Table 1.

Image acquisition parameters at different embryonic stages. All parameters are for a 3D GRE sequence with gradient spoiling on the readout axis, and refocused phase encode axes (but without RF spoiling).

Embryonic stage	E10.5	E12.5	E14.5
N (mice imaged)	6	5	7
Flip angle (°)	20	20	20
TR (ms)	50	50	50
TE (ms)	20	20	20
Acquisition matrix (min)	100 × 100 × 70	120 × 100 × 70	130 × 100 × 90
Acquisition matrix (max)	150 × 126 × 70	130 × 100 × 90	150 × 110 × 100
FOV (mm, min)	10.0 × 10.0 × 7.0	12.0 × 10.0 × 7.0	13.0 × 10.0 × 9.0
FOV (mm, max)	15.0 × 12.6 × 7.0	13.0 × 10.0 × 9.0	15.0 × 11.0 × 10.0
NVOL (min - max)	16 – 24	12 – 24	12 – 20
Resolution (μm)	100 × 100 × 100	100 × 100 × 100	100 × 100 × 100
TTOTAL (h, min)	1.5	1.9	1.9
TTOTAL (h, max)	3.3	3.3	3.2
TTOTAL (h, mean ± SD)	2.2 ± 0.7	2.5 ± 0.5	2.6 ± 0.6