3) age hardening curve 时效硬化曲线 1. Influence of electric field on the age hardening curve and microstructure of 2E12 aluminum alloy have been investigated by means of hardness-test and transmission electron microscopy(TEM). 通过硬度测量和TEM分析的方法研究了电场对2E12铝合金时效硬化曲线和微观...
Time-Activity Curve Based Sinogram Decomposition for Streak Artifacts Reduction in Dynamic PET ReconstructionThis paper developed a novel dynamic PET reconstruction algorithm to reduce the severe streak artifacts due to the existence of overwhelmingly higher signals such as bladder than other areas. This ...
METHODS: This article presents an approach to reduce the uncertainty in the blood TAC by fitting a model to the curve. The model includes a choice of bolus or infusion input and has three compartments (plasma, interstitial fluid and tissue fluid) with exchange between them. There is a ...
The resulting organ-wise time-activity-curve (TAC) is then integrated to estimate the accumulated activity, which, together with the so called S-value determines the absorbed dose according to the Medical Internal Radiation Dose (MIRD) scheme. From this, the dose limiting organ is identified (...
Arterial sampling in PET studies for the purposes of kinetic modeling remains an invasive, time-intensive, and expensive procedure. Alternatives to derive the blood time-activity curve (BTAC) non-invasively are either reliant on large vessels in the fiel
Automatic generation of noise-free time-activity curve with gated blood-pool emission tomography using deformation of a reference curve This paper describes a new method for assessing clinical parameters from a noisy regional time-activity curve (TAC) in tomographic gated blood-pool ventric... de ...
Construction of Time-Activity Database and its Implications on Exposure Assessment Outcomesbenzenebiological monitoringS-PMAgenetic polymorphismCYP3E1GSTNQO1area under curveAn abstract is unavailable.doi:10.1097/00001648-200611001-01265Y HuangY W Hsu
Kidney dosimetry in 177Lu and 90Y PRRT requires 3 to 6 whole-body/SPECT scans to extrapolate the peptide kinetics, and it is considered time and resource consuming. We investigated the most adequate timing for imaging and time-activity interpolating curve, as well as the performance of a simpl...
The curve is based on a spline-based Cox model, adjusted for baseline covariates including age, sex, cardiovascular disease, multimorbidity index, smoking status, pack-years, perceived general health, perceived health 1 year before interview, hypertension, activities of daily living score, General ...
(P = 0.014; Supplementary Fig.S2online). However, For cycling, we identified a U-shaped curve for the association, with the maximum observed cardiovascular benefit accrued with 37.5 MET-hours/week, equivalent to about 9 h cycling per week (HR, 0.46 [95% CI 0.33 to 0.63]); Fig.2C...