Faster Time to Treatment Decision of Viscoelastic Coagulation Test Results through Improved Perception with the Animated Visual Clot: A Multicenter Comparative Eye-Tracking Study

Castellucci, Clara; Braun, Julia; Said, Sadiq; Roche, Tadzio R.; Nöthiger, Christoph B.; Spahn, Donat R.; Tscholl, David W.; Akbas, Samira

doi:10.3390/diagnostics12051269

Cited by 8 publications

(10 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It leads to a reduction in errors and an improvement in productivity, acceptance and user satisfaction [ 24 ]. There are some examples of such technologies based on the principles of situation awareness and user-centred design [ 39 , 40 , 41 ]. To help healthcare providers interpret the results of viscoelastic coagulation tests, Visual Clot, a new technology for alternative presentation of thromboelastometry data has been developed.…”

Section: Discussionmentioning

confidence: 99%

User Perceptions of ROTEM-Guided Haemostatic Resuscitation: A Mixed Qualitative–Quantitative Study

et al. 2023

Self Cite

View full text Add to dashboard Cite

Viscoelastic point-of-care haemostatic resuscitation methods, such as ROTEM or TEG, are crucial in deciding on time-efficient personalised coagulation interventions. International transfusion guidelines emphasise increased patient safety and reduced treatment costs. We analysed care providers’ perceptions of ROTEM to identify perceived strengths and areas for improvement. We conducted a single-centre, mixed qualitative–quantitative study consisting of interviews followed by an online survey. Using a template approach, we first identified themes in the responses given by care providers about ROTEM. Later, the participants rated six statements based on the identified themes on five-point Likert scales in an online questionnaire. Seventy-seven participants were interviewed, and 52 completed the online survey. By analysing user perceptions, we identified ten themes. The most common positive theme was “high accuracy”. The most common negative theme was “need for training”. In the online survey, 94% of participants agreed that monitoring the real-time ROTEM temograms helps to initiate targeted treatment more quickly and 81% agreed that recurrent ROTEM training would be beneficial. Anaesthesia care providers found ROTEM to be accurate and quickly available to support decision-making in dynamic and complex haemostatic situations. However, clinicians identified that interpreting ROTEM is a complex and cognitively demanding task that requires significant training needs.

show abstract

Section: Discussionmentioning

confidence: 99%

User Perceptions of ROTEM-Guided Haemostatic Resuscitation: A Mixed Qualitative–Quantitative Study

et al. 2023

Self Cite

View full text Add to dashboard Cite

show abstract

“…In two visualisation technologies we previously developed, Visual Patient for patient monitoring and Visual Clot for rotational thromboelastometry, we found the positive effects observed in computer-based simulation studies [ 17 , 20 , 21 , 22 , 23 , 24 , 25 , 30 ] to persist in high-fidelity simulation studies [ 18 , 31 , 32 , 33 ]. The substantial effect sizes observed to date with these technologies demonstrates their significant potential to improve decision-making.…”

Section: Discussionmentioning

confidence: 99%

“…VB is a computer animation showing a virtual model of any given ABG situation by visualising the ABG parameters and their interactions as intuitive 3D icons. We developed it based on the principles of user-centred and situational-awareness-oriented design [ 7 ] and our experience with previously developed visualisations [ 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 ]. It follows the goal of situational-awareness-oriented interface design: to convey the information needed by the caregivers as quickly as possible and with the lowest cognitive effort [ 7 ].…”

Section: Methodsmentioning

confidence: 99%

Visual Blood, a 3D Animated Computer Model to Optimize the Interpretation of Blood Gas Analysis

et al. 2023

Self Cite

View full text Add to dashboard Cite

Acid–base homeostasis is crucial for all physiological processes in the body and is evaluated using arterial blood gas (ABG) analysis. Screens or printouts of ABG results require the interpretation of many textual elements and numbers, which may delay intuitive comprehension. To optimise the presentation of the results for the specific strengths of human perception, we developed Visual Blood, an animated virtual model of ABG results. In this study, we compared its performance with a conventional result printout. Seventy physicians from three European university hospitals participated in a computer-based simulation study. Initially, after an educational video, we tested the participants’ ability to assign individual Visual Blood visualisations to their corresponding ABG parameters. As the primary outcome, we tested caregivers’ ability to correctly diagnose simulated clinical ABG scenarios with Visual Blood or conventional ABG printouts. For user feedback, participants rated their agreement with statements at the end of the study. Physicians correctly assigned 90% of the individual Visual Blood visualisations. Regarding the primary outcome, the participants made the correct diagnosis 86% of the time when using Visual Blood, compared to 68% when using the conventional ABG printout. A mixed logistic regression model showed an odds ratio for correct diagnosis of 3.4 (95%CI 2.00–5.79, p < 0.001) and an odds ratio for perceived diagnostic confidence of 1.88 (95%CI 1.67–2.11, p < 0.001) in favour of Visual Blood. A linear mixed model showed a coefficient for perceived workload of −3.2 (95%CI −3.77 to −2.64) in favour of Visual Blood. Fifty-one of seventy (73%) participants agreed or strongly agreed that Visual Blood was easy to use, and fifty-five of seventy (79%) agreed that it was fun to use. In conclusion, Visual Blood improved physicians’ ability to diagnose ABG results. It also increased perceived diagnostic confidence and reduced perceived workload. This study adds to the growing body of research showing that decision-support tools developed around human cognitive abilities can streamline caregivers’ decision-making and may improve patient care.

show abstract

“…Visual Clot is an alternative visualization of rotational thromboelastometry (ROTEM) results, a viscoelastic coagulation test that allows the assessment of hemostasis from clot formation to clot dissolution. An algorithm transcribes existing parameters from the ROTEM and schematically creates an animated blood clot (Visual Clot) containing all hemostatic components necessary to interpret the results in real-time [ 20 , 23 , 26 ]. Video S2 in the Supplementary Materials shows an example of the Visual Clot.…”

Section: Methodsmentioning

confidence: 99%

Improved Task Performance, Low Workload, and User-Centered Design in Medical Diagnostic Equipment Enhance Decision Confidence of Anesthesia Providers: A Meta-Analysis and a Multicenter Online Survey

et al. 2022

Self Cite

View full text Add to dashboard Cite

Decision confidence—the subjective belief to have made the right decision—is central in planning actions in a complex environment such as the medical field. It is unclear by which factors it is influenced. We analyzed a pooled data set of eight studies and performed a multicenter online survey assessing anesthesiologists’ opinions on decision confidence. By applying mixed models and using multiple imputation to determine the effect of missing values from the dataset on the results, we investigated how task performance, perceived workload, the utilization of user-centered medical diagnostic devices, job, work experience, and gender affected decision confidence. The odds of being confident increased with better task performance (OR:1.27, 95%CI: 0.94 to 1.7; p = 0.12; after multiple imputation OR:3.19,95%CI: 2.29 to 4.45; p < 0.001) and when user-centered medical devices were used (OR:5.01, 95%CI: 3.67 to 6.85; p < 0.001; after multiple imputation OR:3.58, 95%CI: 2.65 to 4.85; p < 0.001). The odds of being confident decreased with higher perceived workload (OR: 0.94, 95%CI: 0.93 to 0.95; p < 0.001; after multiple imputation, OR:0.94, 95%CI: 0.93 to 0.95; p < 0.001). Other factors, such as gender, job, or professional experience, did not affect decision confidence. Most anesthesiologists who participated in the online survey agreed that task performance (25 of 30; 83%), perceived workload (24 of 30; 80%), work experience (28 of 30; 93%), and job (21 of 30; 70%) influence decision confidence. Improved task performance, lower perceived workload, and user-centered design in medical equipment enhanced the decision confidence of anesthesia providers.

show abstract

Faster Time to Treatment Decision of Viscoelastic Coagulation Test Results through Improved Perception with the Animated Visual Clot: A Multicenter Comparative Eye-Tracking Study

Cited by 8 publications

References 28 publications

User Perceptions of ROTEM-Guided Haemostatic Resuscitation: A Mixed Qualitative–Quantitative Study

User Perceptions of ROTEM-Guided Haemostatic Resuscitation: A Mixed Qualitative–Quantitative Study

Visual Blood, a 3D Animated Computer Model to Optimize the Interpretation of Blood Gas Analysis

Improved Task Performance, Low Workload, and User-Centered Design in Medical Diagnostic Equipment Enhance Decision Confidence of Anesthesia Providers: A Meta-Analysis and a Multicenter Online Survey

Contact Info

Product

Resources

About