A dual-stage partially interpretable neural network for joint suppression of bSSFP banding and flow artifacts in non-phase-cycled cine imaging

Table 1 Acquisition parameters for each dataset

Key characteristics	Baseline dataset	Generalization dataset				Clinical dataset
Key characteristics	Baseline parameters	Altered bandwidth	Altered flip angle	Altered slice thickness	Altered views	A different scanner
Type of subjects	Healthy subjects	Healthy subjects	Healthy subjects	Healthy subjects	Healthy subjects	Patients
Number of subjects	28	11	11	11	11	77
View	Sax	SAx	SAx	SAx	2-ch, 4-ch	Sax, 2-ch, 4-ch
FOV (RO × PE, mm)	360 × 320	360 × 320	360 × 320	360 × 320	360 × 320	360 × 320 or 380 × 340
Matrix size (RO × PE)	336 × 298	336 × 298	336 × 298	336 × 298	336 × 298	336 × 298 or 336 × 300
Number of slices	3	1	1	1	1, 1^a	9–15, 1, 1^b
Slice thickness (mm)	8	8	8	5	8	8
Number of cardiac phases	25	25	25	25	25	25
TR (msec)	2.86 or 2.98	3.62 or 3.71	2.86 or 2.98	3.15 or 3.17	2.86 or 2.98	3.03–3.10
TE (msec)	1.31 or 1.37	1.60 or 1.66	1.31 or 1.37	1.46 or 1.44	1.31 or 1.37	1.42–1.46
Bandwidth (Hz/pixel)	1000	500	1000	1000	1000	1000
Flip angle (°)	60	60	30	60	60	44–60
Frequency offsets (Hz)	± 137.5, ± 110, ± 82.5, ± 55, ± 27.5, 0, 165	0, 55, 110, 165	0, 55, 110, 165	0, 55, 110, 165	0, 55, 110, 165	0
Total number of movies	1008	44	44	44	44, 44	905, 77, 77

Sax, short-axis; 2-ch, 2-chamber; 4-ch, 4-chamber; TR, repetition time; TE, echo time; RO, readout; PE, phase-encoding
^a1,1 indicates the number of slices for 2-ch and 4-ch is 1 and 1, respectively
^b9–15,1,1 indicates the number of slices for short-axis, 2-ch and 4-ch is 9–15, 1 and 1, respectively

ISSN: 1532-429X