Evidence map›Paper›PMID 35737430›Full record

ArticleJMIR formative research2022

Development of a Head-Mounted Holographic Needle Guidance System for Enhanced Ultrasound-Guided Neuraxial Anesthesia: System Development and Observational Evaluation.

Jaya Tanwani, Fahad Alam, Clyde Matava, Stephen Choi, Paul McHardy, Oskar Singer, Geraldine Cheong, Julian Wiegelmann

Registry-linked trialAbstract read
In one paragraph

Article in JMIR formative research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04028284 (Using Augmented Reality to 3D Map Needle Pathways in Real Time to Enhance Neuraxial Anesthesia), which is not on this map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing 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.

NCT04028284 nacompletednot on this map

Using Augmented Reality to 3D Map Needle Pathways in Real Time to Enhance Neuraxial Anesthesia

TypeinterventionalSponsorSunnybrook Health Sciences CentreRan2019 to 2021Enrolled84ConditionsVirtual Reality, Anesthesia, EpiduralArmsHoloLens-guided epidural, US-guided epidural
3 · Its place in the literature

Who cites it

7 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Review
  6. Extended Reality for Neuraxial Procedures: A Scoping Review.Journal of medical extended reality · 2024
    Article
  7. 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.

Jaya TanwaniDepartment of Anesthesiology and Pain Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada.ORCID https://orcid.org/0000-0001-8986-2552
Fahad AlamDepartment of Anesthesiology and Pain Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada.ORCID https://orcid.org/0000-0001-9300-5713
Clyde MatavaDepartment of Anesthesia, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada.ORCID https://orcid.org/0000-0002-9502-0981
Stephen ChoiDepartment of Anesthesiology and Pain Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada.ORCID https://orcid.org/0000-0003-3662-9073
Paul McHardyDepartment of Anesthesiology and Pain Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada.ORCID https://orcid.org/0000-0001-6061-7502
Oskar SingerDepartment of Anesthesiology and Pain Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada.ORCID https://orcid.org/0000-0003-0621-5478
Geraldine CheongDepartment of Anesthesia, Khoo Teck Puat Hospital, Singapore, Singapore.ORCID https://orcid.org/0000-0001-7037-1657
Julian WiegelmannDepartment of Anesthesiology and Pain Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada.ORCID https://orcid.org/0000-0003-1993-8413

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNeuraxial anesthesia is conventionally performed using a landmark-based technique. Preprocedural ultrasound is often used in challenging clinical scenarios to identify an ideal needle path. The procedure is then carried out by the operator recreating the ultrasound needle path from memory. We suggest that a needle guidance system using the Microsoft HoloLens mixed reality headset, which projects a hologram of the ideal needle path, can assist operators in replicating the correct needle angulation and result in fewer needle passes.

objectiveThe objective of the study was to develop software for the mixed reality HoloLens headset, which could be used to augment the performance of neuraxial anesthesia, and establish its face validity in lumbar spine phantom models.

methodsWe developed an ultrasound transducer marker and software for the HoloLens, which registers the position and angulation of the ultrasound transducer during preprocedural scans. Once an image of a clear path from skin to the intrathecal space is acquired, a hologram of the ideal needle path is projected onto the user's visual field. The ultrasound probe is removed while the hologram remains in the correct spatial position to visualize the needle trajectory during the procedure as if conducting real-time ultrasound. User testing was performed using a lumbar spine phantom.

resultsPreliminary work demonstrates that novice (2 anesthesia residents) and experienced operators (5 attending anesthesiologists) can rapidly learn to use mixed reality holograms to perform neuraxial anesthesia on lumbar spine phantoms.

conclusionsOur study shows promising results for performing neuraxial anesthesia in phantoms using the HoloLens. Although this may have wide-ranging implications for image-guided therapies, further study is required to quantify the accuracy and safety benefit of using holographic guidance.

trial registrationClinicalTrials.gov NCT04028284; https://clinicaltrials.gov/ct2/show/NCT04028284.

Indexed as

augmented realityhologramsHoloLensmixed realityneuraxial anesthesiavirtual reality

Identifiers

PMID35737430
PMCPMC9264121

What OpenQuestion holds

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Registered trials

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.