Quantitative approaches for radiography

Radiographers work in a multi-disciplinary field of applied science dealing with technologies and patients. Quantitative knowledge is preferred for practical applications in the field of radiography. X-ray experiments using imaging systems (computed tomography and radiographic imaging systems) and their related equipment are frequently being carried out in dealing with technical challenges. In designing X-ray experiments, national and international standards should be followed and state-of-the-art equipment should be used. One should also be creative and prepared to go beyond conventional practice and procedures. Non-experimental methodologies are used in dealing with patients where direct experiments on patients are either impractical or unethical. Existing data from all sources (published and unpublished) can be mathematically (statistically) analysed for the benefit of patients. Radiographers are participants and users of epidemiology studies using X-ray imaging technologies. Clinical trials of pharmaceutical drugs, devices or clinical procedures are extremely valuable for people’s health. Randomized controlled trials are the most powerful experimental studies on human subjects. In practice, less stringent clinical studies than randomized controlled trials are often being carried out and these studies are making important contributions to the body of scientific knowledge.