by bkirwan | Jan 10, 2026 | Neuroimaging Facility
Overview We recently acquired a 3D EPI sequence developed by researchers at the German Center for Neurodegenerative Diseases (DZNE; Poser et al., 2010; Wang et al., 2022). This sequence allows for rapid whole-brain fMRI with high acceleration without the...
by bkirwan | Aug 7, 2025 | Neuroimaging Facility
I’ve updated the scripts for graphing our stability metrics using R rather than Matlab (thanks, ChatGPT!). Let me know what you think. One note, the change in scanning protocol to ensure the phantom was really in isocenter for the 64-channel coil tests is really...
by bkirwan | Jul 2, 2025 | Neuroimaging Facility
We’re very excited to introduce newly-designed MR-compatible cable clips for the Cima.X scanner. These clips are meant to be used with peripheral equipment such as button boxes, headphones, or squeeze-balls to keep the cables from getting caught when the MRI...
by bkirwan | Jun 17, 2025 | Neuroimaging Facility
Summary I’ve updated my stability scan summary code to bring all the measures into a single plot. Hopefully it’s not too busy. Details on stability scans below. My last post explained the bimodal distribution of the “Mean ghost” measure for the...
by bkirwan | Apr 22, 2025 | Neuroimaging Facility
In a previous post I described our procedure for stability scanning on our Siemens Cima.X scanner. Sharp-eyed readers may have noticed an oddity in our stability scanning summary, where the “Mean Ghost” measure seems to have a bimodal distribution,...
by bkirwan | Apr 8, 2025 | Neuroimaging Facility
Summary Weekly MRI quality assurance (QA) scans are performed with the 64-, 32-, and 20-channel head coils. Scan sequences are based on recommendations of Pyles et al. (see https://sites.google.com/view/mri-facility-qa) and stability measures are calculated using the...
