Table 1 Computed tomography angiography (CTA) data acquisition and image reconstruction parameters

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Revolution CT (GE Healthcare)

Scan mode

Axial

Tube potential

100 and 120 kVp

Tube current (fixed)

320, 360, 500, and 570 mA

Gantry revolution time

0.28, 0.5, and 1 s

Volume CT dose index

5, 10, and 20 mGy

Beam collimation

256 × 0.625 mm

Scan field of view

32 × 32 cm²

Display field of view

20 × 20 cm²

Section thickness

0.625 mm

Voxel size

0.39 × 0.39 × 0.625 mm³

Kernel

Standard

Algorithm

0, 50, and 90% ASiR-V