Review
Copyright ©2014 Baishideng Publishing Group Inc.
World J Radiol. Aug 28, 2014; 6(8): 589-597
Published online Aug 28, 2014. doi: 10.4329/wjr.v6.i8.589
Table 2 Main strength and limits of the different techniques
TechniqueStrenghtLimits
PETRelatively direct measure of brain activityIonizing, radioactive tracer, low spatial and temporal resolution expensive
MRINo use of ionizing. Permits both high resolution study of structural brain (DTI) and fMRI employing active, passive and resting state paradigmsIndirect measure of brain activity (functional) Sensitive to movement and artifacts, impractical (application precluded in patients with contraindication), expensive
TMS-EEGPractical (no important contraindications) gives information at single subject levelSensitive to muscle artifacts