Table 4 Bivariate and multivariate logistic regression to identify factors associated with poor image quality (quality grades 1–2 vs quality grades 4–5)

Age (years)

0.98

ns

0.92–1.04

0.89

<0.05

0.8–0.99

Heart rate (bpm)

1.07

<0.01

1.02–1.12

1.11

<0.01

1.03–1.2

Height (cm)

0.97

<0.05

0.95–0.99

Weight (kg)

0.96

<0.05

0.93–0.99

EF (%)

5.8×10 ⁻⁶

<0.01

1.3 × 10 ⁻⁹ –0.03

1.2 × 10 ⁻¹⁰

<0.01

2.4 × 10 ⁻¹⁷ –6 × 10 ⁻⁴

Complex malformation

4.26

<0.05

1.05–17.35

Surgical correction

0.31

0.07

0.08–1.11

Acquisition window (ms)

0.96

<0.05

0.92–0–99

Scan duration (s)

1.16

0.09

0.98–1.38

Use of IV contrast

0.14

<0.01

0.03–0.55

0.007

<0.01

0.0004–0.15