Objectives
To assess the sufficiency of a structured course for the use of lung ultrasound in pregnant women and provide the interrater agreement of attendees with different expertise.
Methods
10 obstetricians with different expertise working in the COVID‐19 setting participated to a single day, structured course given by a radiologist and an obstetrics & gynecology consultant experienced in performing LUS on pregnant women. Following a theoretical presentation, attendees underwent a hands‐on course on 10 healthy and 5 pregnant women infected with COVID‐19. Success was assessed with using pre‐defined criteria. Instructors scored attendees consensually with a dichotomous (pass/fail) result for the following headings: pleural integrity, lung sliding sign, consolidations, A‐ & B‐lines, light beam, white lung and artefacts. Secondly, attendees were asked to score a total of 12 still images and 12 videoclips consisting of 3 images/videoclips for each possible score (0–3). The Krippendorff's alpha test was used to assess the interrater agreement.
Results
Out of 10 obstetricians, 8 obstetricians were found successful for all 8 characteristic features defined as minimum criteria (100%); 2 obstetricians were found successful in 7 of 8 criteria (87.5%). The interrater agreement of attendees were found as moderate to good (α = 0.757, 95%CI = 0.700–0.810) for rating still images (figure 1) and good to excellent (α = 0.882, 95%CI = 0.852–0.910) for videoclips.
Conclusions
An adequate level of expertise in the use of lung ultrasound can be achieved with a short training course. After the training, observers showed good interrater agreement for interpreting lung ultrasound clips of healthy women and women with COVID‐19.
Supporting information can be found in the online version of this abstract
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Supplementary Materials
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