View clinical trials related to Radiation Exposure.
Filter by:Radius distal end fractures are common orthopedic injuries. Many methods have been described in the treatment of distal radius fractures. The fixation of radius distal end fracture with volar plate was first applied by Ellis in 1965. Over the years, ideas have been put forward on the materials used for plates and the radiolucent carbon fiber plates has been used. These plates cause less artifact in computed tomography (CT) and magnetic resonance examinations (MRI), allow a better evaluation of the fracture, exhibit biomechanical characteristics close to the cortical bone, and do not cause a coldwedding in patients.
The objective of this study is to review the results of annual radiation doses received by interventional cardiologists and radiologists in France. The results of this study will allow the improvement of classification of interventional cardiology and radiology activities and procedures to help define radiation dose constraints for occupational exposure, according to the number and types of procedures performed. The study is based on the hypothesis that some specialties in interventional cardiology (cardiology or rythmology procedures) and in interventional radiology (vascular, neuroradiology, osteoarticular) and some types of procedures present greater exposure risks for interventional cardiologists and radiologists. It is expected that the annual radiation dose limits for workers can be exceeded if good practices for both patient and worker radiation protection are not applied. Also, dosimetry equipment used to detect radiation dose although provided to the workers are not systematically worn by the physician during the procedure . The study is likely to show that for an equivalent speciality and number of procedures per type of act, the correct use of collective and personal radiation protection equipment (préciser) will lower occupational radiation exposure of physician . Similarly, for an equivalent activity and number of procedures per type of act , a trained physician would have a lower occupational exposure than an untrained physician. The physician's radiation exposure should therefore increase with a greater number of procedures per type of procedure performed and as the radiation dose delivered to the patient increase. Finally, there would be a different correlation between patient's radiation dose and physician's exposure depending on specialty, procedures, modality, experience and availability and use of collective and personal radiation protection equipment.
The aim of the study is to evaluate the effect of the Education Program based on the Mastery Learning Model for Chemical, Biological, Radiological, and Nuclear threats and hazards (MLM-CBRN Education Program) on student nurses' knowledge, attitude, self-efficacy, and skill development in chemical, biological, radiological and nuclear threats and hazards. The complete experimental design type was used in the study.
Previous studies have documented that orthopedic injuries and musculoskeletal pain are a likely result of wearing heavy leaded aprons. This single-center, randomized 1-3 month clinical study compares conventional lead aprons and ancillary shields to the Rampart IC, M1128 radiation protection system in order to improve radiation safety with minimal orthopedic strain by using the RAMPART device. There will be three study arms, each arm requiring 21 procedures for a total of 63 total procedures, Each procedure will be randomized, instead of individual subjects. Each enrolled subject may be involved in more than one procedure/case. Randomization stratification will be 1:1:1 to either Rampart shield only, lead apron and ancillary shield, or lead apron and Rampart Shield. Real-time dosimeters will be used in each procedure to measure radiation attenuation.
Aiming to reduce radiation exposure to patients and physicians, the investigators conduct this study protocol to evaluate the possibility of performing retrograde intrarenal surgery (RIRS) under direct visualization without fluoroscopy. the investigators will prospectively evaluate the outcome of fluoroscopy-free RIRS for renal stones in comparison with the standard technique. The investigators expected that the fluoroscopy-free technique has high safety and efficacy even in complicated cases.
The purpose of this registry is to collect retrospective and prospective standardized data of patients treated with particle therapy, either with protons or carbon ions, at the National Center for Oncological Hadrontherapy (CNAO) based in Pavia. By keeping track of the patients treated, it will allow the investigators to periodically analyze and evaluate data collected of daily clinical activity. This will help gathering more information on the results of particle therapy and will provide the basis for in depth evaluation of patients' outcome with respect to the delivered treatment.
Background: The contrast time-enhancement profiles of pulmonary artery (PA) and the aorta differ by using computed tomography (CT) angiography. Our purpose is to identify the optimal CT protocol for assessment of both vessels in one-time CT scan. Methods: The investigators prospectively enrolled 101 cases of CT angiography with suspicion of pulmonary embolism or aortic dissection in our center from 2018 to 2020. Forty cases receiving traditional two-time CT scans were collected retrospectively from 2015 to 2018. The investigators designed four groups: test bolus (TB) I, II and bolus-tracking (BT) I, II. The enhancement of the both vessels and the radiation dose of these four groups were collected. Traditional group was separated into traditional PA scan and traditional aorta scan. Data analyzed among the BT groups and the traditional groups were performed.
Exposure to radiation, such as during routine CTs, bone scans, or X-rays, causes oxidative stress which can damage the DNA (your genetic material) within your white blood cells. While the amount of DNA damage that may occur from one scan is not harmful to your overall health, there could be concerning damage in patients who are constantly exposed to this radiation. Currently, there is no way to prevent DNA damage during a medical scan. One potential way to fight the oxidative stress caused by radiation is to take an antioxidant before a scan. The purpose of this study is to see if a combination of antioxidants can protect someone from the damage that radiation causes to the DNA of their white blood cells.
This study aims to evaluate the level of knowledge and attitude of the operating room nurses about radiation exposure.This descriptive study was conducted with 100 nurses working in the operating room of two university hospitals in Istanbul. Descriptive statistical analyses were performed using IBM SPSS 23 (Statistical Package for Social Sciences for Windows, Version 23.00, Armork NY).
Radiotherapy plays an important role in multidisciplinary treatment of esophageal cancer. However, about half patients received radiotherapy occurred relapse. Once relapse occurred, there is no better treatment strategy. Genomic study of relapsed esophageal cancer is seldom. So the investigators attempt to collect relapsed tissue to conduct with whole exome sequencing in order to investigate the genome landscape of recurrence esophageal cancer.