Which imaging studies are performed in the workup of autism spectrum disorder (ASD)?

Updated: Sep 30, 2019
  • Author: James Robert Brasic, MD, MPH; Chief Editor: Caroly Pataki, MD  more...
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Answer

Neuroimaging studies

There is currently no clinical evidence to support the role of routine clinical neuroimaging in the diagnostic evaluation of autism, even in the presence of megalencephaly. [2] Although characteristic abnormalities have been identified, no single finding is diagnostic.

The following imaging techniques have yielded inconsistent results in evaluating autism:

  • MRI with or without diffusion tensor imaging

  • CT scanning

  • PET scanning

  • SPECT scanning

See Workup for more detail.


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