 of LBD.
- Neuropsychological tests—These tests are used to assess memory and other cognitive functions and can help identify affected brain regions.
There are no brain scans or medical tests that can definitively diagnose LBD. Currently, LBD can be diagnosed with certainty only by a brain autopsy after death.
However, researchers are studying ways to diagnose LBD more accurately in the living brain. Certain types of neuroimaging—positron emission tomography and SPECT—have shown promise in detecting differences between dementia with Lewy bodies and Alzheimer’s disease. These methods may help diagnose certain features of the disorder, such as dopamine deficiencies. Researchers are also investigating the use of lumbar puncture (spinal tap) to measure proteins in cerebrospinal fluid that might distinguish dementia with Lewy bodies from Alzheimer’s disease and other brain disorders.
Other Helpful Information
It is important for the patient and a close family member or friend to tell the doctor about any symptoms involving thinking, movement, sleep, behavior, or mood. Also, discuss other health problems and provide a list of all current medications, including prescriptions, over-the-counter drugs, vitamins, and supplements. Certain medications can worsen LBD symptoms.
Caregivers may be reluctant to talk about a person’s symptoms when that person is present. Ask to speak with the doctor privately if necessary. The more information a doctor has, the more accurate a diagnosis can be.
Publication Date: September 2013
Page Last Updated: March 21, 2014