MRI plays a vital role in how we diagnose and monitor MS. In fact, over 90% of people have their MS diagnosis confirmed by MRI.
Magnetic resonance imaging, or MRI, is a wonderful tool to help diagnose and follow people with MS. MRI is safe and relatively non-invasive yet can provide very detailed images of the brain and spinal cord that can reveal MS lesions (also known as demyelination, spots, or plaques) and changes in MS activity over time.
MRI has greater than 90% sensitivity in the diagnosis of MS; however, other white matter diseases can sometimes have a similar appearance on medical imaging.
MRI is considered the best test to help diagnose MS. However, 5% of people with MS do not have abnormalities detected on MRI; thus, a "negative" scan does not completely rule out MS. In addition, some common changes of aging may look like MS on a MRI. To track the progress of disease.
MS activity appears on an MRI scan as either bright or dark spots. Typical MS lesions tend to be oval or frame shaped. MS lesions can appear in both the brain's white and gray matter. Healthcare professionals may use a chemical contrast dye called gadolinium to improve the brightness of MRI scan images.
People should consider the diagnosis of MS if they have one or more of these symptoms: vision loss in one or both eyes. acute paralysis in the legs or along one side of the body. acute numbness and tingling in a limb.
Magnetic resonance imaging (MRI)
It's very accurate and can pinpoint the exact location and size of any inflammation, damage or scarring (lesions). MRI scans confirm a diagnosis in over 90 per cent of people with MS.
There are no specific tests for MS . Instead, a diagnosis of multiple sclerosis often relies on ruling out other conditions that might produce similar signs and symptoms, known as a differential diagnosis. Your doctor is likely to start with a thorough medical history and examination.
A wide range of conditions can be mistaken for MS, including: migraine, cerebral small vessel disease, fibromyalgia, functional neurological disorders, and neuromyelitis optica spectrum disorders, along with uncommon inflammatory, infectious and metabolic conditions (1, 3).
While there is no definitive blood test for MS, blood tests can rule out other conditions that cause symptoms similar to those of MS, including lupus erythematosis, Sjogren's, vitamin and mineral deficiencies, some infections, and rare hereditary diseases.
Here's where MS (typically) starts
Although a number of MS symptoms can appear early on, two stand out as occurring more often than others: Optic neuritis, or inflammation of the optic nerve, is usually the most common, Shoemaker says. You may experience eye pain, blurred vision and headache.
One of the more obvious first signs of MS is a problem with vision, known as optic neuritis. This is often because it's a more concrete symptom as opposed to vaguer neurological symptoms like numbness and tingling.
Diagnosing MS is complicated because no single test can positively diagnose it. Other possible causes of your symptoms may need to be ruled out first. It may also not be possible to confirm a diagnosis if you have had only 1 attack of MS-like symptoms.
Normal brain MRI is found in only 5% of MS patients using modern techniques. Half of such patients in one series consisted of patients with primary progressive disease, the majority of whom were severely disabled. In relapsing remitting disease normal imaging was associated with early or mild disease.
If you have MS and it's early in the disease course, you might not have tested positive in all the MS tests. In fact, you might not have tested positive in any of the tests.
These include fibromyalgia and vitamin B12 deficiency, muscular dystrophy (MD), amyotrophic lateral sclerosis (ALS or Lou Gehrig's disease), migraine, hypo-thyroidism, hypertension, Beçhets, Arnold-Chiari deformity, and mitochondrial disorders, although your neurologist can usually rule them out quite easily.
There are also multiple infectious entities that mimic MS including; progressive multi-focal leukoencephalopathy (PML), Toxoplasmosis, Tuberculosis, Herpes Simplex Virus, Cytomegalovirus, Varicella zoster virus, Epstein Barr virus, Cryptococcus and Human immunodeficiency virus.
Those symptoms include loss of vision in an eye, loss of power in an arm or leg or a rising sense of numbness in the legs. Other common symptoms associated with MS include spasms, fatigue, depression, incontinence issues, sexual dysfunction, and walking difficulties.
People may experience blurred vision, double vision, eye pain or loss of color vision. Difficulty articulating words or swallowing and slurred speech may occur if there's damage to the area that controls the mouth and throat.
Diagnosis and early intervention
As optic neuritis is the presenting sign of MS in up to 30 percent of patients, the eye exam can lead to the initial systemic diagnosis.
Lesions may be observed anywhere in the CNS white matter, including the supratentorium, infratentorium, and spinal cord; however, more typical locations for MS lesions include the periventricular white matter, brainstem, cerebellum, and spinal cord.
Early signs and symptoms of MS
tingling and numbness. pains and spasms. weakness or fatigue. balance problems or dizziness.