WebPurpose: To assess the advantages of iterative reconstruction for quantitative computed tomography (CT) analysis of pulmonary emphysema. Materials and methods: Twenty … Webby rotating of the X-ray CT scan system. Under the observation of the sinogram as the bundle of sinusoid curves, the proposed algorithm is a minimization problem with the sparsity of the coefficient when curvelet transforms are applied in the sinogram. We provide the numerical simulation and phantom experiment to support the our assertion. 2 ...
DuDoTrans: Dual-Domain Transformer for Sparse-View CT
WebMay 10, 2024 · We provide two dynamic CT datasets (D4DCT-DFM, D4DCT-AFN) where the sinogram data represent a time-varying object deformation to demonstrate damage evolution due to several mechanical stresses (compression). The provided datasets enable training and evaluation of the data driven machine learning methods for DCT reconstruction. WebPurpose: To assess the advantages of iterative reconstruction for quantitative computed tomography (CT) analysis of pulmonary emphysema. Materials and methods: Twenty-two patients with pulmonary emphysema underwent chest CT imaging using identical scanners with three different tube currents: 240, 120, and 60 mA. facebook log in farm heroes
US Patent Application for X-RAY DIAGNOSTIC APPARATUS …
WebMar 9, 2024 · Computed tomography (CT) reconstruction from X-ray projections acquired within a limited angle range is challenging, especially when the angle range is extremely small. Both analytical and iterative models need more projections for effective modeling. WebThis work proposes ExtraPolationNetwork for limited-angle CT reconstruction via the introduction of a sinogram extrapolation module, which is theoretically justified and significantly improves the generalization capability of the model on unseen datasets when compared to existing approaches. Expand WebFrom left to right: a IntraTomo trained on low-resolution sinogram with 64 measurements per view is evaluated in high-resolution with 512 measurements (8 $\times$ upsampling), a Lanczos upsampling, and a Bicubic upsampling of low-resolution sinogram with ROF reconstruction [26]. facebook login facebook log into my