Quote:
Originally Posted by Debi Brooks
DaTSCAN is not diagnostic. It cannot differentiate PD from other atypical parkinsonisms (PSP, MSA, etc.), so it has only been used as a supportive criterion along with a clinical exam, especially in younger patients.
DaTSCAN is sometime used to differentiate other forms of tremor from tremor-dominant PD, especially if they don’t respond to levodopa. In general, if a patient does not respond to levodopa (up to 600mg/day for at least 14 days), most likely the condition is NOT Parkinson’s and diagnosis might need to be reconsidered.
Hope this is helpful.
Debi
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Hope you noticed the link I gave to your website.