Why Do I Need an MRI?

Patients arrive at Above and Beyond Acupuncture in Scottsdale with a common story almost every week. They have been dealing with back pain, neck pain, or shooting nerve pain down a leg or arm for weeks or months. They have been to a chiropractor or a physical therapist. They have had X-rays done, and the news that came back was that there is some inflammation showing up but nothing serious. The treatment plan moves forward with adjustments, stretching, or maybe some heat and ice, and the pain is not going away.

The puzzle piece that usually has not been addressed is that an X-ray was the wrong test to run for what they are actually dealing with. The inflammation diagnosis may be true, but the underlying cause of the inflammation, the disc, the nerve, the soft tissue, is sitting on a structure the X-ray cannot see.

X-rays are useful for what they are designed to do, which is showing bone. They are quick, cheap, and easy to perform in an office. They are not useful for showing the actual structures that produce most nerve pain. If you have radiating pain, numbness, tingling, or weakness in an arm or leg, and the only imaging you have had is an X-ray, the source of your pain has likely not been imaged yet.

What an X-Ray Actually Shows

An X-ray is a picture of your bones. That is the whole job. X-rays show bone fractures, bone alignment, the spacing between vertebrae, and conditions that have produced visible changes to the bone itself.

What X-rays do not show is soft tissue. They cannot see the intervertebral discs, the cushions between your vertebrae. They cannot see the nerves coming out of the spinal cord. They cannot see disc bulges, disc herniations, or the kind of nerve impingement that produces sciatica, neck radiculopathy, and most of the patterns patients walk in with.

An X-ray of a person with a severely herniated disc pressing on a nerve root looks almost identical to an X-ray of a person with no disc problem at all. The bone structure is the same in both cases. The disc that is causing the pain does not appear on the image. The nerve that is being pinched does not appear on the image. The X-ray comes back clean while the actual problem is sitting right there, invisible to the test.

What an MRI Shows

An MRI is the imaging test that actually shows the structures producing most nerve and disc pain. The MRI uses magnetic fields rather than radiation to produce detailed pictures of soft tissue. It shows the discs, the spinal cord, the nerve roots, the muscles, the ligaments, and any structural abnormality affecting them.

If a disc is bulging, the MRI shows it. If a disc has herniated, the MRI shows it. If a nerve root is being compressed, the MRI shows exactly which level of the spine the compression is happening at and which nerve is involved. If there is inflammation, swelling, or fluid in the area, the MRI usually picks that up too.

For any patient with nerve symptoms, sciatica, radiating pain, numbness, tingling, or weakness, an MRI is the imaging that will actually answer the question of what is going on. An MRI is also one of the most detailed diagnostic tools in modern medicine, with no radiation exposure to the body.

Why You Might Not Have Been Sent for an MRI

There are a few reasons patients end up with X-rays instead of MRIs when an MRI would have been more useful.

The first reason is structural. Many chiropractic and physical therapy offices have X-ray machines on-site. They do not have MRI machines because MRI equipment is expensive and requires specialized facilities. When a patient walks into an office that has an X-ray machine, the imaging that gets ordered is often the imaging the office can perform itself. The financial incentive matters here. Offices can bill for imaging they perform in-house. Referring out for an MRI sends the imaging revenue somewhere else.

The second reason is professional. Some practitioners stay within a narrow scope of what they personally can address. If a chiropractor cannot treat a disc herniation surgically and will end up referring the patient to a spine specialist if the MRI shows one, there can be hesitation to order the imaging that might lead the patient out of the practice.

The third reason is genuinely systemic. Insurance companies often require X-rays first before approving an MRI, and many practitioners default to that workflow. The patient ends up waiting weeks or months between the X-ray and the MRI while their symptoms get worse.

None of this is malicious. It is the structure of how care gets delivered in offices with different equipment and different billing incentives. But the patient who is in pain deserves to know that the imaging they have received may not have been the imaging they actually needed.

The Insurance Question

If you have health insurance, the MRI is usually worth pursuing even with the co-pay involved. You are already paying monthly premiums. The cost of the co-pay for an MRI is typically a fraction of what the imaging would cost out of pocket, and the information the MRI provides is what allows everyone involved in your care to actually know what they are treating.

Patients sometimes hesitate because the insurance company wants them to do an X-ray first. The X-ray will not show what is causing your nerve pain. Pushing through to the MRI, even if it means navigating the prior authorization process, gives you the diagnostic information that should be guiding your treatment.

If your primary care doctor or the practitioner ordering imaging does not order the MRI, you can ask directly for one. You can also ask for a referral to a spine specialist or a neurologist who is more likely to order the MRI as part of their standard workup.

When an MRI Is Not Needed

To be fair to the imaging conservatism that some practitioners practice, not every patient with back or neck pain needs an MRI. If the pain is recent, localized, not radiating, and improving with conservative care, watchful waiting is reasonable. If there are no nerve symptoms and no red flags, an MRI may not change anything about the treatment.

The patients who do need an MRI are the ones with radiating pain, neurological symptoms, pain that is not improving after several weeks of conservative care, or pain that is severe enough to interfere with daily life. If you are in that group, the MRI is the test that gives you and your providers the information you need.

What an MRI Means for Acupuncture Treatment

For acupuncture treatment specifically, the MRI provides important information. Knowing exactly which discs are involved, which nerve roots are being compressed, and what the pattern of nerve impingement looks like allows the practitioner to design treatment that addresses the specific issue rather than working blind. The deeper read on how nerve impingement actually works is covered in Understanding Nerve Impingement.

Patients sometimes ask the opposite question, which is what to do if their MRI comes back showing no clear structural cause for their pain. That situation is real and surprisingly common, and it is addressed in Normal MRI but Still in Chronic Pain and Am I Stuck in a Pain Cycle?.

Where to Start

If you have been dealing with nerve pain, sciatica, or chronic radiating pain and the only imaging you have had is an X-ray, the next step is to push for the MRI that will actually show what is going on. If you would like a clinical conversation about what your situation looks like and how acupuncture could fit into your treatment plan, reach out to Above and Beyond Acupuncture on North Frank Lloyd Wright Boulevard in Scottsdale to schedule a consultation.

Schedule an appointment online or call us today to start your journey to relief.

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