Brain imaging can reveal unsuspected causes of your anxiety. Anxiety can be caused by many things, such as neurohormonal imbalances, post-traumatic stress syndrome, or head injuries. Brain scans can offer clues to potential root causes of your anxiety, which can help find the most effective treatment plan.
One of the foundational elements of MRI use for mental health diagnostics is neuromarkers. Neuromarkers are patterns or images on brain scans that scientists believe indicate certain activity, functionality or dysfunction within the brain.
In one study that used CT scans, damage to several subregions of the frontal lobe was associated with anxiety. Another study using MRI technology showed that social anxiety disorder was linked to thinning grey matter in cortical regions.
The Brain Scan
Well, the scan -- formally known in this case as a quantitative electroencephalogram -- is used to measure beta activity in the brain. When such brain activity is elevated, Dr. Serin explains, it can be an indicator of stress.
A brain MRI can help doctors look for conditions such as bleeding, swelling, problems with the way the brain developed, tumors, infections, inflammation, damage from an injury or a stroke, or problems with the blood vessels. The MRI also can help doctors look for causes of headaches or seizures.
This imaging process is used to assess brain damage from head injury or degenerative disorders such as Alzheimer's disease and to identify and monitor other neurological disorders, including multiple sclerosis, stroke, and brain tumors.
The most frequent findings are brain infarcts, followed by cerebral aneurysms and benign primary tumors. Such findings should be anticipated in the design of research protocols and the use of neuroimaging in clinical practice.
An MRI is considered the best way to diagnose stress fractures. It can visualize lower grade stress injuries (stress reactions) before an X-ray shows changes. This type of test is also better able to distinguish between stress fractures and soft tissue injuries.
Brain areas implicated in the stress response include the amygdala, hippocampus, and prefrontal cortex. Neurochemical systems, including Cortisol and norepinephrine, play a critical role in the stress response.
MRIs show common structural abnormalities among patients with depression and anxiety.
Since your neurologist said your symptoms were related to stress and anxiety, you can feel confident your diagnosis is accurate. Neurologists are trained to differentiate stress and anxiety-caused symptoms from those caused by real neurological conditions.
The amygdala is responsible for the expression of fear and aggression as well as species-specific defensive behavior, and it plays a role in the formation and retrieval of emotional and fear-related memories.
Brain scans and activation patterns can distinguish the difference between depression, neurodegenerative disorders and brain tumors. A tumor in the frontal lobe can cause apathy, which can be mistaken for depression.
The researchers found they could predict the subjects' self-reported emotions from the scans about 75 percent of the time. Not everyone agrees, however, that studying emotions this way—as averages of many people's brains while they undergo a stimulus—makes sense.
Head trauma—even mild head injuries that don't make you lose consciousness and aren't diagnosed as a concussion—are a major factor in the development of psychiatric illnesses, including anxiety disorders and panic disorder.
"Pathological anxiety and chronic stress are associated with structural degeneration and impaired functioning of the hippocampus and the prefrontal cortex (PFC), which may account for the increased risk of developing neuropsychiatric disorders, including depression and dementia," said Dr.
Many clinicians agree that anxiety causes movement artifact and incomplete processing during the MRI [15,16,17]. Prolonged and repeated MRI procedure result in decrease in the diagnostic value of MRI and deterioration of image quality.
Some patients occasionally experience a tingling sensation or feel hot from being in the MRI scanner. These effects only last a short while and should ease as soon as the scan is over. You're given a squeeze alarm which can alert the Radiographers if you have any concerns during your scan.
When your white matter becomes damaged, it causes white matter lesions, which healthcare providers can “see” as bright spots on magnetic resonance imaging (MRI) of your brain. Some white matter lesions may not cause noticeable symptoms and can be considered almost “normal” with aging.
A MRI scan typically takes approximately 20 to 30 minutes to perform. You will be asked to change into and wear an examination gown provided for you. As a strong magnet is used, all metallic devices MUST be removed before entering the MRI room.