The pinwheel sign: Artifact from head rotation during SPECT acquisition for dopamine transporter imaging

Amy K. Janicek, Ryan J. Avery, Phillip H Kuo

Research output: Contribution to journalArticle

4 Scopus citations


This case study illustrates the pattern and significance of the pinwheel sign, a SPECT artifact from rotational head motion that can complicate the diagnosis of Parkinson disease. Monitoring the patient during image acquisition is crucial since rotational motion artifacts are difficult to identify on raw or processed images and may lead to incorrect interpretation of findings.

Original languageEnglish (US)
Pages (from-to)75-76
Number of pages2
JournalJournal of Nuclear Medicine Technology
Issue number1
Publication statusPublished - 2014



  • Artifact
  • DAT scan
  • Neurology
  • Parkinson's disease
  • Quality assurance

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

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