ArticleQuantitative imaging in medicine and surgery2025
Effects of different combinations of noise index and preset adaptive statistical iterative reconstruction Veo on the accuracy and image quality of bone mineral density measurements using fast kilovolt-switching dual-energy computed tomography: a phantom study.
Article in Quantitative imaging in medicine and surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Comparison of image quality in 40 keV virtual monoenergetic images of dual-energy CT pulmonary angiography using deep learning and iterative reconstruction algorithms under optimized low dose scanning protocols.Quantitative imaging in medicine and surgery · 2025Article
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6 authors.
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Abstract
Background: Rapid kilovolt (kV)-switching dual-energy computed tomography (DECT) has been increasingly applied to the measurement of lumbar spine bone mineral density (BMD) in humans and animal models. The objective of this study was to investigate the optimal parameters for the measurement of vertebral BMD. The BMD of the spinal model was measured by means of DECT in combination with different noise index (NI) and preset adaptive statistical iterative reconstruction Veo (ASiR-V) levels. The results were verified through simulating diverse total adipose tissue (TAT) conditions. Methods: A total of 54 sets of parameters, including NI ranging from 4 to 20 (at intervals of 2) and ASiR-V level ranging from 0% to 100% (20% increments), were used to perform rapid kV-switching DECT scans on the European Spine Phantom (ESP). Hydroxyapatite (HAP) (water) was used as the base material to measure the equivalent density of HAP in the vertebral body by fast kV-switching DECT scanning and defined as BMD. Fresh porcine fat was wrapped around the phantom and divided into four groups according to different TAT cross-sectional areas of (S=0 cm Results: For all three investigated vertebrae sections, there were significant differences (P<0.001). No significant differences existed between the measured HAP in three investigated vertebrae sections and the true values of the phantom (P>0.05) when NI =14 and ASiR-V Conclusions: During the rapid kV-switching DECT scans, NI and ASiR-V, when combined with image quality and radiation dose, can improve the accuracy of BMD measurement, with the optimal parameter combination being NI =18 and ASiR-V
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