نتایج جستجو برای: diagnostic reference levels

تعداد نتایج: 1423468  

Journal: :Asian Pacific journal of health sciences 2022

In the radiological department, computed tomography (CT) scan process has become a greater radiation dosage that contributes to all medical X-ray treatments. Many studies throughout world have found CT accounts for just 5% of operations conducted yet 34% yearly exposures in Similarly, other 17% worldwide but 49% total doses Because diagnostic reference levels (DRLs) are one ways optimizing dose...

Introduction: Head scans are the most frequently performed computed tomography (CT) examinations worldwide. However, there is growing concern over the probability of increased cancer risks among the exposed populations. Diagnostic reference levels (DRLs) identify radiation dose that is not commensurate with clinical objectives. The aim of this study was to establish DR...

Journal: :Nowotwory 2021

Introduction. Average glandular dose (AGD) values displayed by mammography units are often used to compare doses with diagnostic reference levels, acceptable and achievable levels given in the European guidelines on breast cancer screening, or between units. The aim of work was check reliability AGD comparing them independently calculated values. Material methods. comparison performed for five ...

Mohammad Bahrami Mohammad Taghi Bahreyni Toossi,

Introduction Computed Tomography scans are a very important tool for diagnosis and assessment of response to treatment in the practice of medicine. Ionizing radiation in medical imaging is undoubtedly one of the most powerful diagnostic tools in medicine. Yet, as with all medical interventions, there are potential risks in addition to the clear potential benefits. Materials and Methods Two refe...

Journal: :BMC Musculoskeletal Disorders 2005
Mark Laslett Barry McDonald Hans Tropp Charles N Aprill Birgitta Öberg

BACKGROUND The tissue origin of low back pain (LBP) or referred lower extremity symptoms (LES) may be identified in about 70% of cases using advanced imaging, discography and facet or sacroiliac joint blocks. These techniques are invasive and availability varies. A clinical examination is non-invasive and widely available but its validity is questioned. Diagnostic studies usually examine single...

Objective(s): Diagnostic nuclear medicine is being increasingly employed in clinical practice with the advent of new technologies and radiopharmaceuticals. The report of the prevalence of a certain disease is important for assessing the quality of that article. Therefore, this study was performed to evaluate the quality of published nuclear medicine articles and determine the frequency of repor...

Abdol Aziz Khezri Ali Ariafar Mehdi Shirazi, Mehrdad Askarian Mehrzad Lotfi Mohammad Amin Afrasiabi Seyyed Mohammad Taghi Ayatollahi

Background: It is relevant to highlight that there is not a precise and perfect report on either 95 percentile value (upper limit of normal range) or on appropriate reference intervals for serum PSA in Iranian population. Objective: To determine age-specific reference ranges for serum prostate-specific antigen (PSA) concentration and PSA density (PSAD) and prostate volumes in a population of he...

2014
Ming-Chu Chang Po-Chin Liang I-Shiow Jan Ching-Yao Yang Yu-Wen Tien Shu-Chen Wei Jau-Min Wong Yu-Ting Chang

OBJECTIVES The International Consensus Diagnostic Criteria (ICDC) designed to diagnosis autoimmune pancreatitis (AIP) has been proposed recently. The diagnostic performance of ICDC has not been previously evaluated in diffuse-type and focal-type AIP, respectively, in comparison with the revised HISORt and Asian criteria in Taiwan. DESIGN Prospective, consecutive patient cohort. SETTING Larg...

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