Looks can be deceiving: Gaze pattern differences between novices and experts during placement of central lines

Chen, Hong En; Sonntag, Cheyenne C.; Pepley, David F.; Prabhu, Rohan; Han, David C.; Moore, Jason Z.; Miller, Scarlett R.

doi:10.1016/j.amjsurg.2018.11.007

Cited by 23 publications

(13 citation statements)

References 28 publications

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“…The differences between experts and novices found in our study coincide with those reported in CVA with other motion analysis systems for instruments and/or body parts, such as hand-track motion devices [15,22], gaze pattern analysis [23], and video analysis for eyehand coordination [24]. Specifically for 3D body motion tracking systems, as in our study, differences have been reported using body assessment in tracheostomy [17].…”

Section: Plos Onesupporting

confidence: 87%

“…Indeed, motion analysis of procedures that depend heavily on instrument manipulation focuses on the instrument movement’s biomechanics instead of the hand’s motion [ 19 , 26 ]. Also, when visual coordination is a critical component of the procedure, other variables are measured, such as gaze patterns [ 23 ]. We believe that both analyses (instrument motion and eye-tracking) are necessary to further describe differences between experts and novices in stage 1.…”

Section: Discussionmentioning

confidence: 99%

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Biomechanical analysis of expert anesthesiologists and novice residents performing a simulated central venous access procedure

et al. 2021

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Background Central venous access (CVA) is a frequent procedure taught in medical residencies. However, since CVA is a high-risk procedure requiring a detailed teaching and learning process to ensure trainee proficiency, it is necessary to determine objective differences between the expert’s and the novice’s performance to guide novice practitioners during their training process. This study compares experts’ and novices’ biomechanical variables during a simulated CVA performance. Methods Seven experts and seven novices were part of this study. The participants’ motion data during a CVA simulation procedure was collected using the Vicon Motion System. The procedure was divided into four stages for analysis, and each hand’s speed, acceleration, and jerk were obtained. Also, the procedural time was analyzed. Descriptive analysis and multilevel linear models with random intercept and interaction were used to analyze group, hand, and stage differences. Results There were statistically significant differences between experts and novices regarding time, speed, acceleration, and jerk during a simulated CVA performance. These differences vary significantly by the procedure stage for right-hand acceleration and left-hand jerk. Conclusions Experts take less time to perform the CVA procedure, which is reflected in higher speed, acceleration, and jerk values. This difference varies according to the procedure’s stage, depending on the hand and variable studied, demonstrating that these variables could play an essential role in differentiating between experts and novices, and could be used when designing training strategies.

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Section: Plos Onesupporting

confidence: 87%

Section: Discussionmentioning

confidence: 99%

Biomechanical analysis of expert anesthesiologists and novice residents performing a simulated central venous access procedure

et al. 2021

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“…16 Specifically within CVC placement, experts fixated more on the ultrasonography whereas novices spent time tracking the needle and ultrasound probe. 22 Contrary to the current literature on gaze patterns in procedural education, this study focused on supervising the IBP teacher. We found that the use of the eye-tracking device for assessment of gaze metrics among supervising teachers is feasible and likely has some utility given the potential signal suggesting differences in gaze patterns among IBP teachers.…”

Section: Discussionmentioning

confidence: 99%

Feasibility and Utility of an Eye-Tracking Device for Assessing Teachers of Invasive Bedside Procedures

Kelm

Morrow

Kennedy

et al. 2020

Mayo Clinic Proceedings: Innovations, Quality & Outcomes

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Patient-related complications from invasive bedside procedures (IBPs) are attributed to the experience and proficiency of the operator. Furthermore, IBP complications by trainees may be due to practice variability and competency among IBP teachers. The use of gaze metrics technology to better understand the behaviors of IBP teachers may aid in the creation of faculty development checklists and, ultimately, reduce procedural complications. Prior research on gaze patterns has focused on the individual performing the procedure, but the goal of this pilot study was to assess gaze behaviors of supervising teachers of IBPs, which is a paradigm shift within procedural education. In this study, pulmonary and critical care medicine fellows placed a central venous catheter on a simulated task trainer as pulmonary and critical care medicine faculty supervised while wearing an eye-tracking device. Both quantitative and qualitative data were obtained. Gaze analysis was divided into 2 areas of interest (ultrasonography and procedure site) and 3 procedural tasks (venous puncture, dilation, and flushing the line). Study findings included the following: (1) calibration was easy and took seconds to complete, (2) the device is relatively comfortable and did not interfere with tasks, (3) a trend toward a higher fixation frequency and dwell time on the ultrasound images during the puncture segment, and (4) variations in fixation frequency on the ultrasound images among supervising IBP teachers. This study documents the feasibility of the eye-tracking device for assessing behaviors of supervisory IBP teachers. There may be a signal suggesting differences in gaze patterns among supervisory teachers, which warrants further study.

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“…The gaze data were mapped onto a still image [ 63 , 64 ] with assisted mapping feature [ 64 , 65 ]. After the assisted mapping was completed, we carefully checked the incorrect mapping points and manually re-mapped them [ 66 , 67 ].…”

Section: Methodsmentioning

confidence: 99%

Age-Related Differences in Fixation Pattern on a Companion Robot

2020

Sensors

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Recent studies have addressed the various benefits of companion robots and expanded the research scope to their design. However, the viewpoints of older adults have not been deeply investigated. Therefore, this study aimed to examine the distinctive viewpoints of older adults by comparing them with those of younger adults. Thirty-one older and thirty-one younger adults participated in an eye-tracking experiment to investigate their impressions of a bear-like robot mockup. They also completed interviews and surveys to help us understand their viewpoints on the robot design. The gaze behaviors and the impressions of the two groups were significantly different. Older adults focused significantly more on the robot’s face and paid little attention to the rest of the body. In contrast, the younger adults gazed at more body parts and viewed the robot in more detail than the older adults. Furthermore, the older adults rated physical attractiveness and social likeability of the robot significantly higher than the younger adults. The specific gaze behavior of the younger adults was linked to considerable negative feedback on the robot design. Based on these empirical findings, we recommend that impressions of older adults be considered when designing companion robots.

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Looks can be deceiving: Gaze pattern differences between novices and experts during placement of central lines

Cited by 23 publications

References 28 publications

Biomechanical analysis of expert anesthesiologists and novice residents performing a simulated central venous access procedure

Biomechanical analysis of expert anesthesiologists and novice residents performing a simulated central venous access procedure

Feasibility and Utility of an Eye-Tracking Device for Assessing Teachers of Invasive Bedside Procedures

Age-Related Differences in Fixation Pattern on a Companion Robot

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