N-acetylaspartate (NAA) peak

Dr Craig Hacking and A.Prof Frank Gaillard et al.

N-acetylaspartate (NAA) is one of the more important compounds assessed on MR spectroscopy, and resonates at 2.0 ppm chemical shift. 

NAA is the acetylated form of the amino acid, aspartate, which is found in high concentrations in neurons and is a marker of neuronal viability. It is therefore reduced in any process that destroys neurons, such as high grade tumours, radionecrosis, non-neuronal tumours (e.g. cerebral metastases and primary CNS lymphoma).

MR spectroscopy
Share article

Article information

rID: 27827
Section: Physics
Tag: stub, refs
Synonyms or Alternate Spellings:
  • N-acetylaspartate peak
  • N-acetylaspartate (NAA)
  • NAA

Support Radiopaedia and see fewer ads

Updating… Please wait.

Alert accept

Error Unable to process the form. Check for errors and try again.

Alert accept Thank you for updating your details.