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Frequently Asked Questions

Answers to the most common questions about Digital Motion X-ray (DMX), cervical instability, radiation safety, insurance, and the symptoms our patients often experience.

DMX Basics & Safety

Is DMX safe in terms of radiation exposure?

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Yes. DMX uses very low levels of radiation — similar to a standard 7-view cervical X-ray or CT scan depending on duration. The technology is specifically designed to minimize exposure compared to traditional video fluoroscopy. See our DMX Radiation page for full details.

Is DMX considered an antiquated technology?

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In some respects yes, and in others no. While the roots of motion X-ray go back over a century, modern DMX is the gold standard for ligament instability studies because of its low-radiation, real-time video capture and reverse-contrast design. It remains far safer and more precise than hospital-grade fluoroscopy for this purpose.

Insurance, Costs & Logistics

Is DMX covered by my insurance?

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Most insurance plans cover at least a portion of DMX imaging. Coverage varies by provider and plan. We do not bill insurance directly, but we provide a detailed statement (superbill) for you to submit for reimbursement. Many patients receive several hundred dollars back. See our Pricing page for details.

Why is a Digital Motion X-ray more expensive than a regular X-ray?

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DMX is a specialized functional imaging study — comparable in sophistication to cervical MRI, CT, or fluoroscopy. The advanced equipment, real-time video capture, and detailed mensuration analysis require more time and resources than a static X-ray.

How long is a DMX evaluation?

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Each evaluation takes approximately 30–40 minutes. We schedule an hour to allow for questions, special circumstances, and to review your results with you.

Will I receive a copy of my DMX and report?

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Yes. You will receive a digital copy of your DMX video and the full mensuration report. With your permission, we will also send copies to any providers you designate on your HIPAA forms.

Do your reports include measurements?

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Yes — every cervical DMX includes a complete mensuration analysis at no extra charge. This detailed report is essential for accurately assessing instability. Extremity studies usually do not require measurements.

My doctor wants the DMX in DICOM format. Do you provide this?

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DICOM does not support true motion video. We select the key diagnostic frames, perform the measurements, and include them in your report and provide you with before annotation and after annotation DICOM formatted versions of these images. We can also provide DICOM-formatted stills of the images used in your report to your doctors.

DMX vs. MRI, X-ray & Other Imaging

I’ve heard DMX is good for ligament damage, but X-rays don’t show ligaments — wouldn’t an MRI be better?

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MRIs are excellent at showing static soft-tissue tears, but they cannot assess how ligaments function during movement. DMX is the only imaging that captures real-time motion and measures instability in a weight-bearing position.

Aren’t joints slipping on regular X-rays and MRIs enough to show instability? Why do I need DMX?

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Static images may show some slippage, but only DMX reveals exactly when and how much instability occurs during motion. Our mensuration report quantifies the exact degree of ligament laxity before protective muscle guarding begins.

Other clinics claim to offer “motion studies.” What makes your equipment different?

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True Digital Motion X-ray (DMX) is the 20+ year gold standard used in major instability research. It captures real-time video at extremely low radiation levels. Many “motion studies” are simply modified standard X-rays — only genuine DMX delivers this level of precision and safety.

Clinical Use & Accuracy

Moving my neck hurts. Wouldn’t passive motion be better for imaging?

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Active motion during DMX best reveals true ligament function and dynamic instability. We guide you gently to minimize discomfort while still capturing the full range needed for an accurate diagnosis.

An IME doctor said DMX has no diagnostic value and exposes me to too much radiation. Is that true?

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No — this is a common misconception. True DMX is the recognized gold standard for proving ligamentous instability per AMA guidelines and is routinely used in major personal-injury cases. We have successfully refuted these claims in legal and clinical settings many times.

Symptoms & Cervical Instability

Why do I have chronic headaches that won’t go away, even with medication?

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Many persistent headaches (especially at the base of the skull or behind the eyes) are caused by undiagnosed upper cervical instability. Loose ligaments allow small vertebral shifts that irritate nerves and affect blood flow — issues static scans often miss.

I feel dizzy or off-balance, especially when turning my head. Is it my neck?

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Yes — this is often cervicogenic dizziness caused by upper neck instability sending incorrect signals to your brain. DMX can help pinpoint the exact mechanical issue.

Why does my head feel so heavy, like it’s too much for my neck?

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This “bowling ball on a straw” sensation is a classic sign of craniocervical instability (CCI). Weak ligaments struggle to support the weight of the skull. DMX performed in an upright position clearly shows the laxity.

Can neck problems cause brain fog, chronic fatigue, or ringing in my ears?

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Yes. Instability can disrupt cerebrospinal fluid and blood flow (contributing to brain fog and fatigue) or irritate nerves connected to the inner ear (tinnitus that changes with neck position). DMX often reveals the hidden mechanical cause when other tests are normal.

I have heart palpitations, anxiety-like symptoms, or swallowing issues — could it be my neck?

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Yes. Upper cervical instability can irritate the vagus nerve (causing palpitations or “anxiety” sensations) or affect structures in the throat (swallowing difficulty or lump sensation). Symptoms that change with head position are a strong clue.

My neck pops/cracks constantly or hurts after a car accident. Is this serious?

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Frequent popping or cracking often indicates ligament laxity allowing excessive motion. Post-whiplash instability is frequently missed on static imaging but shows clearly on DMX. Early detection can help prevent worsening symptoms.

Still have questions?

Our team is ready to give you clear answers and help you decide if DMX is right for you.

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