Results 61 to 70 of about 144,582 (289)
MIDSX: A Monte Carlo Interaction and Dosimetry Simulation of X-rays [PDF]
arXiv, 2023 Computed Tomography (CT) imaging, while essential for diagnostics, exposes patients to ionizing radiation. To accurately quantify radiation dosage, this study introduces MIDSX, a specialized open-source Monte Carlo (MC) photon transport code system for medical imaging.
arxiv
Establishment of Diagnostic Reference Levels for Computed Tomography Scanning in Hamadan [PDF]
Journal of Biomedical Physics and Engineering, 2020 Background: New advancements have increased the capabilities of computed tomography as a sectional medical imaging modality. An important note is assessing absorbed dose to patients and minimizing it when performing computed tomography examinations.
S Jafari +5 more
doaj +1 more source
대한영상의학회지, 2021 Purpose Although chest CT has been discussed as a first-line test for coronavirus disease 2019 (COVID-19), little research has explored the implications of CT exposure in the population.
Jong Hyuk Lee +5 more
doaj +1 more source
مجله دانشکده پزشکی اصفهان, 2020 Background: There is a close relationship between the radiation dose and the image quality; so that increasing the radiation dose leads to an increase in the image quality.
Mohammad Reza Choopani +3 more
doaj +1 more source
Radiation tolerance of opto-electronic components proposed for space-based quantum key distribution [PDF]
, 2015 Plasma in low earth orbit can damage electronic components and potentially jeopardise the scientific missions in space. Predicting the accumulated damage and understanding the components' radiation tolerance are important to mission planning. In this manuscript we report on the observed radiation tolerance of single photon detectors and a liquid ...
arxiv +1 more source
Predicting Dosage of Immunosuppressant Drugs After Kidney Transplantation Using Machine Learning [PDF]
arXiv, 2023 While kidney transplants are seen as the best treatment option for patients with end-stage renal disease and kidney failure, the organ's health depends on the dosage of immunosuppressant drugs post-transplantation. Due to the dosage variance based on each patient's unique physiology, nephrologists face numerous difficulties when determining the precise
arxiv
EUV induced defects on few-layer graphene [PDF]
J. Appl. Phys. 114, 044313 (2013), 2013 We use Raman spectroscopy to show that exposing few-layer graphene to extreme ultraviolet (EUV, 13.5 nm) radiation, i.e. relatively low photon energy, results in an increasing density of defects. Furthermore, exposure to EUV radiation in a H2 background increases the graphene dosage sensitivity, due to reactions caused by the EUV induced hydrogen ...
arxiv +1 more source
Cell‐free and extracellular vesicle microRNAs with clinical utility for solid tumors
Molecular Oncology, EarlyView.Cell‐free microRNAs (cfmiRs) are small‐RNA circulating molecules detectable in almost all body biofluids. Innovative technologies have improved the application of cfmiRs to oncology, with a focus on clinical needs for different solid tumors, but with emphasis on diagnosis, prognosis, cancer recurrence, as well as treatment monitoring.
Yoshinori Hayashi +6 more
wiley +1 more source
Frontiers in Surgery, 2022 ObjectiveTo explore the influence of a contrast agent injection scheme customized by dual-source CT based on automatic tube voltage technology on coronary imaging image quality and radiation dose.MethodsA total of 205 patients who underwent coronary CT ...
Weiling He +4 more
doaj +1 more source
Molecular Oncology, EarlyView.TOMM20 increases cancer aggressiveness by maintaining a reduced state with increased NADH and NADPH levels, oxidative phosphorylation (OXPHOS), and apoptosis resistance while reducing reactive oxygen species (ROS) levels. Conversely, CRISPR‐Cas9 knockdown of TOMM20 alters these cancer‐aggressive traits.
Ranakul Islam +9 more
wiley +1 more source