Do Traditional MRIs Miss Concussions? The "Invisible Illness"
Estimated Reading Time: 6-7 minutes
TL;DR
Mild Traumatic Brain Injuries (mTBIs), concussion, and post-concussion syndrome are undetectable on standard MRIs, leaving personal injury claims hard to objectively prove and defend. Traditionally, a diagnosis of concussion is made just by an assessment from an experienced neurologic medical provider. In the setting of personal injury, though, we realize having objective data becomes important in proving that patients do have a concussion- often called the “invisible illness.” By utilizing objective diagnostics like videonystagmography/videooculography (VNG/VOG) and MRI with diffusion tensor technology (MRI with DTI), modern neurology provides undeniable, quantifiable data. This evidence-based approach is transforming post-traumatic concussion care and validating true injuries.
Key Takeaways
The Diagnostic Gap: Discover why standard CT and MRI scans fail to detect microscopic brain injuries like mTBIs, concussion, and post-concussion syndrome.
Objective Evidence: Understand how advanced testing technologies, including VNG/VOG and MRI with DTI, provide evidence of brain network disruption.
The "Invisible" Injury: The Frustration of an "Unremarkable" MRI
When a client or patient suffers a head injury classified as a mTBI or concussion, the immediate protocol usually involves a trip to the emergency room for a CT scan or an MRI. In the vast majority of these cases, the imaging results come back with a frustrating medical term: "unremarkable." To the patient, who is struggling with severe dizziness, brain fog, and chronic headaches, this word feels like a dismissal. To the personal injury attorney or case manager representing them, a "normal" scan is a massive hurdle.
But why does this happen? The core issue lies in the limitations of traditional imaging technology. Standard MRIs and CT scans are incredibly effective at identifying macroscopic, structural damage. They are designed to look for life-threatening issues such as skull fractures, large tumors, or significant brain bleeds (hemorrhages), and this is exactly why they are done in the ER- to rule out more severe brain injury.
However, they are simply not designed to detect the microscopic, functional damage that occurs during a concussion. To better understand this, consider the analogy of a dropped smartphone. If you take a photograph of a dropped phone, the glass screen and outer casing might look perfectly intact; this is exactly what a clear MRI shows. But when you try to open an app, the phone freezes, crashes, or lags. The hardware looks fine to the naked eye, but the software and internal processing networks are deeply disrupted.
An mTBI/concussion works in the same way. During a motor vehicle accident or a severe fall, the brain undergoes rapid acceleration and deceleration. It bounces or twists inside the skull, whether or not the patient hits their head. This causes a condition known as diffuse axonal injury. The brain’s physical structure appears unharmed on a standard MRI, but its communication networks, the neural pathways, have been torn or stretched. Now that information highways in the brain are disturbed, patients may present with delayed eye movements, cognitive and mental health issues, personality changes, headaches, dizziness or vertigo, balance impairments, sleep cycle issues- which can all be gathered together to describe post-concussion syndrome. Because this injury does not show up on a traditional scan, the trauma is often labeled as an "invisible injury," leaving the patient with (presumably!) no way to prove their symptoms. And as you can tell by the list above, those symptoms can be quite severe and life-altering.
Stepping into Modern Neurology with Objective Data
Luckily, other testing options can objectively show a concussion.
At Celeste Brain Health, we bridge this gap by utilizing advanced, functional diagnostic testing. Our number one goal is to treat the patient in an urgent, unbiased, and holistic way so they can return to their normal lives. To do this, in personal injury, we include the objective testing to support any concussion diagnosis, so this “invisible illness” becomes visible.
Two of the most powerful and effective objective tools we use are Videonystagmography (VNG) and Cognitive Assessment Battery (CAB) testing.
1. VNG/VOG (Videonystagmography/Videooculography)
The circuitry controlling eye movement is scattered all over the brain; therefore, the majority of patients who have a concussion will have some disruption or injury in the axons (part of the brain cell) that control eye movement. That makes testing eye movement with VNG/VOG one of the most reliable and sensitive tests for concussion.
VNG/VOG is a highly advanced, non-invasive diagnostic test. The patient wears specialized, infrared, high-tech goggles in a dark room. These goggles record microscopic eye movements (nystagmus) while the patient watches moving targets on a screen or undergoes positional changes.
If the brain’s neural pathways were sheared or injured in a whiplash event, the test will detect even slight delays in eye movement, gaze instability, or abnormal tracking patterns. Because these micro-movements are controlled by the autonomic nervous system, the patient cannot fake, force, or control them. This makes VNG data 100% objective.
2. MRI with Diffusion Tensor Imaging (DTI)
A common challenge in evaluating a debilitating mild traumatic brain injury (mTBI) is the reliance on a "normal" standard MRI or CT scan to determine if an injury exists. As described above, standard imaging is designed to spot macro-structural damage like bleeding or tumors, completely missing the microscopic cellular trauma caused by a concussion.
This is where Diffusion Tensor Imaging (DTI) changes the game. DTI is an advanced MRI technique that tracks the microscopic movement of water molecules along the brain’s white matter tracts (axons). In a patient without brain injury, this movement would look beautifully uniform. When a concussion occurs, the physical forces stretch and shear these delicate axons, disrupting that uniform flow, and the DTI can show this as evidence of axonal injury.
DTI transforms a seemingly "invisible" injury into objective proof. By measuring metrics such as Fractional Anisotropy (FA), DTI provides hard data and color-coded visual maps demonstrating precisely where the brain's neural architecture has been compromised. This effectively grounds the evaluation in peer-reviewed science, bridging the gap between a patient's subjective symptoms and clinical proof. Ultimately, utilizing DTI allows for a more accurate and scientifically rigorous evaluation of an mTBI, ensuring that the true extent of a structural injury is clearly understood by all parties involved.
The days of battling an "unremarkable" MRI as the final word on a traumatic brain injury are over. By embracing objective diagnostic testing, we can uncover the truth behind invisible injuries, and guide patients toward effective rehabilitation.
Frequently Asked Questions (FAQ)
-
Standard MRIs are designed to look large-scale damage, such as skull fractures, tumors, or brain bleeds. The injury of concussion involves the injury of microscopic brain cells, so it requires different testing to detect.
-
The VNG/VOG, which records eye movements, would record eye movements that are delayed, eyes that aren’t moving in concert, and involuntary eye movements. This reflects abnormalities in the brains eye movement circuitry, which in the setting of a recent head injury, reflects a diagnosis of concussion.
Are you a case manager, paralegal, or attorney handling complex traumatic brain injury cases?
Don't let “unremarkable imaging” derail your client’s concussion diagnosis. We have objective data to support real, evidence based, unbiased concussion diagnoses.
Want to stay updated on the latest breakthroughs in objective brain health and post-traumatic medical care?
Concussions can have lasting effects like headaches and dizziness. 🧠 The severity of the injury, past concussions, and age can influence the risk. Treatment includes therapies and medication to address various symptoms. 💊 Always wear a helmet and seek medical attention if you suspect a concussion. ⛑️
Did you know concussions can have lasting effects? 🧠 While most people recover quickly, some experience post-concussion syndrome with symptoms like headaches, dizziness, and memory problems. 🤕 Factors like the injury's severity, concussion history, age, and pre-existing conditions can increase the risk. Treatment options include cognitive rehab, therapy, medication, vestibular therapy, and pain management to address various symptoms. 💊 Always wear a helmet and seek medical attention after any head injury. ⛑️ Watch the full video for more information! 👍 Don't forget to like and subscribe.