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Table 1 MRA sequence parameters

From: Radial self-navigated native magnetic resonance angiography in comparison to navigator-gated contrast-enhanced MRA of the entire thoracic aorta in an aortic patient collective

Sequence parameter

Native-SN-MRA

CE-MRA

Sequence type

bSSFP (TrueFISP)

T1-GRE

Acquisition trajectory

Radial

Cartesian

Respiration control

Self-navigated

Navigator based

Data efficiency

100%

Respiration dependend (ca. 50%)

TR

3.6 ms

3.4 ms

TE

1.83 ms

1.33 ms

Radial undersampling factor

5

n.a

Fat saturation

Spectral

Spectral

FOV

Isotropic, 250 mm

340 × 255 × 83 mm

Resolution

Isotropic, 1.3 mm

1.3 × 1.3 × 1.4 mm

Contrast media

No

Yes

  1. CE-MRA contrast-enhanced MRA, Native-SN-MRA 3D radial respiratory self-navigated non-contrast-enhanced MRA, TE echo time, TR repetition time, FOV field of view, bSSFP balanced steady state with free precession, GRE gradient echo