Better Health: Smart Health Commentary Better Health (TM): smart health commentary

Article Comments

Normal People Have Abnormal Brain MRIs

A recent research study suggests that as many as 7% of adults over 45 have had a stroke without even realizing it. Researchers performed brain MRI scans of 2000 “normal” (asymptomatic) Dutch men and women between the ages of 45 and 96, and found that 7.2% of them (145 people) had evidence of an infarct (stroke), 1.8% (36 people) had small aneurysms, and 1.6% (32 people) had benign tumors (usually a small malformation of the blood supply to the brain).

Interestingly, they also found one person with a primary brain cancer, one person with a previously undiagnosed lung cancer that had metastasized to the brain, one person with a life-threatening subdural hematoma (brain bleed), and one person with an aneurysm large enough to require surgery. So altogether, they found 4 people out of 2000 who needed urgent medical intervention.

Although the authors of the article emphasized the point that many “normal” people have harmless brain abnormalities – I was a bit surprised by the fact that they found 4 asymptomatic people unaware of a ticking time bomb in their brains.

Keep in mind that the study was conducted on middle class Caucasian adults in the Netherlands – so we cannot generalize these findings to more diverse populations. But I do think it’s a bit of an eye-opener.

MRI scans are quite expensive (well over $1000 in most cases) and are therefore not offered to the general population as a screening test. But it does make you think about saving up for one. Your radiologist may find something unimportant, or she may find something that you hadn’t bargained for. Or maybe one day the technology will be inexpensive enough to offer as a screening test in a primary care setting. But that’s not going to happen any time soon.This post originally appeared on Dr. Val’s blog at

You may also like these posts

    None Found

Read comments »

Comments are closed.

Return to article »

Latest Interviews

IDEA Labs: Medical Students Take The Lead In Healthcare Innovation

It’s no secret that doctors are disappointed with the way that the U.S. healthcare system is evolving. Most feel helpless about improving their work conditions or solving technical problems in patient care. Fortunately one young medical student was undeterred by the mountain of disappointment carried by his senior clinician mentors…

Read more »

How To Be A Successful Patient: Young Doctors Offer Some Advice

I am proud to be a part of the American Resident Project an initiative that promotes the writing of medical students residents and new physicians as they explore ideas for transforming American health care delivery. I recently had the opportunity to interview three of the writing fellows about how to…

Read more »

See all interviews »

Latest Cartoon

See all cartoons »

Latest Book Reviews

Book Review: Is Empathy Learned By Faking It Till It’s Real?

I m often asked to do book reviews on my blog and I rarely agree to them. This is because it takes me a long time to read a book and then if I don t enjoy it I figure the author would rather me remain silent than publish my…

Read more »

The Spirit Of The Place: Samuel Shem’s New Book May Depress You

When I was in medical school I read Samuel Shem s House Of God as a right of passage. At the time I found it to be a cynical yet eerily accurate portrayal of the underbelly of academic medicine. I gained comfort from its gallows humor and it made me…

Read more »

Eat To Save Your Life: Another Half-True Diet Book

I am hesitant to review diet books because they are so often a tangled mess of fact and fiction. Teasing out their truth from falsehood is about as exhausting as delousing a long-haired elementary school student. However after being approached by the authors’ PR agency with the promise of a…

Read more »

See all book reviews »