Radiographers' involvement in research activities and opinions on radiography research: A Nordic survey

Introduction: Radiographers' engagement in research is important for the development of evidence-based practice in radiography; however, radiographers' interest in research has rarely been reported. This study sought to ascertain radiographers' opinions about radiography research and investigate their involvement in research activities in four Nordic countries.Methods: This study was conducted in Denmark, Finland, Norway and Sweden. A study-specific questionnaire was developed in English and adapted to each language of the study sample, and the content and face validity of the adaptations were evaluated. An online tool was used to collect the study data. The questionnaire link was distributed in September 2019 to radiographers working in clinical settings in four Nordic countries (n = 4572).Results: The overall response rate was 14% (n = 662/4572). Research involvement was reported by 33% of the respondents; data collection was the main type of contribution. Radiographers who contributed to research were more likely to be male, have longer work experience, hold a master's or doctoral degree, work as managers and be employed in university hospitals. Nearly all agreed that radiography research is needed to promote the radiography profession and provide the evidence base for radiographic practice. However, only 14% were aware of the current research evidence regarding their professional field of specialisation, and 19% indicated that they developed current practices based on research evidence.Conclusion: The findings indicate that, although radiographers had positive attitudes towards radiography research, their involvement in research and utilisation of research evidence in practice is low.</p

Radiation dose differences between thoracic radiotherapy planning CT and thoracic diagnostic CT scans

Purpose: To compare the absorbed dose from computed tomography (CT) in radiotherapy planning (RP CT) against those from diagnostic CT (DG CT) examinations and to explore the possible reasons for any dose differences. Method: Two groups of patients underwent CT-scans of the thorax with either DG-CT (n=55) or RP-CT (n=55). Patients from each group had similar weight and body mass index (BMI) and were divided into low (25). Parameters including CTDIvol, DLP and scan length were compared. Results: The mean CTDIvol and DLP values from RP-CT (38.1 mGy, 1472 mGy·cm) are approximately four times higher than for DG-CT (9.63 mGy, 376.5 mGy·cm). For low BMI group, the CTDIvol in the RP-CT scans (36.4 mGy) is 6.3 times higher than the one in the DG-CT scans (5.8 mGy). For high BMI group, the CTDIvol in the RP-CT (39.6 mGy) is 2.5 times higher than the one in the DG-CT scans (15.8 mGy). In the DG-CT scans a strong negative linear correlation between noise index (NI) and mean CTDIvol was observed (r =-0.954, p=0.004); the higher NI, the lower CTDIvol. This was not the case in the RP-DG scans. Conclusion: The absorbed radiation dose is significantly higher and less BMI dependent for RP-CT scans compared to DG-CT. Image quality requirements of the examinations should be researched to ensure that radiation doses are not unnecessarily high

Radiation chemistry of solid-state carbohydrates using EMR

We review our research of the past decade towards identification of radiation-induced radicals in solid state sugars and sugar phosphates. Detailed models of the radical structures are obtained by combining EPR and ENDOR experiments with DFT calculations of g and proton HF tensors, with agreement in their anisotropy serving as most important criterion. Symmetry-related and Schonland ambiguities, which may hamper such identification, are reviewed. Thermally induced transformations of initial radiation damage into more stable radicals can also be monitored in the EPR (and ENDOR) experiments and in principle provide information on stable radical formation mechanisms. Thermal annealing experi-ments reveal, however, that radical recombination and/or diamagnetic radiation damage is also quite important. Analysis strategies are illustrated with research on sucrose. Results on dipotassium glucose-1-phosphate and trehalose dihydrate, fructose and sorbose are also briefly discussed. Our study demonstrates that radiation damage is strongly regio-selective and that certain general principles govern the stable radical formation

OPTIMAX 2017 : radiation dose, image quality optimisation,the use of new technology in medical imaging

This year OPTIMAX settled in Oslo. After the successof previous years, we are proud to present the fourthEbook. As in previous years, the group was madeup of PhD-, MSc- and BSc students as well astutors from the seven European partner universities.Professional mix was drawn from medical physics/physics and radiography. OPTIMAX 2017 was partlyfunded by the partner universities and partly by theparticipants. Two students from South Africa and twofrom Brazil were invited by Hanze UAS (Groningen)and ESTeSL (Lisbon) summer school includedlectures and group projects in which experimentalresearch was conducted in four teams. Four research projects were performed with a focuson radiation dose optimization and image quality,namely: Possible dose reduction for pediatric patientsfor conventional radiology; Can the tube voltage belowered with the use of direct-conversion flat paneldetector system?; Impact of body size and kV in chestradiography; Quantity assessment on Image quality ofCBCT images of head phantom with implants of metaland ceramic objects.The last day of OPTIMAX 2017there was a poster session and a conference, in whichthe research teams presented their posters and oralpresentations. This book comprises of two sections, the first twochapters concern generic background informationabout international teamwork during the OPTIMAXsummerschool. The next chapters with theory on which the researchprojects were built. The second section containsthe research papers of the four research projects.Two research papers, Can the tube voltage belowered with the use of direct-conversion flat-paneldetector system? And Impact of body size and kV inchest radiography: Experimental receiver operatingcharacteristic analysis using a Multipurpose ChestPhantom “Lungman” have been accepted for the ECRconference, Vienna, 2018 as oral presentations

Guest Editorial: OPTIMAX 2013

In 2012 we were awarded an Erasmus Intensive Programme grant to facilitate OPTIMAX 2013, a three week duration residential summer school held within the UK during August 2013. The summer school helped to further develop student radiographer skills in optimising x-radiation dose and image quality. With a major emphasis on visual techniques to determine image quality, lesion visibility, lesion detection performance and physical measures of image quality (eg signal to noise ratio (SNR)) we conducted controlled laboratory experiments on phantoms using Computed Radiography, CT and Full Field Digital Mammography. Mathematical modelling was used for radiation dose estimation. Sixty seven people from 5 European countries participated. This included 49 PhD, MSc and BSc students. Discipline areas included radiography, physics, biomedical science and nuclear medicine

Radiographers' involvement in research activities and opinions on radiography research : A Nordic survey

INTRODUCTION: Radiographers' engagement in research is important for the development of evidence-based practice in radiography; however, radiographers' interest in research has rarely been reported. This study sought to ascertain radiographers' opinions about radiography research and investigate their involvement in research activities in four Nordic countries.METHODS: This study was conducted in Denmark, Finland, Norway and Sweden. A study-specific questionnaire was developed in English and adapted to each language of the study sample, and the content and face validity of the adaptations were evaluated. An online tool was used to collect the study data. The questionnaire link was distributed in September 2019 to radiographers working in clinical settings in four Nordic countries (n = 4572).RESULTS: The overall response rate was 14% (n = 662/4572). Research involvement was reported by 33% of the respondents; data collection was the main type of contribution. Radiographers who contributed to research were more likely to be male, have longer work experience, hold a master's or doctoral degree, work as managers and be employed in university hospitals. Nearly all agreed that radiography research is needed to promote the radiography profession and provide the evidence base for radiographic practice. However, only 14% were aware of the current research evidence regarding their professional field of specialisation, and 19% indicated that they developed current practices based on research evidence.CONCLUSION: The findings indicate that, although radiographers had positive attitudes towards radiography research, their involvement in research and utilisation of research evidence in practice is low.IMPLICATIONS FOR PRACTICE: Strategies should be developed to improve knowledge and skills related to evidence-based practice and stimulate radiographers' engagement in research

Facilitators for and barriers to radiography research in public healthcare in Nordic countries

Introduction:It has been suggested that the future of diagnostic imaging relies on engagement inresearch and evidence-based practice. This implies a role transition from a clinical radiographer to aclinical radiographer-researcher. Clinical radiographers’stimuli for engaging in research in Nordiccountries are unknown. This study aimed to address this gap.Methods:Cross-sectional data collection via an online questionnaire on facilitators for and barriers toparticipation in radiography research was carried out among 507 clinical radiographers in publichealthcare in the Nordic countries: Denmark, Finland, Norway and Sweden.Results:Support from colleagues (odds ratio [OR] 2.62) and other professionals (OR 2.74), and self-esteem in research skills (OR2.21), were facilitators for radiography research. Lack of knowledgeand skills to conduct research (OR 2.48) was revealed to hinder radiographers’participation in research.The absence of a radiography research culture in the workplace explained non-participation in research(OR 1.75).Conclusion:This study revealed significant factors for clinical radiographers’participation in research.Implications for practice:A strategy for establishing a radiography research culture in healthcare isproposed that is novel for the context. Management support for knowledge development and activityleading to inter-professional research projects across knowledgefields, provision of a radiographyresearch lead and acknowledgement of radiography research among colleagues signify the establishmentof the culture. These prerequisites might provide a paradigm change towards not only the symbiosis of aclinical radiographer and an autonomous researcher but also a partner who adds radiography research toevidence-based practice in diagnostic imaging