 20 years or more after the exposure.

It should not be forgotten that MRI is not without its risks. While they aren’t insidious, clandestine biological risks like lifetime cancer probabilities, they are equally serious. Recent examples include burns (up to a severity requiring amputation) magnetically-induced projectiles breaking bones or crushing body parts, and earlier this year a woman who was struck, killed, and her corpse magnetically-pinned to the MRI scanner!

Because the negative effects of medical ionizing radiation exposure (from X-ray based modalities, radiopharmecuticals or beam therapies) often won’t be realized for decades, particular consideration should be paid to treating the young, those under 30. Whenever feasible and clinically appropriate, these patients should be considered for non-ionizing exams and therapies, such as MRI or ultrasound, in lieu of CT. But we shouldn’t simply redirect everyone who can name all three Jonas Brothers to MRI, certainly not with how well we’ve been managing those risks.

While it hasn’t made Walt Bogdanich’s New York Times series on radiology accidents, the last several years of MRI accident data show accidents and adverse events quadrupling over four years! MRI is currently still an extraordinarily safe imaging option, but the meteoric growth in accidents, and the continued acceleration of that growth, are each frightening.

I have a ten-year-old daughter, and we have (reluctantly) acceded to her having a fluoroscopic exam, and I would choose an MRI, hands-down, for anything for which it was equally diagnostic. But each year that I watch the accident-trend data, the calculus gets a little bit more difficult. The MRI grows less appealing, and this is egregious because it should be the irrefutably safe option.

You see, we know what causes MRI accidents, and we know how to prevent them. The fact of quadrupled MRI accidents isn’t because of sunspots, or statistical clusters, or global warming, or MRI voodoo dolls, or anything else similarly beyond our understanding or control. The fact of quadrupled MRI accidents is because we, individually and collectively, fail to act. We fail to follow industry best practices. We fail to even expect best practices of our providers!

We should directly confront the issues of radiology safety, and not just those that land on the pages of the NY Times. In imaging we have a particular obligation to protect our patients, including those going for MRI.

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PS: They’re Nick, Joe and Kevin (the Jonas Brothers). You could either think I’m under 30 (‘Ha’), or realize that I have a pre-teen daughter… Take your pick.

“Hey, you, MR technologist! Make sure you know what you’re supposed to know to keep people safe around MRI.“

Make no mistake, as someone who spent a decade in college (which included a Masters degree and about half of a 2nd Bachelors), I’m a huge fan of education. What I’m adamantly opposed to – when it comes to MRI safety – is education without any standards or benchmarks, which is precisely where we find ourselves today.

The title of this post really isn’t far off the mark of what the current expectations of safety are. Regulatory, licensing and accreditation bodies seem to be unanimous in their concern that explicit MRI safety standards (even for education) would be ‘burdensome’ to the provider. As a result, many MRI providers find themselves in a position where they aren’t provided support tools to enhance safety, with the rationale that a ‘good tech is all you need.’ But at the same time, nobody has defined what MRI safety knowledge makes the ‘good tech’, well… good.

In a few weeks I’m going to be at the ACR ‘Maximizing Value in Radiology through Quality and Safety Improvements‘ meeting. At that meeting, I’ll be presenting information from a paper written by Dr. Emanuel Kanal and me; a retrospective analysis of FDA adverse event reports on MRI. The data is pretty grim.

Since 2004, reported MRI adverse event reports are up to a number more than 4-times what they were. Of the MR-specific reports, just over 92% of them fall into 3 categories, each of which could be significantly attenuated if existing ‘best practice’ guidance was simply adopted as required standards. Our analysis found that 80% of these adverse events had an explicit, measurable best practices that would have stopped them, and that doesn’t even include benefits to be gained from ill-defined standards for ‘provide MR safety training.’ Presumably enhanced training would both reinforce the explicit performance measures (enhancing the effectiveness of mitigating those 80% of events), and would likely diminish the 20% remainder that weren’t directly combated by the explicit measures.

So while the trend data is very disconcerting, the good news is that we already have the tools to reverse the alarming growth in MRI accidents. This patient safety initiative is so extremely ‘shovel ready’ that it could be deployed with little more than a few words amending existing accreditation and license standards.

In the meantime, imaging providers are slashing staffing ratios, cutting out travel allowances for conferences and training, seeking out less-experienced MR personnel (who will work for a lower salary). So while we admonish MR techs to ‘learn what you don’t know that you don’t know,’ we’re simultaneously taking away the tools that they might actually need to accomplish this near-impossible task.

In the weeks ahead I’ll be able to share more of Dr. Kanal’s and my research, but the take-away is already apparent…

We will continue to injure our MR patients, visitors and techs at increasing rates unless the accrediting bodies (ACR, TJC, and IAC), the regulatory authorities (FDA and individual State departments of health) and 800-pound gorilla payors (CMS) pick up and codify the practice standards that have been laid at their feet.

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Wired UK Illustration by Lee Hasler. Click for Wired UK source.

The UK edition of Wired magazine just ran one of their ‘featurettes’ on this blog and picked their favorite (though, that’s a slightly squint word-choice for potentially deadly accidents) types of projectile accidents. Quote’s from — and a direct link to — the article follow.

Often when I renew my subscription to Wired (the US edition) I get the complimentary tote, or whatever other trinket they’re giving away. This time, however, apparently my renewed subscription coincided with a small feature in the UK edition for this blog! [Perhaps I should start subscriptions to Forbes or Yachting to see if there's content-related good fortune that rubs off from either of those!!]

Below are quotes from the article (the original version of which is just a click away on the article title, below) and some of my added links to related content that aren’t in the online edition of the article. Please do visit the Wired UK site (click on the quoted headline, below) because they have embedded links to other, very interesting related Wired articles.

MRI’s fatal attraction

By Vaughan Bell|06 August 2010

Look out! It’s the dark side of the magnetic force

“It’s like Russian roulette, except that many don’t know that they’re even playing,” says Tobias Gilk, a California-based MRI safety consultant. MRI scanners have electromagnets so powerful that they can dislodge pacemakers, suck in beds from across the room and turn small metal objects into dangerous “ferromagnetic projectiles”. Gilk now collects data and reports of incidents at mrimetaldetector.com/blog.

[Well, maybe not dislodge pacemakers, but certainly disrupt them... sometimes with fatal results.]

Here are six of Wired’s favourite MRI metal menaces.

Floor polisher
This is so common that the internet has whole galleries of trapped cleaning machines. Floor polishers end up stuck in scanners when cleaners stroll into MRI facilities out of hours and only realise they’re in trouble when their equipment starts to gravitate towards the magnet.

[We could establish a very long gallery of floor polisher accident photos. In fact, in the 'Flying Objects' image collection of my friend Moriel Ness Aiver on his website, SimplyPhysics.com, there are quite a number of them to see! And while they don't show you the actual accident, here's a link to a Seattle news story on a floor-polisher meets MRI accident that occurred there.]

Metal gurney
A patient and a metal gurney were both lifted off the ground and pulled towards the magnet as they were accidentally wheeled into the MRI room. The scanner had to be shut down in order to free the bed, and the unlucky patient suffered from foot, ankle and leg fractures.

[Here's a link to the FDA accident report for this specific accident (the news account having been linked above). And here's a link to a popular image showing an ICU bed magnetically adhered to the face of an MRI scanner.]

Pistol
An MRI machine disarmed an off-duty US police officer. She forgot she was carrying her Glock pistol as she accompanied her mother, who was being scanned. The gun was pulled by the magnetic force, jamming her hand between the pistol and the machine and trapping the officer.

[Here's a link to my summary of the news story from that specific incident. There is also a peer-reviewed journal piece on a different, but similar, incident in which the handgun actually fired, despite the presence of two engaged safeties.]

Flat-screen
A member of the public who was inside the scanner solely for research purposes got badly injured when hospital staff walked a flat-screen monitor through the room. The magnetic field tried to put the screen and the participant in the same place; the next stop was casualty.

[Here's the link to the FDA accident report PDF for this one, too.]

Scissors
An MRI technician ended up with a pair of scissors embedded in his forehead as he prepared a patient. Someone entered the scanner room with the scissors in their pocket — they were pulled out by the magnet and collided arrowstyle with the technician’s head.

[There have been multiple accidents involving flying scissors in the MRI room. This one is among the most severe.]

Wheelchair
A wheelchair brought into the danger area shot across the room and pinned a radiographer to the scanner. The staff member was unharmed but a patient waiting for her scan was so frightened she fell off the bed and broke her leg.

[As with floor polishers, there have been many, many incidents of not-safe-for-MRI wheelchairs being brought to the MRI room. You can see a couple of these, as well as a sampling of other projectile objects here.]

Wired UK, September 2010

I am very flattered that the editorial staff at Wired UK included information on our humble little blog in their September, 2010 issue. I hope that this sort of attention raising opportunity is not lost on the audiences in the US and elsewhere.

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Well, in case your imaginations have only wrapped around the aftermath, and not the incident, I’ve just recently come across another visual aid that might just help you with the complete picture. Imagine a pair of scissors, an MRI, and a pumpkin…

MRI + scissors + pumkin = Do Not Try This!

Now, the screen shot, above, taken from the video doesn’t do the moving picture justice. I encourage you to take a look at it for yourself. But before you do it is vital to remember that this isn’t just a hypothetical. This accident and many, many other MRI projectile accidents – with, thankfully, less catastrophic outcomes -  occur all the time.

This isn’t simply a gee whiz scientific demonstration. This represents the real nature of projectile threats. It is at our (and our patients’) own peril that we relegate these to intellectual curiosities instead of cautionary tales.

So, with that prelude, you can find the video here.

I hope that every single MRI is adequately protected against similar sorts of accidents. This protection should include, in nearly every instance, ferromagnetic detection screening of patients, visitors, and equipment.

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