Getting Around the Scan Ban

The strategy involves reprogramming the devices just before and after the MRI test and close monitoring of patients by a specially trained nurse during the scan.

 The "Indomitable" MRI

Raymond Damadian's medical imaging machine set off a revolution, but not without controversy.

 The Freaky, Clanking, Buzzing, Whirring Glory Of MRI

Since seeing what's going on is the first step to fixing what's going on, the MRI has proved to be something of a miracle in the domains of healing.

MRI's inside story

Magnetic-resonance imaging, which provides detailed pictures of people's insides, has proved to be an invaluable medical tool. But exactly who should take credit for its invention is deeply controversial.

The Cardiac MRI

I’m usually pretty calm about medical testing, unless of course I have to EAT or DRINK contrast – because that is an entirely different beast on its own – but I had heard so many horror stories about MRI’s over the years and I was actually a little nervous.

The Invention of the MRI

Short video documentary honoring the the Inventor of the MRI (Magnetic Resonance Imaging) Dr. Paul C. Lauterbur from Stony Brook University.

A neuroscientist explains: magnetic resonance imaging - podcast

This week, Observer Magazine columnist and neuroscientist Dr Daniel Glaser delves into the world of magnetic resonance imaging (MRI). How does it work? Where did it come from?

After another stumble, is fMRI brain scanning learning from its mistakes?

When it was first used in humans in 1992, fMRI gave scientists their first real dynamic window into the brains of humans, thanks to a powerful magnet that could measure the oxygen in the blood flowing to different parts of the brain. Inside the machine, researchers could see different areas “firing up” in real time when people looked at animals, made decisions, or recalled memories. It was a breakthrough.

Bringing MRI Where It’s Needed Most

You haven’t had an MRI before, chances are you know someone who has. Magnetic Resonance Imaging (MRI) is widely used to create pictures of soft tissues in the body — allowing doctors to identify anything from a torn knee ligament to a concussion. MRIs provide critical early diagnosis of potentially life-threatening injuries, yet their size and cost make them difficult to deploy to hard-to-reach places.

CT Scan vs. MRI

A CT Scan (or CAT Scan) is best suited for viewing bone injuries, diagnosing lung and chest problems, and detecting cancers. An MRI is suited for examining soft tissue in ligament and tendon injuries, spinal cord injuries, brain tumors, etc. CT scans are widely used in emergency rooms because the scan takes fewer than 5 minutes. An MRI, on the other hand, can take up to 30 minutes.

Do M.R.I. Scans Cause Any Harm?

Most concerns about M.R.I.s involve people with metal, such as shrapnel, embedded in their bodies, or someone with an implanted medical device, like a cochlear implant or an older pacemaker.

Exploring the Brain: Is CT or MRI Better for Brain Imaging?

The answer to which imaging modality is better for imaging the brain is dependent on the purpose of the examination. CT and MRI are complementary techniques, each with its own strengths and weaknesses.

How do MRIs detect medical problems?

Unlike CT, MRI can show pictures along many planes--the axial plane, the saggital plane (side to side) and the coronal plane (front to back)--enabling physicians to see images that were previously impossible to visualize except during autopsy.

Life looks really different through an MRI machine

Magnetic Resonance Imaging "sees" inside the body by mapping the position of water molecules, which exist at different densities in different types of tissue. More specifically, MRI scanners use a strong magnetic field and pulses of radio waves to manipulate hydrogen protons in the body.

Life looks really different through an MRI machine

Magnetic Resonance Imaging "sees" inside the body by mapping the position of water molecules, which exist at different densities in different types of tissue. More specifically, MRI scanners use a strong magnetic field and pulses of radio waves to manipulate hydrogen protons in the body. When the radio frequency source is switched off, the hydrogen protons reveal their position by re-emitting energy, which is captured and translated into images.

Male, Female Brains Are Wired Very Differently, Scans Show

The research, which involved imaging the brains of nearly 1,000 adolescents, found that male brains had more connections within hemispheres, whereas female brains were more connected between hemispheres.

MRI Back Scans Do Not Predict if You Need Surgery

The next time your are lying on your back, encased in a MRI machine making clanging and banging sounds from another world, keep in mind that the amazing pictures your doctor will show you of your back are only part of the story. Remember that there is no such thing as “good as new.”

MRI: Myth or reality? A radiologist answers your questions.

As a radiologist who spends a number of hours each day reading MRI scans, I’m often asked questions by patients and physicians about the test itself — what to expect, when is it safe, etc. These questions motivated me to expound on some aspects of this incredible but sometimes misunderstood imaging test.

MRIs Make You Dizzy? Here’s Why

If you’ve ever gone for an MRI and been left feeling woozy, new research says you’re not just being a wuss: there’s an actual physical culprit behind that dizziness.

Portable MRI named Top 10 Breakthrough of 2015

"Hospital-based MRI devices are big and expensive," said Michelle Espy, the bMRI project leader. "And they require considerable infrastructure, like large quantities of liquid nitrogen and helium, and a lot of energy. bMRI doesn't have those same requirements, making it a much lighter, less expensive and low-power alternative that can be deployed to hard-to-reach places like the battlefield and remote hospitals in poor countries."

The science of medical imaging: magnetic resonance imaging (MRI)

MRI was first used for imaging in the 1970s and since then, has seen many improvements. One of these, functional MRI (fMRI), allows changes in neuronal function to be observed while the patient performs a task. MRI most commonly maps the distribution of water in the body. Water is composed of two hydrogen atoms and a single oxygen atom.

The Sound and the Fury

What are the noises that M.R.I. machines make?

What is an MRI (Magnetic Resonance Imaging)?

The technique uses a very powerful magnet to align the nuclei of atoms inside the body, and a variable magnetic field that causes the atoms to resonate, a phenomenon called nuclear magnetic resonance. The nuclei produce their own rotating magnetic fields that a scanner detects and uses to create an image.

Why an MRI costs $1,080 in America and $280 in France

There is a simple reason health care in the United States costs more than it does anywhere else: The prices are higher.

Why It Pays to Shop Around for That MRI

Employers give workers a cut of health-care savings.