View clinical trials related to Radiation Exposure.
Filter by:Interventional cardiologists are exposed to significant doses of scatter radiation during cardiac catheterization and percutaneous coronary intervention. Traditional methods of reducing the radiation dose for operators in the cardiac catheterization laboratory include limiting the use of radiation, radiation protection aprons and shields, and the use of lead eye glasses. Despite these measures several parts of the operators body, including the head and neck, are poorly screened from scatter radiation. Radiation protection drapes have been developed for use in cardiac catheterization but no randomized controlled study has yet been performed with the commercially available Mavig X-ray Protective Drapes®. The aim of this study is to evaluate operator radiation protection using Mavig X-ray Protective Drapes®.
Although a CT scan is required for some Emergency Department patients with signs and symptoms of a kidney stone, recent evidence has shown that routine scanning is unnecessary and may expose young patients to significant cumulative radiation, increasing their risk of future cancers. Shared Decision-Making may facilitate diagnostic imaging decisions that are more inline with patients' values and preferences. By comparing a shared approach to diagnostic decision-making to a traditional, physician-directed approach, this study lays the foundation for a future randomized trial that will reduce radiation exposure, improve engagement, and improve the quality and patient-centeredness of Emergency Department care.
Case control on thyroid cancer occuring in a cohort of 7300 subjects treated during their childhood, mostly by radiotherapy, for a skin Angioma at Gustave Roussy, Villejuif France between 1947 and 1973. This case control study, which is included in a larger european project, aims to investigate the DNA variant interacting with the risk of radiation induced thyroid cancer after irradiation. The sutdy is planed to include about 30 cases and 30 controls. Matching criteria are date of birth, gender, and age at irradiation.
This trial investigates operator radiation doses when performing standardized procedures using two different means of radiation protection, namely conventional lead shield and apron versus suspended protection system (Zero-Gravity, ZG). The performed procedure is standard endovascular aortic repair (EVAR). The hypothesis is that ZG offers superior protection for the operator.
Brain metastases are a source of much morbidity and mortality in adults with primary solid malignant tumors. With improvements in systemic therapy that prolong survival but have limited central nervous system penetration, patients with brain metastases are at increasing risk of developing and experiencing long-term side effects from treatment of brain metastases. The overarching goal of this study is to better understand the determinants of RT-associated changes in white and gray matter function and associated neurocognitive decline.
Randomized comparison of radiation exposure in coronary angiography between right conventional and left distal radial artery approach
There has been increasing awareness regarding the risk of radiation exposure to patients and providers when performing procedures requiring fluoroscopic guidance.
Common Flutter ablation technique use low X-ray based three-dimension (3D) navigation for catheter tracking, have become a popular implementation to treat patient's underlying arrhythmia. Compared with fluoroscopy, the gold standard X-ray based method, this recent technique provides the required anatomical information and reduce risk associated with ionizing radiation exposure. Besides Practical Guidelines "as low as reasonably achievable (ALARA) to minimize and normalize radiation exposure had been published so far. The risk of developing acute radiation associated injuries still remains high. In the present study we will compare two groups of patients undergoing into cavotricuspid isthmus (CTI) ablation using either the 3D navigation ("Ensite NavX system") (n = 25) or conventional fluoroscopy (n = 25). Further developing the 3D navigation technique will help to increase safety during the treatment, for both patients and the personnel and increase the success rate during the electrophysiological (EP) interventional procedures.
Aims: to determine the radiation exposure of routine intraoperative cholangiography (IOC )during cholecystectomy and examine the factors affecting radiation dose and fluoroscopy time (FT). Methods: 598 intraoperative cholangiography examinations were performed at the Central Finland Central Hospital. In this study we included 324 intraoperative cholangiographies performed with c-arm equipment not exceeding 10 years of age.
The main purpose of this study is to assess and test the reproducibility and results of hyperpolarized 3-Helium gas as a contrast agent with Magnetic Resonance Imaging (MRI) of the lungs in healthy adult subjects.