Concurrent Computer-Aided Detection Improves Reading Time of Digital Breast Tomosynthesis and Maintains Interpretation Performance in a Multireader Multicase Study.

OBJECTIVE: Digital breast tomosynthesis (DBT) is more accurate than full-field digital mammography alone but requires a longer reading time. A radiologist reader study evaluated the use of concurrent computer-aided detection (CAD) to shorten the reading time while maintaining interpretation performance. MATERIALS AND METHODS: A CAD system was developed to detect suspicious soft-tissue densities in DBT planes. Abnormalities are extracted from the plane in which they are detected and blended into the corresponding synthetic image. The study used an enriched sample of 240 DBT cases with 68 malignancies in 61 patients. Twenty radiologists retrospectively reviewed all 240 cases in a multireader multicase crossover design to compare reading time and performance with and without CAD. The performance of CAD alone was also evaluated. RESULTS: Reading time improved by 29.2% with CAD (95% CI, 21.1-36.5%; p < 0.01). Reader performance, measured by ROC AUC, was noninferior with CAD (p < 0.01). The mean AUC increased from 0.841 without to 0.850 with CAD (95% CI, -0.012 to 0.030). Mean sensitivity increased from 0.847 without to 0.871 with CAD (difference 95% CI, -0.005 to 0.055), showing a 0.033 increase in sensitivity for cases with soft-tissue densities (95% CI, -0.002 to 0.068). Mean specificity decreased from 0.527 without to 0.509 with CAD (difference 95% CI, -0.041 to 0.005), and mean recall rate for noncancers slightly increased from 0.474 without to 0.492 with CAD (difference 95% CI, -0.006 to 0.041). CONCLUSION: Concurrent use of CAD with DBT resulted in 29.2% faster reading time, while maintaining reader interpretation performance.

How many research nurses for how many clinical trials in an oncology setting? Definition of the Nursing Time Required by Clinical Trial-Assessment Tool (NTRCT-AT).

Few resources are available to quantify clinical trial-associated workload, needed to guide staffing and budgetary planning. The aim of the study is to describe a tool to measure clinical trials nurses' workload expressed in time spent to complete core activities. Clinical trials nurses drew up a list of nursing core activities, integrating results from literature searches with personal experience. The final 30 core activities were timed for each research nurse by an outside observer during daily practice in May and June 2014. Average times spent by nurses for each activity were calculated. The "Nursing Time Required by Clinical Trial-Assessment Tool" was created as an electronic sheet that combines the average times per specified activities and mathematic functions to return the total estimated time required by a research nurse for each specific trial. The tool was tested retrospectively on 141 clinical trials. The increasing complexity of clinical research requires structured approaches to determine workforce requirements. This study provides a tool to describe the activities of a clinical trials nurse and to estimate the associated time required to deliver individual trials. The application of the proposed tool in clinical research practice could provide a consistent structure for clinical trials nursing workload estimation internationally.

Data Domotopia: introduction to the quantitative survey.

This paper describes the Data Domotopia a 2300 + respondent self-administered web-based survey. It includes 100 + multi-purpose items about home-making and stillness in a moving world. We suppose that home-making can reveal coping strategies and resilience practices to make everyday life work - as home is a central location in people's activity-travel patterns. To describe this phenomenon, the concept of Domotopia is introduced, defining how people arrange, use, and experience their homes to cope with the pathologies of accelerated and liquid modernity (Bauman 2005). While the Data Domotopia is based on a mixed-method combining qualitative and quantitative material, this paper focuses mainly on the description of the questionnaire - which is organized into three interrelated layers: the dwelling, the dwellers, and the neighborhood. Each of these layers unfolds in functional, social, emotional and sensory components. The survey covers most of the contemporary issues related to home-making. This includes the domestic space and gender issues; the socio-spatial resources (mobility, action space, core, and wider social network); lifestyles, ideals, and residential aspiration; time pressures, time use, organization and stress; equipment, rules and arrangements; interpersonal relations, cohabitation and negotiation, dominance and power. Intakes on the Data Domotopia is given by two concrete cases about the time-space coverage of the habitual action space, and about inter-personal task allocation. These examples show the potential of the data to study domocentric stillness and resilience to urban pathologies. The data - aggregated to the infra-communal level - is available for research purposes.

'What about the coffee break?': Designing virtual conference spaces for conviviality.

Geography, like many other disciplines, is reckoning with the carbon intensity of its practices and rethinking how activities such as annual meetings are held. The Climate Action Task Force of the American Association of Geographers (AAG), for example, was set up in 2019 and seeks to transform the annual conference in light of environmental justice concerns. Mirroring shifts it geographic practice across the globe, these efforts point to a need to understand how new opportunities for knowledge production such as online events can operate effectively. In this article, we offer suggestions for best practice in virtual spaces arising from our Material Life of Time conference held in March 2021, a two day global event that ran synchronously across 15 time zones. Given concerns about lack of opportunities for informal exchanges at virtual conferences, or the "coffee break problem", we designed the event to focus particularly on opportunities for conviviality. This was accomplished through a focus on three key design issues: the spatial, the temporal and the social. We review previous work on the benefits and drawbacks of synchronous and asynchronous online conference methods and the kinds of geographic communities they might support. We then describe our design approach and reflect on its effectiveness via a variety of feedback materials. We show that our design enabled high delegate satisfaction, a sense of conviviality, and strong connections with new colleagues. However we also discuss the problems with attendance levels and external commitments which hampered shared time together. We thus call for collective efforts to support the 'event time' of online meetings, rather than expectations to fit them around everyday tasks. Even so, our results suggest that synchronous online events need not result in geographical exclusions linked to time zone differences, and we outline further recommendations for reworking the spacetimes of the conference.

Determinants of Time to Care for Children and Adolescents With Disabilities.

Time use studies uncover the organization of daily routine of families of children with disabilities. The objective of this study is to identify determinants of time spent caring for children/adolescents with cerebral palsy (CP), autism spectrum disorder (ASD), and typical development (TD). Participants were caregivers of children/adolescents with/without disability. Structural equation modeling tested a proposed model of time spent in child care. The variables in the model were as follows: questionnaire (families' socioeconomic status [SES]), children's functioning (The Pediatric Evaluation of Disability Inventory-Computer Adaptive Test [PEDI-CAT]); hours of care (daily diaries), number of adaptations used, and help with child care (parents' report). Distinct variable combinations explained 78% of the variation in the time to care (TD model), followed by 42% (ASD) and 29% (CP). Adaptations indirectly affected time to care through its effect on functioning (CP); family's SES affected functioning through its effect on adaptation use (ASD). In conclusion, knowledge of factors affecting caregivers' time spent on children's care help occupational therapists implement family-centered strategies.

Psychological Impact of the COVID-19 Pandemic on Licensed Full-Time Practicing Nurses Undertaking Part-Time Studies in Higher Education: A Cross-Sectional Study.

Frontline nurses face an unpreceded situation with the coronavirus disease (COVID-19) pandemic, and many report suffering from physical and psychological stress. This online, cross-sectional survey used questionnaires, such as the Generalized Anxiety Disorder (GAD-7) questionnaire, the Patient Health Questionnaire (PHQ-2), the Connor-Davidson Resilience Scale, stress-related questions, and Brief Coping Orientation to Problems Experienced (Brief-COPE), to determine the psychological impact of COVID-19 on licensed full-time practicing nurses undertaking part-time studies in higher education. Recruitment commenced from August to September 2020; 385 students were approached, and 124 completed the survey (response rate: 32%). Most of the respondents were frontline nurses working in public sectors (89.5%), 29% of whom reported symptoms of depression, and 61.3% reported mild to severe levels of anxiety. The GAD-7 was significantly associated with the resilience score (ß = -0.188; p = 0.008) and exhaustion (ß = 0.612; p < 0.001). The PHQ-2 was significantly associated with 'anxiety about infection' (ß = 0.071; p = 0.048). A lower anxiety level was significantly associated with a higher resilience level and a lower level of exhaustion, and a lower depression level was significantly associated with a lower anxiety about infection. Nursing programs incorporating resilience building may mitigate psychological distress of the study population.

Metrics for assessing physician activity using electronic health record log data.

Electronic health record (EHR) log data have shown promise in measuring physician time spent on clinical activities, contributing to deeper understanding and further optimization of the clinical environment. In this article, we propose 7 core measures of EHR use that reflect multiple dimensions of practice efficiency: total EHR time, work outside of work, time on documentation, time on prescriptions, inbox time, teamwork for orders, and an aspirational measure for the amount of undivided attention patients receive from their physicians during an encounter, undivided attention. We also illustrate sample use cases for these measures for multiple stakeholders. Finally, standardization of EHR log data measure specifications, as outlined here, will foster cross-study synthesis and comparative research.

Real-time powder diffraction studies of energy materials under non-equilibrium conditions.

Energy materials form the central part of energy devices. An essential part of their function is the ability to reversibly host charge or energy carriers, and analysis of their phase composition and structure in real time under non-equilibrium conditions is mandatory for a full understanding of their atomic-scale functional mechanism. Real-time powder diffraction is increasingly being applied for this purpose, forming a critical step in the strategic chemical engineering of materials with improved behaviour. This topical review gives examples of real-time analysis using powder diffraction of rechargeable battery electrodes and porous sorbent materials used for the separation and storage of energy-relevant gases to demonstrate advances in the insights which can be gained into their atomic-scale function.

Improving digital breast tomosynthesis reading time: A pilot multi-reader, multi-case study using concurrent Computer-Aided Detection (CAD).

PURPOSE: Evaluate concurrent Computer-Aided Detection (CAD) with Digital Breast Tomosynthesis (DBT) to determine impact on radiologist performance and reading time. MATERIALS AND METHODS: The CAD system detects and extracts suspicious masses, architectural distortions and asymmetries from DBT planes that are blended into corresponding synthetic images to form CAD-enhanced synthetic images. Review of CAD-enhanced images and navigation to corresponding planes to confirm or dismiss potential lesions allows radiologists to more quickly review DBT planes. A retrospective, crossover study with and without CAD was conducted with six radiologists who read an enriched sample of 80 DBT cases including 23 malignant lesions in 21 women. Area Under the Receiver Operating Characteristic (ROC) Curve (AUC) compared the readings with and without CAD to determine the effect of CAD on overall interpretation performance. Sensitivity, specificity, recall rate and reading time were also assessed. Multi-reader, multi-case (MRMC) methods accounting for correlation and requiring correct lesion localization were used to analyze all endpoints. AUCs were based on a 0-100% probability of malignancy (POM) score. Sensitivity and specificity were based on BI-RADS scores, where 3 or higher was positive. RESULTS: Average AUC across readers without CAD was 0.854 (range: 0.785-0.891, 95% confidence interval (CI): 0.769,0.939) and 0.850 (range: 0.746-0.905, 95% CI: 0.751,0.949) with CAD (95% CI for difference: -0.046,0.039), demonstrating non-inferiority of AUC. Average reduction in reading time with CAD was 23.5% (95% CI: 7.0-37.0% improvement), from an average 48.2 (95% CI: 39.1,59.6) seconds without CAD to 39.1 (95% CI: 26.2,54.5) seconds with CAD. Per-patient sensitivity was the same with and without CAD (0.865; 95% CI for difference: -0.070,0.070), and there was a small 0.022 improvement (95% CI for difference: -0.046,0.089) in per-lesion sensitivity from 0.790 without CAD to 0.812 with CAD. A slight reduction in specificity with a -0.014 difference (95% CI for difference: -0.079,0.050) and a small 0.025 increase (95% CI for difference: -0.036,0.087) in recall rate in non-cancer cases were observed with CAD. CONCLUSIONS: Concurrent CAD resulted in faster reading time with non-inferiority of radiologist interpretation performance. Radiologist sensitivity, specificity and recall rate were similar with and without CAD.

Dimensionamento de pessoal de enfermagem em unidades de terapia intensiva infantil: carga de trabalho versus legislação / Dimensionamiento de equipo de enfermería en unidades de terapia intensiva infantil: carga de trabajo versus legislación / Nursing staff sizing in pediatric intensive care units: workload versus legislation

RESUMO Objetivo: comparar o dimensionamento da equipe de enfermagem com o estabelecido segundo a carga de trabalho e a legislação. Método: estudo documental prospectivo realizado de 2017 a 2018 em seis unidades de terapia intensiva infantil no Paraná. A carga de trabalho foi mensurada pelo Nursing Activities Score; o dimensionamento foi baseado na legislação e escala de trabalho. Os dados foram comparados e a análise estatística utilizou intervalo de confiança bootstrap de 95%. Resultados: considerando-se 58 leitos, 80 prontuários e 412 avaliações de cuidado e carga de trabalho, o dimensionamento mostrou-se elevado em relação ao estipulado pela Resolução 543/2017 do Conselho Federal de Enfermagem em duas unidades, e em quatro pela Resolução 26/2012 da Agência Nacional de Vigilância Sanitária. Conclusão: os achados indicam necessidade de mudanças para adequado dimensionamento, incluindo-se a carga de trabalho, e mudanças na legislação. Ao se considerar unicamente as resoluções, é possível incorrer em super ou subdimensionamento.

RESUMEN: Objetivo: comparar el dimensionamiento entre la carga de trabajo efectiva del equipo de enfermería y lo que establece la legislación. Método: estudio documental prospectivo que se realizó de 2017 a 2018 en seis unidades de terapia intensiva infantil en Paraná. La carga de trabajo se midió por Nursing Activities Score; el dimensionamiento se basó en la legislación y en la escala de trabajo. Se compararon los datos y el análisis estadístico utilizó intervalo de confianza bootstrap de 95%. Resultados: considerándose 58 camas, 80 prontuarios y 412 evaluaciones de cuidado y carga de trabajo, el dimensionamiento se mostró elevado en relación a lo estableció la Resolución 543/2017 del Consejo Federal de Enfermería en dos unidades, y en cuatro por la Resolución 26/2012 de la Agencia Nacional de Vigilancia Sanitaria. Conclusión: se constató la necesidad de cambios para adecuar el dimensionamiento, incluyéndose la carga de trabajo, y cambio en la legislación. Considerándose solamente las resoluciones, es posible incurrir en super o sub dimensionamiento.

ABSTRACT Objective: To compare nursing staff sizing in the relevant legislation according to the workload. Method: Prospective documentary study conducted in the 2017- 2018 period in six pediatric intensive care units for children in Paraná. The workload was measured with the use of the Nursing Activities Score; the sizing was based on legislation and work schedules. Data were compared, and a bootstrap confidence interval of 95% was used in statistical analysis. Results: Considering 58 beds, 80 medical records and 412 assessments of care and workload, the nursing staff was oversized, if compared to the stipulations of the Normative Resolution No 543/2017 of Brazil's Federal Council of Nursing (COFEN) in two units, and in four units, according to Normative Resolution No 26/2012 of the National Health Surveillance Agency (ANVISA). Conclusion: The findings indicate the need for changes to obtain a proper staff sizing, including workload, and changes in legislation. When only the normative resolutions are considered, oversizing or undersizing may occur.