Normal Imaging
CT and MRI show structure. They usually can't measure how the balance, hearing and cognitive systems function.
For Attorneys
Objective Evidence for Invisible Injuries
When symptoms persist after trauma but imaging is normal, physician-led testing can document what's really going on and give you a stronger foundation to evaluate, negotiate and present the case.
The Challenge
Bridging the Gap Between Symptoms and Evidence
Real injuries are often invisible on imaging. Here is where cases get stuck:
Persistent Symptoms
Dizziness, tinnitus, hearing changes and brain fog are real, and are frequently dismissed as subjective.
“No Objective Findings”
Without measurable data, the defense narrative can dominate. Objective testing replaces assumptions with findings.
Who to Refer
Consider NTDI When Symptoms Persist
Consider referral for clients with a history of head injury and one or more of the following:
Hearing & Ear-Related
- Hearing loss
- Ringing in the ears (tinnitus)
- Other tinnitus sounds: buzzing, humming, roaring, clicking or pulsatile
- Ear pain
- Ear fullness or pressure
- Ear drainage
- Sensitivity to loud sounds
- Difficulty understanding speech
- Difficulty hearing in background noise
- Muffled hearing
- Distorted hearing
Balance, Dizziness & Vestibular
- Dizziness
- Vertigo
- Lightheadedness
- Imbalance
- Feeling unsteady
- Motion sensitivity
- Positionally related dizziness
- Rocking or swaying sensation
- Floating sensation
- Falls
- Headache with dizziness
- Nausea and/or vomiting with dizziness
- Difficulty focusing vision during movement
- Eye beating (nystagmus)
- Other visual disturbance with dizziness
- Sensitivity to bright lights
Cognitive & Post-Concussive
- Confusion
- Brain fog
- Memory difficulties
- Difficulty concentrating
- Fatigue
When symptoms persist after trauma, especially with normal imaging, timely physician-led evaluation can document abnormalities routine imaging may miss. Not sure? Call us and we'll help you decide.
What We Evaluate
One Patient. One Location. A Clearer Understanding.
Vestibular & Balance
Documents inner-ear and balance-system dysfunction behind dizziness, vertigo and unsteadiness.
- Videonystagmography (VNG)
- Posturography
- VEMP
- Oculomotor testing
Hearing
Measures the type and degree of hearing loss, tinnitus-related changes and inner-ear function.
- Audiometry
- Otoacoustic emissions (OAE)
- Electrodiagnostics (ABR, ECoG)
Cognitive
Measures thinking skills against normative data to document post-concussive changes.
- Attention
- Memory
- Processing speed
- Executive function
Integrated Analysis
Brings every result together into one physician-led clinical picture.
- Physician-led interpretation
- Clinical correlation
- Functional implications
What You Receive
Clear. Organized. Attorney-Ready.
The full technical report stays in the medical record. On top of it, you receive a one-page, plain-English clinical summary, so you can find the clinical story fast without losing the underlying data.
- Plain-English attorney summary
- Key objective findings by domain
- Clinical interpretation
- Causation opinion (when appropriate)
- Recommendations
- Full technical data for review, deposition and trial
Illustrative composite example
Attorney Medical-Legal Summary
Objective findings following reported head trauma
What happened
Rear-end collision. CT and MRI read as normal. Persistent dizziness, imbalance, tinnitus and memory complaints.
What we tested
VNG, VEMP, posturography, audiology, oculomotor and cognitive testing.
What we found
28% left vestibular weakness · Balance at the 1st percentile · Abnormal saccades and smooth pursuit.
What it means
Reduced balance-system response from the left inner ear, extremely poor balance compared with the reference population, and abnormal eye tracking.
Clinical significance of objective findings
Objective evidence supporting the reported symptoms and functional limitations, considered together with the injury history, records and treating physicians' opinions.
Next steps
Recommendations for treatment, monitoring and follow-up testing.
Flexible Payment
50% Lien-Based Payment
NTDI accepts 50% of testing fees on a lien basis, so cost doesn't stand between your client and objective documentation.
Contact our office to confirm terms for a specific case.
50%Of testing fees accepted on a lien basis
Why It Matters
Objective Findings Help Clarify the Injury
Document hidden deficits
Capture deficits not visible on routine imaging.
Substantiate symptoms
Support reported symptoms with measurable data.
Clarify severity
Clarify the type and severity of dysfunction.
Separate conditions
Help distinguish between overlapping conditions.
Set a baseline
Provide a baseline for treatment and monitoring.
The Referral Process
We Make It Simple
01
Contact Us
Call or email our office.
02
Schedule
We coordinate directly with your office and your client.
03
Evaluate
Comprehensive testing at our San Antonio location: one visit, one place.
04
Receive Report
An attorney-ready clinical summary plus the full technical data.
FAQ
Attorney Questions
For Attorneys
01What documentation do attorneys receive?
A plain-English clinical summary organized by domain, the physician's interpretation and recommendations, a causation opinion when appropriate, and the full technical data for review, deposition and trial.
02Do you accept liens?
Yes. NTDI accepts 50% of testing fees on a lien basis. Contact our office to confirm terms for a specific case.
03How do I refer a client?
Call or email our office. We coordinate scheduling directly with your office and your client.
04My client's MRI and CT were normal. Is testing still worthwhile?
Often, yes. Routine imaging shows structure; it usually can't measure how the balance, hearing and cognitive systems function. Functional testing can document abnormalities that imaging does not show.
05Is Dr. Jackson available for expert testimony?
Yes. Dr. Jackson provides medical record review with expert opinion, deposition and trial testimony, and IME support, subject to scheduling.
06How quickly will I receive the report?
Typical turnaround is [X business days] after testing is complete. Preliminary findings can often be shared sooner.
07Do you work with both plaintiff and defense counsel?
Yes. NTDI's role is objective clinical evaluation. Findings are reported as measured, whichever side makes the referral.
Have a Client Who Needs Answers?
Reach our team in minutes. We'll coordinate the rest.