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Table 2 Acquisition parameters

From: Accelerated aortic 4D flow cardiovascular magnetic resonance using compressed sensing: applicability, validation and clinical integration

 

Healthy Subjects

Patients

Repetition time [ms]

3.5

2.9

Echo time [ms]

2.2

1.7

Field of View [mm3]

280 x [220–290] x [45–60]

280 x [280–300] ×  90

Acquisition voxel size [mm3]

2.5 × 2.5 × 2.5

Recon voxel size [mm3]

1.25 × 1.25 × 1.25

Flip angle [degrees]

4

10

Velocity encoding [cm/s]

150

Acquired temporal resolution [ms]

49.3 ± 7.8

52.0 ± 1.9

Reconstructed temporal resolution [ms]

39.4 ± 6.2

39.0 ± 1.4

Acceleration mode/ factors R

SENSE: R = 2, (6)

CS: R = 6

 

CS: R = 4, 6, 8, 10

 
  1. Acquisition parameters differ slightly between volunteer and patient study for two reasons: 1) patient measurements were performed after the administering of contrast agent which necessitate the increase of flip angle, 2) patients with dilatation of the aorta require a larger field of view to cover the aorta. Both modifications effect repetition and echo time