The Assessment of Competency in Thoracic Sonography (ACTS) scale: validation of a tool for point-of-care ultrasound
| Autor: | Seth Koenig, Vicki E. Noble, Pierre Kory, Jordan Richard Schoenherr, Robert Arntfield, Robert J. Guo, Scott J. Millington, Haney Mallemat |
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| Rok vydání: | 2017 |
| Předmět: |
lcsh:Medical physics. Medical radiology. Nuclear medicine
medicine.medical_specialty Scale (ratio) lcsh:R895-920 media_common.quotation_subject education 030204 cardiovascular system & hematology Education 03 medical and health sciences 0302 clinical medicine Rating scale Content validity Medicine Quality (business) Medical physics Reliability (statistics) media_common Thoracic ultrasound Radiological and Ultrasound Technology business.industry 030208 emergency & critical care medicine Assessment tools Subject-matter expert Learning curve Point-of-care Structured interview Original Article Radiology business |
| Zdroj: | Critical Ultrasound Journal Critical Ultrasound Journal, Vol 9, Iss 1, Pp 1-8 (2017) |
| ISSN: | 2036-7902 2036-3176 |
| DOI: | 10.1186/s13089-017-0081-0 |
| Popis: | Background The rapid adoption of point-of-care ultrasound (POCUS) has created a need to develop assessment tools to ensure that learners can competently use these technologies. In this study, the authors developed and tested a rating scale to assess the quality of point-of-care thoracic ultrasound studies performed by novices. In Phase 1, the Assessment of Competency in Thoracic Sonography (ACTS) scale was developed based on structured interviews with subject matter experts. The tool was then piloted on a small series of ultrasound studies in Phase 2. In Phase 3 the tool was applied to a sample of 150 POCUS studies performed by ten learners; performance was then assessed by two independent raters. Results Evidence for the content validity of the ACTS scale was provided by a consensus exercise wherein experts agreed on the general principles and specific items that make up the scale. The tool demonstrated reasonable inter-rater reliability despite minimal requirements for evaluator training and displayed evidence of good internal structure, with related scale items correlating well with each other. Analysis of the aggregate learning curves suggested a rapid early improvement in learner performance with slower improvement after approximately 25–30 studies. Conclusions The ACTS scale provides a straightforward means to assess learner performance. Our results support the conclusion that the tool is an effective means of making valid judgments regarding competency in point-of-care thoracic ultrasound, and that the majority of learner improvement occurs during their first 25–30 practice studies. |
| Databáze: | OpenAIRE |
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