Evidence map›Paper›PMID 31586251›Full record

ArticleSurgical endoscopy2020

Virtual pointer for gaze guidance in laparoscopic surgery.

Yuanyuan Feng, Hannah McGowan, Azin Semsar, Hamid R Zahiri, Ivan M George, Adrian Park, Andrea Kleinsmith, Helena Mentis

Abstract read
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In one paragraph

Article in Surgical endoscopy, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. HoloPointer: a virtual augmented reality pointer for laparoscopic surgery training.International journal of computer assisted radiology and surgery · 2021
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Yuanyuan FengDepartment of Information Systems, University of Maryland, Baltimore County, Baltimore, MD, USA. fengy1@umbc.edu.ORCID 0000-0003-4060-6261
Hannah McGowanDepartment of Information Systems, University of Maryland, Baltimore County, Baltimore, MD, USA.
Azin SemsarDepartment of Information Systems, University of Maryland, Baltimore County, Baltimore, MD, USA.
Hamid R ZahiriDepartment of Surgery, Anna Arundel Medical Center, Annapolis, MD, USA.
Ivan M GeorgeDepartment of Surgery, Johns Hopkins Medicine, Baltimore, MD, USA.
Adrian ParkDepartment of Surgery, Anna Arundel Medical Center, Annapolis, MD, USA.
Andrea KleinsmithDepartment of Information Systems, University of Maryland, Baltimore County, Baltimore, MD, USA.
Helena MentisDepartment of Information Systems, University of Maryland, Baltimore County, Baltimore, MD, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA challenge of laparoscopic surgery is learning how to interpret the indirect view of the operative field. Acquiring professional vision-understanding what to see and which information to attend to, is thereby an essential part of laparoscopic training and one in which trainers exert great effort to convey. We designed a virtual pointer (VP) that enables experts to point or draw free-hand sketches over an intraoperative laparoscopic video for a novice to see. This study aimed to investigate the efficacy of the virtual pointer in guiding novices' gaze patterns.

methodsWe conducted a counter-balanced, within-subject trial to compare the novices' gaze behaviors in laparoscopic training with the virtual pointer compared to a standard training condition, i.e., verbal instruction with un-mediated gestures. In the study, seven trainees performed four simulated laparoscopic tasks guided by an experienced surgeon as the trainer. A Tobii Pro X3-120 eye-tracker was used to capture the trainees' eye movements. The measures include fixation rate, i.e., the frequency of trainees' fixations, saccade amplitude, and fixation concentration, i.e., the closeness of trainees' fixations.

resultsNo significant difference in fixation rate or saccade amplitude was found between the virtual pointer condition and the standard condition. In the virtual pointer condition, trainees' fixations were more concentrated (p = 0.039) and longer fixations were more clustered, compared to the Standard condition (p = 0.008).

conclusionsThe virtual pointer effectively improved surgical trainees' in-the-moment gaze focus during the laparoscopic training by reducing their gaze dispersion and concentrating their attention on the anatomical target. These results suggest that technologies which support gaze training should be expert-driven and intraoperative to efficiently modify novices' gaze behaviors.

Indexed as

Fixation, OcularClinical CompetenceComputer-Assisted InstructionComputer SimulationEquipment DesignEye MovementsHumansLaparoscopySurgeonsEye trackingFixation concentrationGaze guidanceIntraoperative video annotationLaparoscopic training

Identifiers

PMID31586251

What OpenQuestion holds

Textmetadata
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.