Dizziness is a common symptom that can be caused by a variety of conditions, ranging from benign to serious. It is often described as a feeling of lightheadedness, unsteadiness, or vertigo. When someone experiences dizziness, they may wonder if they should seek medical attention and get an MRI imaging to rule out any serious underlying conditions. In this blog post, we will explore whether getting an MRI imaging is necessary when feeling dizzy.
When is it necessary to get an MRI imaging for dizziness?
Dizziness can be caused by a variety of conditions, ranging from benign to serious. Some of the more common causes of dizziness include dehydration, low blood pressure, and inner ear disorders such as benign paroxysmal positional vertigo (BPPV). In most cases, these conditions do not require an MRI imaging and can be managed with simple interventions such as hydration or positional exercises.
However, in some cases, dizziness can be a symptom of a more serious underlying condition such as a stroke, brain tumor, or multiple sclerosis. In these cases, an MRI imaging may be necessary to rule out or diagnose the underlying condition.
According to a review article published in the Journal of Neurology, Neurosurgery, and Psychiatry, imaging tests such as MRI are recommended in cases of dizziness if there are certain "red flag" symptoms present.These symptoms include sudden onset of severe dizziness, dizziness related with loss of consciousness, and dizziness coupled with other neurological symptoms such as weakness or numbness. Furthermore, the American Academy of Neurology recommends that those who experience dizziness and other neurological symptoms or signs, such as cranial nerve abnormalities or ataxia, get an MRI.
When is an MRI for dizziness not necessary?
An MRI is not usually necessary in cases of dizziness. According to the American Academy of Otolaryngology-Head & Neck Surgery, imaging studies such as MRI are not typically recommended for the assessment of dizziness since they are unlikely to change the course of treatment.
Instead, a thorough history and physical examination are often sufficient to diagnose the cause of dizziness. During the examination, the healthcare provider may perform certain tests such as the Dix-Hallpike maneuver to diagnose conditions such as BPPV.
Additionally, certain blood tests may be ordered to check for underlying medical conditions such as anemia or thyroid dysfunction, which can also cause dizziness.
Risks and costs of getting an MRI imaging
While an MRI imaging is a useful diagnostic tool in certain cases of dizziness, there are risks and costs associated with the procedure. MRI imaging uses a strong magnetic field and radio waves to create detailed images of the body, which can be useful in detecting certain conditions.
However, there are risks associated with the procedure, including the potential for allergic reactions to the contrast material, claustrophobia, and interference with certain medical devices such as pacemakers.
Additionally, MRI imaging can be expensive, with costs ranging from a few hundred to several thousand dollars depending on the location and type of imaging performed. Depending on insurance coverage, the out-of-pocket costs for an MRI imaging can be high.
In conclusion, obtaining an MRI for dizziness is not always essential. A comprehensive history and physical examination can usually establish the cause of dizziness, and simple therapies like water or postural exercises can help control the symptoms.
However, in situations when "red flag" symptoms or other neurological symptoms or indications are present, an MRI imaging may be required to rule out significant underlying disorders.