نتایج جستجو برای: fbp
تعداد نتایج: 970 فیلتر نتایج به سال:
In recent years, due to the increasing amounts of data gathered from medical area, Internet Things are majorly developed. But high volume, velocity, and variety. proposed work heart disease is predicted using wearable devices. To analyze efficiently effectively, Deep Canonical Neural Network Feed-Forward Back Propagation (DCNN-FBP) algorithm used. The gadgets preprocessed by employing normaliza...
PURPOSE The influence of the numbers of projection of SPECT exerting on a re-constructed image cannot be strictly evaluated by phantom studies. Therefore, we compared re-constructed images of the FBP method and the ML-EM method by using simulation data. METHODS Simulation data was entered in the image processing software, and the projection data that changed the numbers of projection was made...
To find a way to promote the rate of carbon flux and further improve the photosynthetic rate in rice, two CO2-transporting and fixing relevant genes, Ictb and FBP/Sbpase, which were derived from cyanobacteria with the 35SCaMV promotor in the respective constructs, were transformed into rice. Three homologous transgenic groups with Ictb, FBP/Sbpase and the two genes combined were constructed in ...
OBJECTIVE To evaluate the image quality produced by six different iterative reconstruction (IR) algorithms in four CT systems in the setting of brain CT, using different radiation dose levels and iterative image optimisation levels. METHODS An image quality phantom, supplied with a bone mimicking annulus, was examined using four CT systems from different vendors and four radiation dose levels...
The dietary supply of folates and their measurement are both affected, potentially, by the instability of some folates. Labile folates appear to be stabilized by binding to folate-binding protein (FBP); this paper reports measurements of that stabilization. The degradation rates of the very labile tetrahydrofolate (H(4)folate) and moderately labile 5-methyltetrahydrofolate (5-CH(3)H(4)folate) w...
An ordered subsets expectation maximization (OS-EM) algorithm is used for image reconstruction to suppress image noise and to make non-negative value images. We have applied OS-EM to a digital brain phantom and to human brain 18F-FDG PET kinetic studies to generate parametric images. A 45 min dynamic scan was performed starting injection of FDG with a 2D PET scanner. The images were reconstruct...
PURPOSE To investigate whether adaptive statistical iterative reconstruction (ASiR) or model-based iterative reconstruction (MBIR) improves the diagnostic performance of computed tomography angiography (CTA) for small-vessel calcified lesions relative to filtered back projection (FBP) using cadaver extremities and a calcified stenosis phantom. METHODS A cadaver was used in accordance with our...
We report here on the interaction dynamics between flurbiprofen (FBP) and tryptophan (Trp) covalently linked in model dyads and in a complex of FBP with human serum albumin (HSA) probed by time-resolved fluorescence spectroscopy from the femto- to the nano-second timescales. In the dyads, a rapid (k > 10(10) s(-1)) dynamic quenching of the (1)FBP* fluorescence is followed by a slower (k > 10(9)...
.. Objective: Myocardial perfusion imaging (MPI) with superior quality of images in least acquisition time is imperative for diagnostic purpose. The objective of this study was to compare the Filter Back Projection (FBP) and half time Astonish reconstruction techniques in diagnosis of coronary artery disease using cardiac catheterization as gold standard. Place and period of study: Study was co...
We show that discrete tomography (DT) is suitable to increase the possible inspection size of single material oblong objects compared to filtered back projection (FBP) in non-destructive testing (NDT) with 2D X-ray computed tomography (CT). For such objects which are in one dimension larger than the maximum detectable material thickness limited view angles occur and FBP is not suitable for reco...
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