Magnetic resonance spectroscopic abnormalities in sporadic and variant Creutzfeldt-Jakob disease.

AIM

To study the proton MR spectroscopic findings in Creutzfeldt-Jakob disease (CJD) (sporadic and variant).

MATERIALS AND METHODS

MR imaging and proton MR spectra were acquired in two patients with sporadic CJD (biopsy proven) and one patient with variant CJD.

RESULTS

The two patients with sporadic CJD demonstrated MR signal change within the basal ganglia and thalami and reduced N-acetylaspartate (NAA):creatine ratios. The patient with variant CJD showed characteristic signal change within the pulvinar of the thalami and a markedly reduced N-acetylaspartate:creatine ratio.

CONCLUSION

All three patients with CJD demonstrated evidence of reduced N-acetylaspartate: creatine ratios on MR spectroscopy. These changes imply that neuronal loss and/or dysfunction is a consistent finding in established CJD.