Open MRI vs Closed MRI: What’s the Difference and Which One is Right for You?

One of the most common questions I hear from patients is: "What’s the difference between open MRI and closed MRI—and which one should I choose?"

Whether you’ve been referred for an MRI for chronic pain, joint issues, or post-surgical follow-up, it’s important to understand the type of MRI you're receiving. Not only does it impact your comfort during the scan, but it can also affect the quality of images your provider receives.

Let me walk you through the basics of open MRI vs closed MRI from someone who’s been behind the machine thousands of times.

What Is an MRI, Anyway?

MRI (Magnetic Resonance Imaging) is a non-invasive diagnostic tool that uses a powerful magnetic field, radio waves, and a computer to produce detailed images of organs, soft tissues, bones, and other internal body structures.(1) It does not rely on radiation like X-rays and CT scans do. MRIs are an essential tool in modern medicine, especially when X-rays and CT scans are unable to provide enough information.

However, not all MRIs are created equal. The design of the MRI machine you’re scanned in—open vs closed—can make a big difference in your experience and outcome.

Understanding Open MRI

Open MRI machines were designed with patient comfort in mind. Instead of the traditional enclosed tunnel, open MRI systems feature an open-sided or open-top design, allowing more space around the patient.

Here’s what makes Open MRI stand out:

1. Comfort for Claustrophobic Patients

Let’s face it, lying in a narrow tube for 30 to 60 minutes while trying not to move can be stressful. For patients who are claustrophobic or anxious in tight spaces, the open MRI is a game changer. You’re not completely enclosed, and in many cases, you can even see out during the scan.

2. Better Experience for Pediatric and Elderly Patients

Kids and older adults often struggle with lying still for long periods, and they may need extra reassurance during imaging. Open MRI allows a parent or caregiver to stay nearby in some cases, and the open design reduces feelings of isolation.

3. Weight Accommodation

Traditional closed MRI systems can be limiting for larger-bodied patients. Many open MRI systems are designed with wider table widths and higher weight capacities, making them more inclusive and safer.

4. Flexible Positioning

Some open MRI units allow for more flexible patient positioning, which can be helpful for

patients with mobility issues or painful conditions that make it hard to lie flat.

That said, open MRI does come with some trade-offs. Most notably, the image quality can be

slightly lower compared to closed MRI systems. Open MRI machines typically have a lower

magnetic field strength—commonly 0.3T to 0.7T (Tesla), compared to 1.5T or 3T in a closed

MRI.

This means that certain fine details may not be as clear, especially for neurological scans, vascular imaging, or smaller joints. However, the good news is that the gap is closing. Advancements in open MRI technologies have made significant strides in image quality.

At our clinic, we use both high-resolution dedicated extremity magnet, which is actually a closed MRI system just for extremities. This provides the closed tunnel high-resolution image while minimizing the feeling of claustrophobia by being in an open setting. Only the extremity is placed in the magnet while the entire body remains outside in a comfortable reclining chair. This is one of the most revolutionary advancements in MRI imaging, significantly improving patient outcomes. Our high-resolution open MRI system offers a great balance between comfort and clarity.

What Is a Closed MRI?

Closed MRI machines are what most people picture when they think of an MRI. The long cylindrical tube that you lie in while the scan is conducted. These systems have been the gold standard in medical imaging for decades.

Closed MRI benefits include:

1. Higher Image Resolution

Closed MRI systems, particularly the high-field 1.5T and 3T models, deliver incredibly sharp, detailed images.(2) This is especially crucial when scanning the brain. 

2. Faster Scans

Since the magnetic field strength is higher, closed MRIs often get through sequences faster.(3) Less time in the scanner can be a plus, especially for patients with pain or limited tolerance for being still. 

3. Wider Diagnostic Capability

Some types of scans such as functional MRI (fMRI), MR spectroscopy, or advanced cardiac MRI, can only be performed on closed systems due to the complexity of the imaging sequences involved.(4)

However, the closed MRI isn’t ideal for everyone.

Challenges with Closed MRI:

• Claustrophobia: Even with a mirror or music, many patients find the closed environment difficult to tolerate. Some require sedation or anti-anxiety medication to complete the scan.

• Noise: All MRIs make noise, but closed MRIs are often louder, and earplugs or headphones are a must.

• Size Limitations: While newer closed machines have slightly wider bores (the tunnel you go into), they can still be a tight squeeze for patients with larger body types or mobility limitations.

Open MRI vs Closed MRI: Which Should You Choose?

Ultimately, the choice comes down to your specific health needs, anatomy, and comfort level. Here’s a quick breakdown:

Factor	Open MRI	Closed MRI
Comfort	Excellent for claustrophobic or anxious patients	May require sedation for anxious patients
Image Quality	Moderate to high (depending on the system)	Highest resolution and detail
Body Size Accommodation	More inclusive for larger-bodied patients	Some limitations, even with wide-bore models
Scan Speed	Slightly longer per sequence	Faster due to higher magnet strength
Types of Exams	Good for most general scans	Best for detailed neuro, cardiac, and vascular imaging
Cost	Often slightly lower (varies by clinic)	Can be higher depending on machine and facility

As a clinic owner, I always emphasize individualized care. We review each patient’s referral, health history, and personal concerns before scheduling. Many patients come to us because of the ease and comfort of the open MRI machine and procedure especially when it comes to getting a foot MRI or a wrist MRI. 

My Advice as a Radiologic Technologist and Clinic Owner

If you’re feeling unsure about the MRI process, don’t be afraid to ask questions. At our clinic, we believe patient education is just as important as the scan itself.

Here are a few tips before your appointment:

• Let us know if you’re claustrophobic. Even with an open MRI machine, remaining still can be difficult for some.

• Tell us about any implants. Some pacemakers, metal clips, or joint replacements can affect what type of scan you can safely have.

• Ask about the field strength of the machine. Not all open MRIs are created equal. Some are high-field, offering excellent image quality.

• Be honest about your comfort level. Your well-being matters more than rushing through a scan.
  

Final Thoughts

Choosing between open MRI vs closed MRI doesn’t have to be overwhelming. With the right guidance from your technologist or referring physician, you can find a solution that meets both your diagnostic needs and personal comfort.

As someone who has performed thousands of scans, I can tell you: the best MRI is the one you can complete comfortably while still providing the clarity your doctor needs to make the right call.

If you ever find yourself unsure, just ask—we’re here to help you feel informed, safe, and cared for every step of the way.

Sources:

1. What is an MRI. Cleveland Clinic. 2022. 

2. 3 T: the good, the bad and the ugly. Martin John Graves. PubMed. 2021. 

3. MR imaging at high magnetic fields. Masaya Takahashi. Science Direct. 2003.

3. Overview of Functional Magnetic Resonance Imaging. Gary H Glover. PubMed. 2012.