Assessment of extremity dose for medical staff involved in positron emission tomography/computed tomography imaging: Retrospective study.

There has been an increase in positron emission tomography (PET)/computed tomography (CT) imaging procedures, and medical workers involved in PET/CT are at increased risk of occupational exposure. Data on extremity dose exposure are limited globally. The current study aimed to evaluate the occupational radiation dose for extremities for medical workers (nurses, radiographers/radiologic technologists, and nuclear medicine physicians) working in PET/CT scanners at 5 large hospitals in Turkey.

Investigation of Radiochromic Film Use for Source Position Verification through a LINAC On-Board Imager (OBI).

Quality assurance is an integral part of brachytherapy. Traditionally, radiographic films have been used for source position verification, however, in many clinics, computerized tomography simulators have replaced conventional simulators, and computerized radiography systems have replaced radiographic film processing units. With these advances, the problem of controlling source position verification without traditional radiographic films and conventional simulators has appeared.

Diagnostic Performance of Machine Learning Models Based on F-FDG PET/CT Radiomic Features in the Classification of Solitary Pulmonary Nodules.

Objectives: This study aimed to evaluate the ability of fluorine-fluorodeoxyglucose (F-FDG) positron emission tomography/computed tomography (PET/CT) radiomic features combined with machine learning methods to distinguish between benign and malignant solitary pulmonary nodules (SPN).

Methods: Data of 48 patients with SPN detected on F-FDG PET/CT scan were evaluated retrospectively. The texture feature extraction from PET/CT images was performed using an open-source application (LIFEx).

Impact of Eye and Breast Shielding on Organ Doses During Cervical Spine Radiography: Design and Validation of MIRD Computational Phantom.

The study aimed to design and validate computational phantoms (MIRD) using the MCNPX code to assess the impact of shielding on organ doses. To validate the optimized phantom, the obtained results were compared with experimental results. The validation of the optimized MIRD phantom was provided by using the results of a previous anthropomorphic phantom study.

Novel HMO-Glasses with SbO and TeO for Nuclear Radiation Shielding Purposes: A Comparative Analysis with Traditional and Novel Shields.

The radiation shielding characteristics of samples from two TeO and SbO-based basic glass groups were investigated in this research. TeO and SbO-based glasses were determined in the research as six samples with a composition of 10WO-(x)MoO-(90 - x)(TeO/SbO) (x = 10, 20, 30). A general purpose MCNPX Monte Carlo code and Phy-X/PSD platform were used to estimate the radiation shielding characteristics.

Newly Developed Vanadium-Based Glasses and Their Potential for Nuclear Radiation Shielding Aims: A Monte Carlo Study on Gamma Ray Attenuation Parameters.

This study aimed to investigate different types of glasses based on the 46VO-46PO-(8-x) BO-xCuO system in terms of their nuclear radiation shielding properties. Accordingly, five different CuO-doped vanadate glasses were investigated extensively to determine the necessary gamma shielding parameters along with effective conductivity at 300,000 and buildup factors. Phy-x PSD software was used for determination of these vital parameters.

Detailed Inspection of -ray, Fast and Thermal Neutrons Shielding Competence of Calcium Oxide or Strontium Oxide Comprising Bismuth Borate Glasses.

For both the BO-BiO-CaO and BO-BiO-SrO glass systems, -ray and neutron attenuation qualities were evaluated. Utilizing the Phy-X/PSD program, within the 0.015-15 MeV energy range, linear attenuation coefficients (µ) and mass attenuation coefficients (μ/ρ) were calculated, and the attained μ/ρ quantities match well with respective simulation results computed by MCNPX, Geant4, and Penelope codes.

Coronavirus Disease 2019 Strategies, Examination Details, and Safety Procedures for Diagnostic Radiology Facilities: An Extensive Multicenter Experience in Istanbul, Turkey.

This study aimed to share our experiences during the coronavirus disease 2019 (COVID-19) pandemic obtained in diagnostic radiology facilities of 5 training research hospitals in the Asian part of Istanbul (North Hospitals). Accordingly, we reported the used examination details, allocation of radiology staff and actions, and safety procedures for patients and radiology staff. As the corporate radiology team serving in these designated pandemic hospitals, examination details and safety procedures of some diagnostic radiology facilities among 5 training research hospitals have been identified in the current study.

Lead exposure in clinical imaging - The elephant in the room.

Purpose: Radiation Protection Apparel (RPA) is used during diagnostic imaging and interventional procedures to minimise incidental radiation exposure. The majority of RPA in use are lead-containing, which has until now been considered safe. A recent single-centre study has demonstrated that the external surface of 63 % of RPA was contaminated with lead dust.

Computed tomography radiation doses for common computed tomography examinations: a nationwide dose survey in United Arab Emirates.

Objectives: Computed tomography (CT) scanning is an essential part of diagnostic and treatment plans, providing swift and accurate diagnostic images. The aim of this study is to develop diagnostic reference levels (DRLs) for the adult common CT examination in the United Arab Emirates (UAE).

Methods: This study presents results of the survey of CT dose indices.

Radiation shielding parameters of some antioxidants using Monte Carlo method.

In this paper, radiation shielding parameters such as mass attenuation coefficients and half value layer (HVL) of some antioxidants are investigated using MCNPX (version 2.4.0).