Aim of the examination: visualization of presynaptic D2 receptors

Indications: Differentiation of an essential tremor from so-called Parkinson's syndromes

Preparation for the examination:

• Please bring your current medication with you
• The following medications should be discontinued 4 weeks before the examination after consultation with the treating neurologist:
  • Amphetamines, cocaine, benzatropine (Cogentinol)
  • Bupropion (Zyban, Wellbutrin)
  • Methylphenidate (Ritalin)
  • Mazindol (Sanorex)
  • Phentermine as a sympathomimetic amine (Adipex, Fastin)
  • Sertraline as SSRI (Zoloft)

Procedure of the examination:

• Consultation with the doctor to explain any uncertainties regarding the examination
• Blockade of the thyroid gland with perchlorate (Irenat drops)
• Injection of the radiopharmaceutical after 30 minutes
• Acquisition of the images after approx. 3 hours
• Debriefing
• Findings are sent to the requesting doctor in writing as soon as possible

Radiopharmaceutical used: J-123-FP-CIT (DatScan)