ArticleMagnetic resonance in medicine2025
Single breath-hold volumetric lung imaging at 0.55T using stack-of-spiral (SoS) out-in balanced SSFP.
Article in Magnetic resonance in medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Feasibility of free-breathing 0.55-T lung MRI for structural and functional characterization in preterm infants with bronchopulmonary dysplasia.Pediatric radiology · 2026Article
- Simultaneous 3D structural-functional assessment of pediatric lung using 0.55-T MRI: a feasibility study.Radiology advances · 2026Article
- Free-breathing 3D pulmonary ventilation mapping at 0.55 T using stack-of-spiral out-in bSSFP.Magnetic resonance in medicine · 2026Article
- Single breath-hold volumetric lung imaging at 0.55T using stack-of-spiral (SoS) out-in balanced SSFP.Magnetic resonance in medicine · 2025Article
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6 authors.
Funding
Abstract
purposeTo develop a robust single breath-hold approach for volumetric lung imaging at 0.55T.
methodA balanced-SSFP (bSSFP) pulse sequence with 3D stack-of-spiral (SoS) out-in trajectory for volumetric lung imaging at 0.55T was implemented. With 2.7× undersampling, the pulse sequence enables imaging during a 17-s breath-hold. Image reconstruction is performed using 3D SPIRiT and 3D l1-Wavelet regularizations. In two healthy volunteers, single breath-hold SoS out-in bSSFP was compared against stack-of-spiral UTE (spiral UTE) and half-radial dual-echo bSSFP (bSTAR), based on signal intensity (SI), blood-lung parenchyma contrast, and image quality. In six patients with pathologies including lung nodules, fibrosis, emphysema, and air trapping, single breath-hold SoS out-in and bSTAR were compared against low-dose computed tomography (LDCT).
resultsSoS out-in bSSFP achieved 2-mm isotropic resolution lung imaging with a single breath-hold duration of 17 s. SoS out-in (2-mm isotropic) provided higher lung parenchyma and blood SI and blood-lung parenchyma contrast compared to spiral UTE (2.4 × 2.4 × 2.5 mm
conclusionSingle breath-hold volumetric lung imaging at 0.55T with 2-mm isotropic spatial resolution is feasible using SoS out-in bSSFP. This approach could be useful for rapid lung disease screening, and in cases where free-breathing respiratory navigated approaches fail.
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