Table 1 Demographics of all included patients from the Alzheimer’s Disease Neuroimaging Initiative (ADNI) as well as the analyzed subgroups
From: Impact of defacing on automated brain atrophy estimation
n | Females | Age | Study phase (ADNI 1/2/3) | Scannersa | GE/Philips/Siemens (1.5 T/3 T) | |
|---|---|---|---|---|---|---|
All AD patients | 268 | 141 (52.6%) | 67.7 ± 5.3 (55–74) | 29%/56%/15% | 95 | 38%/19%/43% (29%/71%) |
Unaccelerated imaging | 154 | 82 (53.2%) | 67.8 ± 5.1 (55–74) | 51%/49%/0% | 76 | 45%/16%/38% (51%/49%) |
Unaccelerated repeat imaging | 67 | 38 (56.7%) | 68.1 ± 5.0 (56–74) | 100%/0%/0% | 38 | 58%/6%/36% (100%/0%) |
Accelerated imaging | 114 | 59 (51.8%) | 67.6 ± 5.5 (55–74) | 0%/65%/35% | 56 | 28%/24%/48% (0%/100%) |