For many patients, the thought of undergoing an MRI scan brings anxiety even before entering the scan room. The narrow tunnel, loud noises, and need to remain still can trigger significant fear — especially in people with claustrophobia.
In fact, studies suggest that nearly 10% of patients experience claustrophobia during MRI examinations, and some may even be unable to complete the scan. Certain reports estimate that 4–20% of MRI scans are interrupted or refused due to anxiety and claustrophobic symptoms.
So naturally, many patients ask:
“Why can’t I just get an Open MRI instead?”
The answer is important — because while comfort matters, diagnostic accuracy matters even more.
Why Most MRI Machines Are Tunnel-Shaped
Most hospitals and advanced diagnostic centres use “closed-bore” MRI systems — the tunnel-like scanners that patients commonly see.
This design is not simply for convenience. MRI requires:
- A very strong magnetic field
- Excellent magnetic field uniformity
- High signal strength for detailed images
The tunnel-shaped magnet helps create this highly uniform and powerful magnetic environment, which is essential for producing sharp, accurate images.
Today, the majority of high-quality MRI systems operate at 1.5 Tesla or 3 Tesla strength, providing superior image clarity for:
- Brain disorders
- Spine problems
- Stroke
- Tumors
- Ligament injuries
- Small nerve abnormalities
- Vascular diseases
Why Open MRI May Not Always Be Ideal
Open MRI systems were developed primarily to improve patient comfort and reduce claustrophobia. They are more spacious and less confining.
However, many open MRI systems operate at lower magnetic field strengths, which can reduce:
- Image resolution
- Signal quality
- Detection of subtle abnormalities
Lower-field MRI scanners may sometimes miss small lesions or produce images that are less detailed compared to standard high-field MRI systems.
This becomes especially important in conditions involving:
- Brain imaging
- Small strokes
- Epilepsy
- Spine and nerve disorders
- Ligament and cartilage injuries
- Early tumors
- Multiple sclerosis
While modern open MRI technology has improved considerably, many specialists still prefer high-field closed MRI for critical diagnostic situations.
The Good News: Modern MRI Is Becoming More Comfortable
Fortunately, MRI technology has evolved.
Many modern MRI scanners now feature:
- Wider tunnel openings
- Shorter bore length
- Better lighting and ventilation
- Faster scan protocols
- Noise reduction systems
Studies show that newer wide-bore MRI systems significantly improve completion rates among claustrophobic patients and reduce the need for sedation.
How to Overcome MRI Fear and Claustrophobia
If you are anxious about MRI, you are not alone — and there are many ways to make the experience easier.
- Talk to the MRI Team Before the Scan
Inform the radiology staff beforehand if you are claustrophobic or anxious. Experienced MRI teams routinely help nervous patients.
- Understand That MRI Is Painless
MRI does not use radiation and does not hurt. The machine only creates magnetic signals to generate images.
- Keep Your Eyes Closed
Many patients feel much better simply by closing their eyes before entering the scanner.
- Use Music or Headphones
Most MRI centres provide ear protection or music to reduce stress from scanner noise.
- Practice Slow Breathing
Controlled breathing can significantly reduce panic sensations.
- Bring a Family Member
Having someone nearby before the scan often provides reassurance.
- Ask About Wide-Bore MRI
Wide-bore MRI systems offer more space without compromising image quality like some low-field systems may.
- Mild Sedation Can Help
For severe claustrophobia, doctors may prescribe mild anti-anxiety medication before the scan.
Remember: The Goal Is the Right Diagnosis
MRI is often performed to detect conditions that cannot be seen clearly on X-ray or CT scan. While comfort is important, the primary goal is obtaining the most accurate diagnosis possible.
Choosing a more comfortable scan that compromises image quality may sometimes lead to missed findings, repeat scans, or delayed diagnosis.
The best approach is:
- Discuss your fears openly
- Choose a centre experienced in handling anxious patients
- Opt for the most appropriate MRI system for your medical condition
Because in medicine, the clearest image often leads to the best treatment.
