Clinical and [99mTc]TRODAT-1/[123I]IBZM SPECT imaging findings in dopa-responsive dystonia

Wen Juh Hwang*, Wei Jen Yao, Shiaw Pyng Wey, Gann Ting

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

5 Scopus citations


We report the clinical and dopamine transporter/D2 receptor single-photon emission computed tomographic (SPECT) imaging findings in a 39-year-old woman with a 24-year history of dopa-responsive dystonia (DRD). The SPECT imaging of the dopamine transporter with [99mTc]TRODAT-1 is helpful in differentiating DRD from early-onset idiopathic parkinsonism. In the later clinical course, the [123I]IBZM SPECT is also helpful in differentiating these two conditions. The patient showed a dramatic and sustained response to levodopa, and needed a smaller dose of levodopa for symptom control in the later course.

Original languageEnglish
Pages (from-to)26-29
Number of pages4
JournalEuropean Neurology
Issue number1
StatePublished - 2004
Externally publishedYes


  • Dopa-responsive dystonia
  • Early-onset idiopathic parkinsonism


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