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
Year: 2024
Type: article
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: ) group to find the optimal combination of NI and ASiR-V. The comparisons between four TAT groups were conducted between the optimal and default combinations. A one-sample t test was applied to analyze the differences between the phantom BMD values measured at the L1-L3 vertebral level and the corresponding true BMDs. One-way analysis of variance was used to analyze the differences in measurements under the different TAT conditions. Root mean square error (RMSE) of BMD measurements and contrast-to-noise ratio (CNR) were calculated and compared. Results: . Conclusions: .
DOI: 10.21037/qims-24-185
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4405947583