ArticlePediatric radiology2025
Paediatric high-pitch lung imaging with photon-counting detector computed tomography: a dose reduction phantom study.
Article in Pediatric radiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Infant and toddler's preoperative chest imaging on photon-counting detector CT: a paired-sample comparison with energy-integrating detector CT on image quality and radiation dose.BMC medical imaging · 2026Article
- Pediatric pulmonary nodules: current state of knowledge, AI applications, and future directions.Pediatric radiology · 2026Review
- [Magnetic resonance imaging of the pediatric chest].Radiologie (Heidelberg, Germany) · 2025Review
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Authors and funding
7 authors.
Funding
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Abstract
backgroundPhoton-counting detector computed tomography (PCD-CT) can reduce radiation dose in paediatric lung imaging.
objectiveThe aim of this study was to determine the lowest radiation dose maintaining adequate image quality for high-pitch lung imaging using a PCD-CT in a chest phantom replicating the characteristics of a 5-year-old child. MATERIALS AND
methodsThe phantom was imaged on a dual-source PCD-CT with five different volume CT dose indices (CTDI
resultsExposure times were 0.42 s and 0.84 s for standard and ultra-high resolution modes, respectively. Subjective assessments showed no significant differences across scan modes or quantum iterative reconstruction strengths for both readers at all doses (all, P > 0.05). Scans at 0.07 mGy with quantum iterative reconstruction 4 were deemed to maintain adequate image quality at the lowest dose. Global noise index was always lower and global signal-to-noise ratio index always higher in ultra-high resolution compared with standard mode, underscoring noise reduction achieved via ultra-high resolution mode's small pixel effect.
conclusionsPCD-CT enables high-pitch lung imaging while maintaining adequate image quality at a radiation dose as low as 0.07 mGy, with quantum iterative reconstruction 4, in a paediatric phantom representing a 5-year-old child.
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