Table 3 MRI datasets and acquisition parameters by institution.
From: Attention-guided deep learning for gestational age prediction using fetal brain MRI
Institution | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Stanford | CHLA | CCHMC | SJH | TTRH | |||||
No. of subjects | 741 | 156 | 64 | 25 | 189 | ||||
Median GA (range), wks | 30.6 (19–39) | 30.6 (20–40) | 24.6 (16–39) | 28.7 (19–36) | 26.1 (18–40) | ||||
Field strength | 1.5 T, 3 T | 1.5 T, 3 T | 1.5 T | 1.5 T, 3 T | 1.5 T | ||||
Manufacturer and Scanner | GE Discovery 750 W, Optima 450 W, Signa HDxt & Excite | Philips Ingenia & Achieva | GE Signa HDxt Philips Ingenia | GE Signa HDxt & Excite | Siemens Magnetom Aero & Avanto | ||||
Sequence | ssFSE | ssTSE | ssFSE, ssTSE, bTFE, FIESTA | ssFSE, FIESTA | HASTE, TRUFI | ||||
Repetition time, ms | 600–6,000 | 750–2625 | 12,500–15,000 | 3–5 | 4000 | 4.6–4.9 | 1,300–2,300 | 3.6–5.0 | 1200–1700 |
Echo time, ms | 67–420 | 70–120 | 90–120 | 1.5–2.3 | 80–120 | 1.9–2.1 | 78–93 | 1.4–2.0 | 104–198 |
Flip angle | 90° | 90° | 75°–110° | 75°, 90° | 62°–180° | ||||
Field of view, mm | 180 × 180–440 × 440 | 160 × 160–450 × 450 | 240 × 240–380 × 380 | 240 × 240–340 × 340 | 129 × 187–380 × 380 | ||||
In-plane resolution | 0.35 × 0.35–1.57 × 1.57 | 0.48 × 0.48–1.28 × 1.28 | 0.55 × 0.55–1.37 × 1.37 | 0.46 × 0.46–0.67 × 0.67 | 0.37 × 0.37–1.66 × 1.66 | ||||
Median no. of slices (range) | 23 (7–48) | 44 (20–100) | 20 (5–53) | 22 (14–47) | 26 (10–84) | ||||
Median slice thickness (range), mm | 4 (2–5) | 3 (2.5–5.5) | 4 (3–6) | 4 (4–5) | 4 (3–5) | ||||
