Although there are some neurological disorders without definitive tests, complete medical history, diagnostic procedures and physical examinations help with the diagnoses of these disorders. The complexity of diagnosing these disorders lies in the fact that different neurological disorders sometimes present the same symptoms, according to Johns Hopkins Medicine.
Using diagnostic machines, images created expose details on the neurological disorders, affecting either the central nervous system or the peripheral nervous system. The central nervous system controls movement, speech, thought, behavior and vision. Even though X-ray imagery exists, doctors create better images using modern machines, such as CT scans, magnetic resonance imaging, arteriograms and ultrasounds, states Johns Hopkins Medicine.
CT scans combine X-ray technology with computer-generated imagery, which develops images of the bones, fat, muscles and organs. MRIs utilize computer imaging, magnets and radio frequencies, producing organ and structure images. Arteriograms yield X-ray images of blood vessels constricting and narrowing. Ultrasounds use sound waves for creating images of organs, tissues and blood vessels, and neurosonography uses sound waves for diagnosing blood flow during stroke episodes, says Johns Hopkins Medicine.
Electrodes record the brain’s electrical activity while a patient undergoes an electroencephalogram. Electromyography and nerve conduction velocity tests record muscle responses, as well as evoked potentials, states Johns Hopkins Medicine.