Simultaneous trimodal PET-MR-EEG imaging: Do EEG caps generate artefacts in PET images?

• DOI: 10.1371/journal.pone.0184743
• Publication Date: 2017-09-13T13:34:42Z
• Authors: Ravichandran Rajk...; Elena Rota Kops; Jörg Mauler; Lutz Tellmann; Christoph Lerche; Hans Herzog; N. Jon Shah; Irene Neuner
• Keywords: Correction for attenuation; Artifact (error); Modality (human–computer interaction); EEG-fMRI

Trimodal simultaneous acquisition of positron emission tomography (PET), magnetic resonance imaging (MRI), and electroencephalography (EEG) has become feasible due to the development hybrid PET-MR scanners. To capture temporal dynamics neuronal activation on a millisecond-by-millisecond basis, an EEG system is appended quantitative high resolution modality already established in our institute. One major difficulties associated with trimodal that components traditionally used each can cause interferences its counterpart. The mutual MRI PET MR images, influence electrodes functional images have been studied reported on. Building this, this study aims investigate cap quality quantification acquired during measurements. A preliminary transmission scan ECAT HR+ scanner, using Iida phantom, showed visible attenuation effect cap. BrainPET-MR phantom [18F]Fluordeoxyglucose, as well human subjects cap, did not show significant effects even though applied correction take into account itself.