The association of attentional foci and image interpretation accuracy in novices interpreting lung ultrasound images: an eye-tracking study
| dc.contributor.author | Lee, Matthew | |
| dc.contributor.author | Desy, Janeve | |
| dc.contributor.author | Tonelli, Ana C. | |
| dc.contributor.author | Walsh, Michael H. | |
| dc.contributor.author | Ma, Irene W. Y. | |
| dc.date.accessioned | 2023-09-17T00:02:39Z | |
| dc.date.available | 2023-09-17T00:02:39Z | |
| dc.date.issued | 2023-09-11 | |
| dc.date.updated | 2023-09-17T00:02:39Z | |
| dc.description.abstract | Abstract It is unclear, where learners focus their attention when interpreting point-of-care ultrasound (POCUS) images. This study seeks to determine the relationship between attentional foci metrics with lung ultrasound (LUS) interpretation accuracy in novice medical learners. A convenience sample of 14 medical residents with minimal LUS training viewed 8 LUS cineloops, with their eye-tracking patterns recorded. Areas of interest (AOI) for each cineloop were mapped independently by two experts, and externally validated by a third expert. Primary outcome of interest was image interpretation accuracy, presented as a percentage. Eye tracking captured 10 of 14 participants (71%) who completed the study. Participants spent a mean total of 8 min 44 s ± standard deviation (SD) 3 min 8 s on the cineloops, with 1 min 14 s ± SD 34 s spent fixated in the AOI. Mean accuracy score was 54.0% ± SD 16.8%. In regression analyses, fixation duration within AOI was positively associated with accuracy [beta-coefficients 28.9 standardized error (SE) 6.42, P = 0.002). Total time spent viewing the videos was also significantly associated with accuracy (beta-coefficient 5.08, SE 0.59, P < 0.0001). For each additional minute spent fixating within the AOI, accuracy scores increased by 28.9%. For each additional minute spent viewing the video, accuracy scores increased only by 5.1%. Interpretation accuracy is strongly associated with time spent fixating within the AOI. Image interpretation training should consider targeting AOIs. | |
| dc.identifier.citation | The Ultrasound Journal. 2023 Sep 11;15(1):36 | |
| dc.identifier.uri | https://doi.org/10.1186/s13089-023-00333-6 | |
| dc.identifier.uri | https://hdl.handle.net/1880/117078 | |
| dc.identifier.uri | https://doi.org/10.11575/PRISM/41922 | |
| dc.language.rfc3066 | en | |
| dc.rights.holder | World Interactive Network Focused on Critical UltraSound (WINFOCUS), Milano | |
| dc.title | The association of attentional foci and image interpretation accuracy in novices interpreting lung ultrasound images: an eye-tracking study | |
| dc.type | Journal Article |