Objective Skills Assessment and Construct Validation of a Virtual Reality Temporal Bone Simulator

Khemani, Sameer; Arora, Asit; Singh, Arvind; Tolley, Neil; Darzi, Ara

doi:10.1097/mao.0b013e31825e7977

Cited by 70 publications

(70 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…First, novice vs. expert performance can be discriminated in VR simulation of temporal bone surgery 32–34 and many simulator-based metrics correlate with experience 1,35 . Second, VR simulation performance has been demonstrated to be similar to the dissection performance in trainees 36 and VR simulation training seems to be superior to training methods such as video demonstration 37 .…”

Section: Introductionmentioning

confidence: 99%

Otologic Skills Training

Wiet

Sørensen

Andersen

2017

Otolaryngologic Clinics of North America

View full text Add to dashboard Cite

Synopsis This review presents a summary of the current activity of simulation training for otologic skills. Simulation training has been demonstrated in a large spectrum of skills from simple otoscopy to advanced temporal bone surgical procedures and these are individually addressed. There is a wide variety of educational approaches, assessment tools and simulators in use including simple low cost task trainers to complex computer based virtual reality systems. A systematic approach to otologic skills training using adult learning theory concepts such as repeated and distributed practice, self-directed learning, and mastery learning is necessary for these educational interventions to be effective. Future directions include development of valid, universally accepted measures of performance to assess efficacy of simulation training interventions and for complex procedures, improvement in fidelity based on the educational goals for the particular skill.

show abstract

Section: Introductionmentioning

confidence: 99%

Otologic Skills Training

Wiet

Sørensen

Andersen

2017

Otolaryngologic Clinics of North America

View full text Add to dashboard Cite

show abstract

“…Perhaps the most significant advantage is the ability to objectively monitor and assess trainee actions, providing a basis for formative and summative metrics [13][14][15][16][17][18]. Further, there may be utility in competency based residency training.…”

Section: Haptic Simulation For Surgical Trainingmentioning

confidence: 99%

“…The validity of haptic trainers has been studied, particularly with reference to surgical performance and construct validity [13,[15][16][17]. Direct comparison to performance in standard cadaveric dissection [12,13] have previously shown mixed results.…”

Section: Haptic Simulation For Surgical Trainingmentioning

confidence: 99%

<query ID="Q1"><query_paragraph>Article title: The title in the manuscript ¿Comparison of cadaveric and isomorphic virtual haptic simulation in temporal bone training¿ differs from the one reflected in the submission system which is ¿Comparison of cadaveric and isomorphic virtual haptic simulation in temporal bone training (Poliquin 2014)¿. We have proceeded and followed the manuscript. Please check and advise if action taken is appropriate.</query_paragraph></query> Comparison of c

Wong

Unger

Kraut

et al. 2014

J Otolaryngol - Head Neck Surg

View full text Add to dashboard Cite

Background: Virtual surgery may improve learning and provides an opportunity for pre-operative surgical rehearsal. We describe a novel haptic temporal bone simulator specifically developed for multicore processing and improved visual realism. A position locking algorithm for enhanced drill-bone interaction and haptic fidelity is further employed. The simulation construct is evaluated against cadaveric education. Methods: A voxel-based simulator was designed for multicore architecture employing Marching Cubes and Laplacian smoothing to perform real-time haptic and graphic rendering of virtual bone. Ten Otolaryngology trainees dissected a cadaveric temporal bone (CTB) followed by a virtual isomorphic haptic model (VM) based on derivative microCT data. Participants rated 1) physical characteristics, 2) specific anatomic constructs, 3) usefulness in skill development and 4) perceived educational value. The survey instrument employed a Likert scale (1-7). Results: Residents were equivocal about the physical properties of the VM, as cortical (3.2 ± 2.0) and trabecular (2.8 ± 1.6) bone drilling character was appraised as dissimilar to CTB. Overall similarity to cadaveric training was moderate (3.5 ± 1.8). Residents generally felt the VM was beneficial in skill development, rating it highest for translabyrinthine skull-base approaches (5.2 ± 1.3). The VM was considered an effective (5.4 ± 1.5) and accurate (5.7 ± 1.4) training tool which should be integrated into resident education (5.5 ± 1.4). The VM was thought to improve performance (5.3 ± 1.8) and confidence (5.3 ± 1.9) and was highly rated for anatomic learning (6.1 ± 1.9). Conclusion: Study participants found the VM to be a beneficial and effective platform for learning temporal bone anatomy and surgical techniques. They identify some concern with limited physical realism likely owing to the haptic device interface. This study is the first to compare isomorphic simulation in education. This significantly removes possible confounding features as the haptic simulation was based on derivative imaging.

show abstract

“…The time to completion was reported in [94][95][96][97] as an important metric for measuring users' proficiency. Efficiency measurements such as the magnitude of the drilling force [39,[94][95][96], the length of the motion trajectory [96], the drilling velocity [39], the amount of tissue removed [39,94,96] and the amount (or frequency) of the operations [96] such as number of washes and number of drill activations were calculated.…”

Section: Construct Validity Studymentioning

confidence: 99%

“…In the area of Otolaryngology, automatic metrics have been designed for simulators such as the Stanford Surgical Simulator [39], the Voxel-Man Tempsurg [94] and the Mesiseus Surgical Drilling Simulator [95] for temporal bone surgery, and MSESS [96] and ES3 [97] for sinus surgery. The time to completion was reported in [94][95][96][97] as an important metric for measuring users' proficiency.…”

Section: Construct Validity Studymentioning

confidence: 99%

Virtual Reality Simulator for Training in Myringotomy with Tube Placement

2016

View full text Add to dashboard Cite

Myringotomy refers to a surgical incision in the eardrum, and it is often followed by ventilation tube placement to treat middle-ear infections. The procedure is difficult to learn; hence, the objectives of this work were to develop a virtual-reality training simulator, assess its face and content validity, and implement quantitative performance metrics and assess construct validity.A commercial digital gaming engine (Unity3D) was used to implement the simulator with support for 3D visualization of digital ear models and support for major surgical tasks. A haptic arm co-located with the stereo scene was used to manipulate virtual surgical tools and to provide force feedback.A questionnaire was developed with 14 face validity questions focusing on realism and 6 content validity questions focusing on training potential. Twelve participants from the

show abstract

Objective Skills Assessment and Construct Validation of a Virtual Reality Temporal Bone Simulator

Abstract: Simulator-generated objective metrics can be used to differentiate individuals of differing levels of experience using a standardized temporal bone task. VR simulation has potential as a training tool and may have a role in both formative and summative assessment.

Cited by 70 publications

References 18 publications

Otologic Skills Training

Otologic Skills Training

Virtual Reality Simulator for Training in Myringotomy with Tube Placement

Contact Info

Product

Resources

About