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Table 5 Objective and subjective image quality per stent type

From: Computed tomography image quality of aortic stents in patients with aortic coarctation: a multicentre evaluation

  Average stent diameter (mm) Noise aorta (HU) Noise muscle (HU) Signal-to-noise ratio
Aorta
Signal-to-noise ratio
Muscle
Contrast to noise Overall subjective image quality Image quality aorta
Proximal score
Image quality aorta
Central score
Image quality aorta
Distal score
Paediatrics
 Cheatham Platinum (n = 18) 14±3 30±13 24±10 13±7 3±2 12±6 2.0±0.8 2.3±0.7 2.0±0.7 2.4±0.8
 Atrium Advanta V12 (n = 5) 11±3 28±16 23±8 13±2 3±1 11±3 3.4±0.9 3.6±0.5 3.6±0.5 3.6±0.5
 IntraStent (n = 4) 12±4 44±21 26±9 12±7 3±1 13±6 3.5±0.6 4.0±0.0 4.0±0.0 4.0±0.0
 AndraStent (n = 4) 17±3 32±17 32±23 15±6 3±1 14±7 3.8±0.5 3.8±0.5 3.8±0.5 3.8±0.5
 Formula (n = 3) 6±1 30±17 15±5 10±2 6±1 9±1 2.3±1.2 3.7±0.6 3.7±0.6 3.7±0.6
 Palmaz (n = 3) 15±1 29±16 28±13 17±11 3±1 14±8 4.0±0.0 4.0±0.0 4.0±0.0 4.0±0.0
Adults
 Cheatham Platinum (n = 34) 17±3 27±11 24±8 14±7 3±1 12±6 2.3±0.6 2.3±0.8 1.9±0.8 2.6±0.7
  1. Data are means ± standard deviations. HU Hounsfield unit