. Author manuscript; available in PMC: 2021 Jul 1.

Published in final edited form as: Magn Reson Med. 2019 Dec 1;84(1):312–320. doi: 10.1002/mrm.28114

TABLE 1.

Sequence parameters implemented for each ventilation scan

	2D GRE (comparison)	3D radial (comparison)	FLORET (comparison)	FLORET (fully sampled)
Resolution (mm)	3.00 × 3.00 × 8.82 (79 mm³)	4.41 × 4.41 × 4.41 (86 mm³)	3.00 × 3.00 × 3.00 (27 mm³)	3.26 × 3.26 × 3.26 (35 mm³)
FOV (mm)	300 × 300 × 300	300 × 300 × 300	300 × 300 × 300	300 × 300 × 300
Matrix size	100 × 100 × 34	68 × 68 × 68	100 × 100 × 100	92 × 92 × 92
Effective excitations (N_ex)	63	3600	1088	612
Encoding method	Phase: −k_y to +k_y Slice: head to foot	Ten-interleave Archimedean spiral	Two-hub minimal angular difference¹⁸	Two-hub minimal angular difference¹⁸
Flip angle	10.1°	1.4°	2.5°	3.3°
TE (ms)	1.98	0.149	0.118	0.118
Dwell time (us)	31.5	31.6	7.3	7.4
Readout (ms)	3.93	2.18	7.78	19.0
TR (ms)	6.70	4.08	10.0	21.2
Scan duration (seconds)	15.7	15.5	12.5	14.5