Table 1. Information on scanners, head coils (same across MRI modalities) and MRI individual's datasets counts for each collection included in the primary ABIDE II collections (i.e., datasets collected in a given institution from individuals not included in ABIDE I) and in the longitudinal pilot collections (i.e., data from the same individuals scanned twice: Time 1 data originally released in ABIDE I and Time 2 data released in ABIDE II).
| Data collection |
MRI scanner
|
Head coil |
R-fMRI
|
High res MRI
|
DWI
*
|
|||||
|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Model | T | # channels | ASD | Contr | ASD | Contr | ASD | Contr | |
|
Primary Cross Sectional Aggregate
|
||||||||||
| ABIDEII-BNI_1 | Philips | Ingenia | 3 | 15 | 29 | 29 | 29 | 29 | 29 | 29 |
| ABIDEII-EMC_1 | GE | MR750 | 3 | 8 | 27 | 27 | 27 | 27 | 0 | 0 |
| ABIDEII-ETH_1 | Philips | Achieva | 3 | 32 | 13 | 24 | 13 | 24 | 0 | 0 |
| ABIDEII-GU_1 | Siemens | TriTim | 3 | 12 | 51 | 55 | 51 | 55 | 0 | 0 |
| ABIDEII-IU_1 | Siemens | TriTim | 3 | 32 | 20 | 20 | 20 | 20 | 0 | 0 |
| ABIDEII-IP_1 | Philips | Achieva | 1.5 | 8 | 22 | 33 † | 22 | 34 | 21 | 32 |
| ABIDEII-KKI_1 | Philips | Achieva | 3 | 8 ‡ | 56 | 155 | 56 | 155 | 0 | 0 |
| ABIDEII-KUL_3 | Philips | Achieva Ds | 3 | 32 | 28 | 0 | 28 | 0 | 0 | 0 |
| ABIDEII-NYU_1 | Siemens | Allegra | 3 | 8 | 48 | 30 | 48 | 30 | 33 | 24 |
| ABIDEII-NYU_2 | Siemens | Allegra | 3 | 8 | 27 | 0 | 27 | 0 | 19 | 0 |
| ABIDEII-ONRC_2 | Siemens | Skyra | 3 | 32 | 24 | 35 | 24 | 35 | 0 | 0 |
| ABIDEII-OHSU_1 | Siemens | TriTim | 3 | 12 | 37 | 56 | 37 | 56 | 0 | 0 |
| ABIDEII-SDSU_1 § | GE | MR750 | 3 | 8 | 33 | 25 | 33 | 25 | 33 | 24 |
| ABIDEII-TCD_1 | Philips | Achieva | 3 | 8 | 21 | 21 | 21 | 21 | 20 | 20 |
| ABIDEII-UCD_1 | Siemens | TriTim | 3 | 32 | 18 | 14 | 18 | 14 | 0 | 0 |
| ABIDEII-UCLA_1 | Siemens | TriTim | 3 | 12 | 16 | 16 | 16 | 16 | 0 | 0 |
| ABIDEII-USM_1 | Siemens | TriTim | 3 | 12 | 17 | 16 | 17 | 16 | 0 | 0 |
| Total N |
487 | 523 | 487 | 557 | 155 | 129 | ||||
|
|
||||||||||
|
Pilot Longitudinal Aggregate
|
||||||||||
| UCLA_Long | Siemens | TriTim | 3 | 12 | 9 | 8 | 14 | 7 | NA | NA |
| UPSM_Long | Siemens | Allegra | 3 | 8 | 14 | 7 | 9 | 8 | NA | NA |
| Total N | 23 | 15 | 23 | 15 | — | — | ||||
*For longitudinal collections Diffusion Weighted Imaging (DWI) data were not included ABIDE I, thus are not applicable (NA) here.
† For IP one individual ID only has sMRI available.
‡ For KKI_1 an 8-channel head coil was used for n=149 datasets and a 32-channel head coil was used for n=62 datasets—a list of the IDs with the corresponding head coil is provided in the ABIDE II website page for this collection under ‘Additional scan Information’.
§ SDSU also includes field maps corresponding to the R-fMRI and all DTI datasets but two. ASD, Autism Spectrum Disorder; Contr, Controls; GE, General Electrics; High res MRI, High Resolution Magnetic Resonance Imaging; Res, Resolution; R-fMRI, Resting-state functional MRI; T, Tesla; #, number. Also See Supplementary Table 1 for a list of the institutions/investigators.