Hyperpolarized helium-3 magnetic resonance lung imaging of non-sedated infants and young children: a proof-of-concept study

Clin Imaging. 2017 Sep-Oct:45:105-110. doi: 10.1016/j.clinimag.2017.04.004. Epub 2017 May 10.

Abstract

Purpose: To develop and evaluate a protocol for hyperpolarized helium-3 (HHe) ventilation magnetic resonance imaging (MRI) of the lungs of non-sedated infants and children.

Materials and methods: HHe ventilation MRI was performed on seven children ≤4years old. Contiguous 2D-spiral helium-3 images were acquired sequentially with a scan time of ≤0.2s/slice.

Results: Motion-artifact-free, high signal-to-noise ratio (SNR) images of lung ventilation were obtained. Gas was homogeneously distributed in healthy individuals; focal ventilation defects were found in patients with respiratory diseases.

Conclusion: HHe ventilation MRI can aid assessment of pediatric lung disease even at a young age.

Keywords: Child; Cystic fibrosis; Hyperpolarized helium MRI; Infant; Magnetic resonance imaging.

MeSH terms

  • Child, Preschool
  • Diagnosis, Differential
  • Female
  • Helium / pharmacology*
  • Humans
  • Infant
  • Isotopes / pharmacology*
  • Lung / diagnostic imaging*
  • Lung Diseases / diagnosis*
  • Magnetic Resonance Imaging / methods*
  • Male
  • Proof of Concept Study*
  • Reproducibility of Results

Substances

  • Isotopes
  • Helium
  • Helium-3