A CT scan (computed tomography scan) is not the best imaging technique for diagnosing multiple sclerosis (MS). CT scans use X-rays to produce images of the body, but they are not as sensitive or specific as other imaging techniques such as magnetic resonance imaging (MRI).
MRI is the preferred imaging technique for diagnosing MS because it is more sensitive and can detect smaller lesions or areas of inflammation in the brain and spinal cord. MS lesions often appear as bright spots on T2-weighted or fluid-attenuated inversion recovery (FLAIR) MRI sequences.
In some cases, a CT scan may be ordered to rule out other conditions that may mimic MS symptoms, such as a stroke or brain tumor. However, for diagnosing MS, MRI is the preferred imaging technique.
