If your doctor has recommended an MRI to investigate joint pain, a sports injury, back pain, or another orthopedic concern, you may have questions about the type of MRI machine you will use. You may have heard the term wide bore MRI and wondered how it differs from the traditional imaging machine.
Both wide bore and traditional MRI machines use the same basic technology to create detailed images of structures inside the body. The primary difference is the size of the opening. For many patients, a wide bore MRI can provide a more comfortable experience while still producing the detailed images physicians need to evaluate orthopedic conditions. However, the best MRI option depends on the specific exam, the technology available, and the patient’s individual needs.
What Is a Wide Bore MRI?
A wide bore MRI machine is an advanced diagnostic scanner designed with a larger tunnel opening (the “bore”) than conventional units. Standard scanners feature an opening of approximately 60 centimeters (about 2 feet) in diameter. In contrast, a wide bore MRI features a 70-centimeter opening (nearly 28 inches).
While a 10-centimeter (about 4-inch) difference might sound small, it dramatically expands the interior space. This extra room provides significantly more headroom, shoulder room, and breathing space. Furthermore, wide bore units are built with a shorter tube length, allowing many patients to keep their head outside the scanner entirely during lower-body scans, such as knee, ankle, or hip examinations.
Wide Bore MRI vs. Regular MRI: What Is the Difference?
When comparing wide bore MRI vs. standard MRI, the biggest difference patients are likely to notice is the amount of space around them.
The important takeaway is that choosing between a wide bore and standard MRI is not necessarily a choice between high-quality and low-quality imaging. Both are capable of producing exceptional quality images. The specific scanner, imaging protocol, body part being examined, and clinical question all affect the usefulness of the examination.
| Feature | Wide Bore MRI Machine | Traditional MRI Machine |
|---|---|---|
| Comfort | Larger opening offers a more spacious experience | More confined opening |
| Claustrophobia Concerns | May be more comfortable for patients who dislike enclosed spaces | Can feel confining or cause anxiety in some patients |
| Image Quality | Exceptional, high resolution | Exceptional, high resolution |
| Scan Duration | Depends on the machine and exam; newer technologies can shorten scan time (15 to 60 minutes) | Depends on the body part and scanner (15 to 60 minutes) |
| Common Orthopedic Uses | Joints, muscles, tendons, ligaments, the spine, and other musculoskeletal imaging | Joints, muscles, tendons, ligaments, the spine, and other musculoskeletal imaging |
Is Wide Bore MRI Better for Orthopedic Imaging?
There is no single MRI machine that is automatically better for every patient or every orthopedic condition.
An MRI is particularly useful for evaluating soft tissues and structures that may not be clearly visible on an X-ray. A musculoskeletal MRI can help physicians evaluate major joints, the spine, muscles, tendons, and ligaments. It may be used to investigate conditions such as meniscus tears, ligament injuries, rotator cuff or labral tears, spinal disc abnormalities, arthritis, and sports-related injuries.
A wide bore scanner may offer an important advantage when patient comfort is a concern. A larger opening can make it easier for some patients to relax and remain still during the examination. That matters because movement can cause blurring and reduce the usefulness of MRI images.
How Does a Wide Opening MRI Help With Claustrophobia?
For some patients, the thought of lying inside an MRI scanner can be stressful. The traditional closed MRI machine has a cylindrical design, and the patient must remain relatively still while the table moves into the scanner.
A wide opening MRI provides more room around the patient. Although it is still a closed-bore scanner, the additional space may make the examination feel less restrictive.
If you are concerned about claustrophobia, tell your physician and MRI technologist before the examination. Depending on the circumstances, your care team may be able to discuss ways to make the experience more comfortable. Some patients may also benefit from discussing anxiety-management options with their physician before the appointment.
Does a Wide Bore MRI Produce the Same Results as a Traditional MRI?
In many cases, a wide bore MRI can provide the detailed images needed for orthopedic diagnosis. However, MRI scanners are not interchangeable for every examination.
Different scanners have different hardware, software, magnets, coils, and imaging capabilities. Your physician and imaging team determine which type of MRI and imaging protocol are appropriate for the body part and condition being evaluated.
How MRI Helps Orthopedic Physicians Make Treatment Decisions
Whether using a standard machine or a wide bore option, imaging is one part of a larger diagnostic process. Orthopedic physicians typically consider your symptoms, medical history, and physical examination along with imaging findings when determining what may be causing your pain or limiting your movement.
An MRI can provide detailed information about soft tissues, cartilage, tendons, ligaments, muscles, and other structures. That information can help physicians identify an injury, assess its severity, and determine whether nonsurgical treatment, additional evaluation, or surgery may be appropriate.
FAQ
Is a Wide Bore MRI Accurate?
Yes. A wide bore MRI can provide detailed diagnostic images. Accuracy depends on factors such as the specific MRI system, imaging protocol, body part being examined, patient positioning, and ability to remain still.
Who Can Have a Wide Bore MRI?
Many patients can undergo a wide bore MRI, but MRI is not appropriate for everyone. Because MRI uses a powerful magnetic field, patients must be screened for certain implanted devices, metal, and other potential safety concerns. Tell your care team about any implants, medical devices, prior surgeries, or metal in your body before an MRI.
Does Insurance Cover a Wide Bore MRI?
Insurance coverage varies based on your insurance plan, the reason for the MRI, authorization requirements, and the facility where the imaging is performed. Before scheduling, ask your insurance company and imaging provider about coverage and any authorization or out-of-pocket requirements.
Is a Wide Bore MRI the Same as an Open MRI?
No. A wide bore MRI has a larger opening than a traditional MRI but remains a closed-bore scanner. An open MRI has a different design with more open space around the patient. The appropriate scanner depends on the examination and the patient’s needs.
Choosing the Right MRI for Your Orthopedic Care
The most appropriate MRI is the one that can safely provide the diagnostic information your physician needs. For some patients, a wide bore MRI can make the experience more comfortable without sacrificing the detailed imaging needed to evaluate orthopedic conditions.
Make an appointment with one of our specialists to discuss your symptoms, diagnostic options, and next steps toward getting the care you need.
