Evidence map›Paper›PMID 31679063›Full record

ArticleWorld journal of urology2020

Mechanical and functional validation of a perfused, robot-assisted partial nephrectomy simulation platform using a combination of 3D printing and hydrogel casting.

Rachel Melnyk, Bahie Ezzat, Elizabeth Belfast, Patrick Saba, Shamroz Farooq, Timothy Campbell, Stephen McAleavey, Mark Buckley, Ahmed Ghazi

Erratum issuedOpen access · greenAbstract readTechnical ReportValidation Study
In one paragraph

Article in World journal of urology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
8.2field-weighted citation impact, top 2% of its field
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

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 63 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Hemorrhaging laparoscopic partial nephrectomy - feasibility of a novel simulation model.Canadian Urological Association journal = Journal de l'Association des urologues du Canada · 2022
    Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. 3D Printing of Physical Organ Models: Recent Developments and Challenges.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2021
    Review
  16. Innovations in Urologic Surgical Training.Current urology reports · 2021
    Review
  17. Article
  18. Article
  19. Robotic surgery for colorectal cancer.Annals of gastroenterological surgery · 2020
    Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 1 country.

Rachel MelnykDepartment of Urology, Simulation Innovation Laboratory, Univeristy of Rochester Medical Center, 601 Elmwood Ave, Rochester, NY, 14642, USA.
Bahie EzzatDepartment of Biomedical Engineering, Hajim School of Engineering, University of Rochester, 500 Joseph C. Wilson Blvd, Rochester, NY, 14611, USA.
Elizabeth BelfastDepartment of Urology, Simulation Innovation Laboratory, Univeristy of Rochester Medical Center, 601 Elmwood Ave, Rochester, NY, 14642, USA.
Patrick SabaDepartment of Urology, Simulation Innovation Laboratory, Univeristy of Rochester Medical Center, 601 Elmwood Ave, Rochester, NY, 14642, USA.
Shamroz FarooqSchool of Medicine and Dentistry, University of Rochester Medical Center, 601 Elmwood Ave, Rochester, NY, 14642, USA.
Timothy CampbellSchool of Medicine and Dentistry, University of Rochester Medical Center, 601 Elmwood Ave, Rochester, NY, 14642, USA.
Stephen McAleaveyDepartment of Biomedical Engineering, Hajim School of Engineering, University of Rochester, 500 Joseph C. Wilson Blvd, Rochester, NY, 14611, USA.
Mark BuckleyDepartment of Biomedical Engineering, Hajim School of Engineering, University of Rochester, 500 Joseph C. Wilson Blvd, Rochester, NY, 14611, USA.
Ahmed GhaziDepartment of Urology, Simulation Innovation Laboratory, Univeristy of Rochester Medical Center, 601 Elmwood Ave, Rochester, NY, 14642, USA. ahmed_ghazi@URMC.rochester.edu.
University of Rochester Medical Center · USUniversity of Rochester · US

Funding

Development and Validation of a Physical Anatomic Model for Surgical TrainingUsing 3D Printing TechnologyR41EB026358 · NIBIB · SIMULATED INANIMATE MODELS, LLC · PI GHAZI, AHMED, STONE, JONATHAN JAY · 2018 to 2019
$155k
NIBIB NIH HHS R41 EB026358
6 · The paper itself

Abstract

INTRODUCTION AND

objectivesThere is a scarcity of high-fidelity, life-like, standardized and anatomically correct polymer-based kidney models for robot-assisted partial nephrectomy (RAPN) simulation training. The purpose of this technical report is to present mechanical and functional testing data as evidence for utilizing a perfused hydrogel kidney model created utilizing 3D printed injection casts for RAPN simulation and training.

methodsAnatomically correct, tumor-laden kidney models were created from 3D-printed casts designed from a patient's CT scan and injected with poly-vinyl alcohol (PVA). A variety of testing methods quantified Young's modulus in addition to comparing the functional effects of bleeding and suturing among fresh porcine kidneys and various formulations of PVA kidneys.

results7% PVA at three freeze-thaw cycles (7%-3FT) was found to be the formula that best replicates the mechanical properties of fresh porcine kidney tissue, where mean(± SD) values of Young's modulus of porcine tissue vs 7%-3FT samples were calculated to be 85.97(± 35) kPa vs 80.97(± 9.05) kPa, 15.7(± 1.6) kPa vs 74.56(± 10) kPa and 87.46(± 2.97) kPa vs 83.4(± 0.7) kPa for unconfined compression, indentation and elastography testing, respectively. No significant difference was seen in mean suture tension during renorrhaphy necessary to achieve observable hemostasis and capsular violation during a simulated perfusion at 120 mmHg.

conclusionsThis is the first study to utilize extensive material testing analyses to determine the mechanical and functional properties of a perfused, inanimate simulation platform for RAPN, fabricated using a combination of image segmentation, 3D printing and PVA casting.

Indexed as

HydrogelsKidneyModels, AnatomicPrinting, Three-DimensionalRobotic Surgical ProceduresAnimalsNephrectomyPerfusionSwineHydrogels3D printingHigh fidelityInanimate modelMechanical testingPartial nephrectomyPerfused kidney modelSimulation

Identifiers

PMID31679063
PMCPMC7730938
OpenAlexW2989205596

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

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.