Journal: Data in Brief

Article Title: A dataset of multiresolution functional brain parcellations in an elderly population with no or mild cognitive impairment

doi: 10.1016/j.dib.2016.11.036

Figure Lengend Snippet:

Article Snippet: All resting-state fMRI and structural scans were acquired on Philips and Siemens 3 T scanners.

Techniques: Functional Assay

Journal: Neuroinformatics

Article Title: Solving the Pervasive Problem of Protocol Non-Compliance in MRI using an Open-Source tool mrQA

doi: 10.1007/s12021-024-09668-4

Figure Lengend Snippet: The table summarizes the compliance report for DICOM images from ABCD-baseline FastTrack Active series. For each of the modality i.e. , T1w, T2w, DTI, rsfMRI and field maps (fmap), the table shows the vendor, the percentage of non-compliant & compliant subjects, and the parameters which were found to be non-compliant i.e. Repetition Time (TR), Echo Time (TE), Flip Angle (FA) and Pixel Bandwidth (PB). Some minor cases were observed in Phase Encoding Direction (PED), Phase Encoding Steps (PES), Echo Train Length (ETL), and Shim. In contrast to scans acquired with Philips and GE, images scanned with Siemens exhibit minimal non-compliance across all the modalities. Ensuring compliance in acquisition parameters manually is non-trivial for large-scale multi-site datasets such as ABCD. Automated tools like mrQA can help researchers achieve protocol compliance in a practical manner

Article Snippet: resting-state fMRI , Siemens , 2372 , 40.34 % , 5880 , iPAT , 3508 , 59.65 %.

Techniques: Diffusion-based Assay

Journal: Neuroinformatics

Article Title: Solving the Pervasive Problem of Protocol Non-Compliance in MRI using an Open-Source tool mrQA

doi: 10.1007/s12021-024-09668-4

Figure Lengend Snippet: The violin plot shows the variance in Flip Angle(FA) and Pixel Bandwidth (PB) for Diffusion (above) and fMRI (below) field maps in the ABCD Dataset. Siemens and Philips scanners had distinct fieldmaps each annotated with a PED ( AP / PA ). However, sequences from GE scanners (denoted by cyan ) were not annotated in the ABCD dataset. In contrast to scans from Philips and GE scanners, MR scans from Siemens have consistent acquisition parameters across both diffusion and fMRI field maps

Article Snippet: resting-state fMRI , Siemens , 2372 , 40.34 % , 5880 , iPAT , 3508 , 59.65 %.

Techniques: Diffusion-based Assay