ANNUAL EXPOSURE OF THE SWISS POPULATION FROM MEDICAL IMAGING IN 2018.

Nationwide surveys on radiation dose to the population from medical imaging are recommended in order to follow trends in population exposure. The goal of the 2018 survey was to investigate the current exposure. The invoice coding information was collected in five university hospitals and large clinics. To improve the estimation of the effective dose delivered in computed tomography (CT), we collected dose data from different Dose Archiving Communication Systems. On average, we found that 1.2 radiological examinations per year and per inhabitant were performed. Dental radiography was the most frequent examination (48% of all the X-ray examinations), followed by conventional radiography (36%) and CT (11%). The average annual effective dose was estimated to be 1.48 mSv per inhabitant, with CT representing 64% of that dose. Our results show that the exposure of the Swiss population from medical imaging has remained stable since 2013, despite a 15% increase in the number of CT examinations.

Establishment of national diagnostic reference levels in dental cone beam computed tomography in Switzerland.

OBJECTIVES: The aim of this study was to establish diagnostic reference levels (DRLs) in the field of dental maxillofacial and ear-nose-throat (ENT) practices using cone beam CT (CBCT) in Switzerland. METHODS: A questionnaire was sent to owners of CBCTs in Switzerland; to a total of 612 institutions. The answers were analyzed for each indication, provided that enough data were available. The DRLs were defined as the 75th percentile of air kerma product distribution (PKA). RESULTS: 227 answers were collected (38% of all centers). Third quartile of PKA values were obtained for five dental indications: 662 mGy cm² for wisdom tooth, 683 mGy cm² for single tooth implant treatment, 542 mGy cm² for tooth position anomalies, 569 mGy cm² for pathological dentoalveolar modifications, and 639 mGy cm² for endodontics. The standard field of view (FOV) size of 5 cm in diameter x 5 cm in height was proposed. CONCLUSIONS: Large ranges of FOV and PKA were found for a given indication, demonstrating the importance of establishing DRLs as well as FOV recommendations in view of optimizing the present practice. For now, only DRLs for dental and maxillofacial could be defined; because of a lack of ENT data, no DRL values for ENT practices could be derived from this survey.

Exposure of the Swiss population by medical x-rays: 2008 review.

Nationwide surveys on radiation dose to the population from medical radiology are recommended in order to follow the trends in population exposure and ensure radiation protection.The last survey in Switzerland was conducted in 1998,and the annual effective dose from medical radiology was estimated to be 1 mSv y j(-1) per capita. The purpose of this work was to follow the trends in diagnostic radiology between 1998 and 2008 in Switzerland and determine the contribution of different modalities and types of examinations to the collective effective dose from medical x-rays. For this reason, an online database(www.raddose.ch) was developed. All healthcare providers who hold a license to run an x-ray unit in the country were invited to participate in the survey. More than 225 examinations, covering eight radiological modalities, were included in the survey. The average effective dose for each examination was reassessed. Data from about 3,500 users were collected (42% response rate). The survey showed that the annual effective dose was 1.2 mSv/capita in 2008. The most frequent examinations are conventional and dental radiographies (88%). The contribution of computed tomography was only 6% in terms of examination frequency but 68% in terms of effective dose. The comparison with other countries showed that the effective dose per capita in Switzerland was in the same range as in other countries with similar healthcare systems, although the annual number of examinations performed in Switzerland was higher.

Ethical issues of medical missions: the clinicians' view.

Surgery is an important part of health care worldwide. Without access to surgical treatments, morbidity and mortality increase. Access to surgical treatment is a significant problem in global public health because surgical services are not equally distributed in the world. There is a disproportionate scarcity of surgical access in low-income countries. There are many charitable organizations around the world that sponsor surgical missions to under served nations. One such organization is Operation Smile International, a group with which both authors have volunteered. This paper will describe the purpose and processes involved in Operation Smile and identify some of the key ethical issues that arise in short term medical volunteer work highlighting the importance of sustainability.

Effectiveness of protective patient equipment for CT: an anthropomorphic phantom study.

Protective patient equipment for CT examinations is not routinely provided. The aim of this study was to determine whether, and if so what, specific protective equipment is beneficial during CT scans. The absorbed organ doses and the effective doses for thorax, abdomen/pelvis and brain CT investigation with and without the use of protective patient equipment have been determined and compared. All measurements were carried out on modern multislice CT scanner using an anthropomorphic phantom and thermoluminescence dosemeters. The measurements show that protective equipment reduces the dose within the scattered beam area. The highest organ dose reduction was found in organs that protrude from the trunk like the testes or the female breasts that can largely be covered by the protective equipment. The most reduction of the effective dose was found in the male abdomen/pelvis examination (0.32 mSv), followed by the brain (0.11 mSv) and the thorax (0.06 mSv). It is concluded that the use of protective equipment can reduce the applied dose to the patient.

Healthcare experiences of women with visual impairment.

PURPOSE: This investigation was a secondary analysis of focus group transcripts to address the question of how women with low vision or blindness have experienced healthcare. DESIGN: Secondary analysis of qualitative data was performed on transcripts from 2 focus groups. SETTING: These focus groups were conducted at an agency serving visually impaired people in Philadelphia. SAMPLE: The 2 focus groups included 7 and 11 women, respectively, having low-vision or who are blind who had been part of an original study of reaching hard-to-reach women with disabilities. METHODS: Content analysis for the identification of thematic clusters was performed on transcriptions of the focus group data. FINDINGS: Findings are consistent with existing research on the health needs of women with disabilities but add specific understanding related to visual impairment. Six thematic categories were identified: health professionals' awareness, information access, healthcare access, isolation, the need for self-advocacy, and perception by others. CONCLUSIONS AND IMPLICATIONS: Secondary analysis of qualitative data affords in-depth understanding of a particular subset of participants within a larger study. Clinical nurse specialists and other health professionals need to increase their sensitivity to the challenges faced by women with visual impairment, and plan and provide care accordingly. Health professions students need to be prepared to interact with people who are visually impaired and healthcare settings need to respond to their needs.

Progress in ethical decision making in the care of the dying.

Practitioners in critical care have made a significant progress in caring for dying patients in critical care by taking advantage of the suggestions from their professional groups. Progress has been made in responding to and controlling patients' pain. Major initiatives from the Joint Commission and the American Pain Society have helped direct this improvement. Palliative care consultations as well as ethics consultations have improved symptom control in the critically ill. Issues of consent have been problematic for dying patients in critical care especially in the area of discontinuing therapies. But, better policies related to advance directives have been developed to ensure good care. Spiritual care has received more attention, and now chaplains are recognized by the Society for Critical Care Medicine as integral to the critical care team. The American Association of Critical-Care Nurses has been a leader in improving end-of-life issues and continues to spearhead many projects to improve end-of-life care.

Views of African American Nursing Home residents about living wills.

Advance directives may be understood differently by various cultural and racial groups. These differences need to be identified so that individualized treatment decisions can be made according to patient preferences and communicated to clinicians. This exploratory, descriptive, qualitative research asked elderly African American nursing home residents why they had not completed a living will. Focus groups were conducted at 3 nursing homes and the participants spoke of: 1) not wanting artificial life-supporting treatments, 2) not being asked about living wills, 3) the importance of their families in the decision-making process, 4) the role of physicians in end-of-life care, and 5) having a living will was probably a good idea. Elderly nursing home residents would benefit from discussions within their family and cultural community about goals of therapy at the end of life that may lead to increased use of advanced directive documents.

Perspectives of women with disabilities on reaching those who are hard to reach.

Healthcare needs of women with disabilities are often neglected, even for women who are well connected to the community and to the healthcare system. So-called "hard-to-reach" women, whose degree of disability impedes use of community resources, have even greater difficulty obtaining health care. The purpose of this study was to gain insight into the perceptions of women with mobility and sensory limitations about several healthcare issues that may affect them: barriers to obtaining care, sources of information about health issues, ways to improve access to care, and ways to help hard-to-reach women overcome barriers to health care and health information. Researchers conducted six focus groups, comprising 43 women with limitations of mobility, hearing, or vision. To validate the women's input, researchers conducted two additional focus groups: the first comprised female physicians with special interest in the health care of women with disabilities, and the second included professional administrative staff of agencies that provide services for people with disabilities. In several cases, members of the physician and agency focus groups were themselves women with disabilities. In addition, 16 women with disabilities participated in an online survey; their responses were used to validate the findings of the face-to-face focus groups. Transcribed data were content analyzed and 10 themes identified. Seven of those themes are discussed in this article: communication barriers; lack of knowledge and awareness among healthcare providers; access issues; working the system; system issues; outreach to healthcare providers; and reaching hard-to-reach women. The findings of this study can provide direction to development of more effective outreach to hard-to-reach women with disabilities, resulting in better integration of healthcare services for this population.