In this work the head and neck cancer treatment of a pregnant patient was experimentally simulated. A female anthropomorphic Alderson phantom was used and the absorbed dose to the fetus was evaluated protecting the patient's abdomen with a 7cm lead layer and using no abdomen shielding. The target volume dose was 50Gy. The fetus doses evaluated with and without the lead shielding were, respectively, 0.52±0.039 and 0.88±0.052cGy.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.apradiso.2015.01.013 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Estimation of dose to a bystander from F-18 FDG patients using Monte Carlo simulation in clinical exposure scenarios.
Phys Eng Sci Med
January 2025
Department of Physics and Radiation Safety, Nepean Hospital, Penrith, New South Wales, Australia.
The radiation exposure to bystanders from nuclear medicine patients is a common concern raised in nuclear medicine departments. The GATE (Geant4 Application for Tomographic Emission) Monte Carlo radiation transport application was used to estimate the dose to a bystander. Two voxelised phantoms were utilised in a GATE Monte Carlo simulation as the radiation source and target.
View Article and Find Full Text PDFIs an oritavancin catheter lock solution active against biofilms of staphylococci and enterococci?
Heliyon
January 2025
Department of Clinical Microbiology and Infectious Diseases, Hospital General Universitario Gregorio Marañón, Madrid, Spain.
Background: Oritavancin (ORT) is a new single-dose lipoglycopeptide showing activity against staphylococci and vancomycin-resistant enterococci. However, there is no data regarding its potential use as a catheter lock solution are scarce. We constructed an model to analyze the efficacy and stability of an ORT lock solution against the biofilm of staphylococci and enterococci over 7 days at 37 °C.
View Article and Find Full Text PDFOptimal timing for lithium levels.
F1000Res
January 2025
Departments of Psychiatry, Neurology, Radiology, and Neuroscience, Washington University in St. Louis School of Medicine, St. Louis, MO, 63110, USA.
Reddy and Reddy (2014) discuss the optimal timing for lithium levels in patients taking once-daily extended-release lithium formulations. They argue for blood sampling 24 h after the previous dose rather than the standard 12 h. I interpret the data quite differently.
View Article and Find Full Text PDFToward Developing Alternative Opioid Antagonists for Treating Community Overdose: A Model-Based Evaluation of Important Pharmacological Attributes.
Clin Pharmacol Ther
January 2025
Division of Applied Regulatory Science, Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, Food & Drug Administration, Silver Spring, Maryland, USA.
In response to increased illicit use of synthetic opioids, various μ-receptor antagonist formulations, with varied pharmacological characteristics, have been and are being developed. To understand how pharmacologic characteristics such as absorption rate and clearance rate affect reversal in treating community opioid overdose, we used our previously published translational opioid model. We adapted this model with in vitro receptor binding data and clinical pharmacokinetic data of three intranasal nalmefene formulations along with an intranasal naloxone formulation to study the reversal of fentanyl and carfentanil-induced respiratory depression in chronic opioid users.
View Article and Find Full Text PDFEffective doses received by the gastrointestinal tract compartments of adults due to food intake in Egypt.
Sci Rep
January 2025
Faculty of Computer and Information, South Valley University, Qena, 83523, Egypt.
Ra, Th, and K levels in various foods frequently consumed by Egyptians were determined using a gamma-ray spectrometer based on the germanium detector (HPGe). Activity concentrations of Ra, Th, and K were in the range of < 0.10 to 0.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!