Evidence map›Paper›PMID 33720840›Full record

ArticleJMIR medical informatics2021

A Natural Language Processing-Based Virtual Patient Simulator and Intelligent Tutoring System for the Clinical Diagnostic Process: Simulator Development and Case Study.

Raffaello Furlan, Mauro Gatti, Roberto Menè, Dana Shiffer, Chiara Marchiori, Alessandro Giaj Levra, Vincenzo Saturnino, Enrico Brunetta, Franca Dipaola

Open access · goldAbstract read
In one paragraph

Article in JMIR medical informatics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
6.5field-weighted citation impact, top 3% 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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 58 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. A virtual patient authoring tool for transcatheter aortic valve replacement.International journal of computer assisted radiology and surgery · 2025
    Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. IvCDS: An End-to-End Driver Simulator for Personal In-Vehicle Conversational Assistant.International journal of environmental research and public health · 2022
    Article
  20. 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

9 authors at 2 institutions in 2 countries.

Raffaello Furlan *Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy.ORCID https://orcid.org/0000-0001-5209-6786
Mauro Gatti *Active Intelligence Center, IBM, Bologna, Italy.ORCID https://orcid.org/0000-0002-4312-8835
Roberto MenèDepartment of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy.ORCID https://orcid.org/0000-0003-1671-1977
Dana ShifferDepartment of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy.ORCID https://orcid.org/0000-0002-8663-6899
Chiara MarchioriIBM Research, Zurich, Switzerland.ORCID https://orcid.org/0000-0001-8983-2863
Alessandro Giaj LevraDepartment of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy.ORCID https://orcid.org/0000-0001-7779-5276
Vincenzo SaturninoActive Intelligence Center, IBM, Bologna, Italy.ORCID https://orcid.org/0000-0002-4509-5651
Enrico BrunettaDepartment of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy.ORCID https://orcid.org/0000-0002-0676-1228
Franca DipaolaDepartment of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy.ORCID https://orcid.org/0000-0002-1557-8935
Humanitas University · ITIBM Research - Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundShortage of human resources, increasing educational costs, and the need to keep social distances in response to the COVID-19 worldwide outbreak have prompted the necessity of clinical training methods designed for distance learning. Virtual patient simulators (VPSs) may partially meet these needs. Natural language processing (NLP) and intelligent tutoring systems (ITSs) may further enhance the educational impact of these simulators.

objectiveThe goal of this study was to develop a VPS for clinical diagnostic reasoning that integrates interaction in natural language and an ITS. We also aimed to provide preliminary results of a short-term learning test administered on undergraduate students after use of the simulator.

methodsWe trained a Siamese long short-term memory network for anamnesis and NLP algorithms combined with Systematized Nomenclature of Medicine (SNOMED) ontology for diagnostic hypothesis generation. The ITS was structured on the concepts of knowledge, assessment, and learner models. To assess short-term learning changes, 15 undergraduate medical students underwent two identical tests, composed of multiple-choice questions, before and after performing a simulation by the virtual simulator. The test was made up of 22 questions; 11 of these were core questions that were specifically designed to evaluate clinical knowledge related to the simulated case.

resultsWe developed a VPS called Hepius that allows students to gather clinical information from the patient's medical history, physical exam, and investigations and allows them to formulate a differential diagnosis by using natural language. Hepius is also an ITS that provides real-time step-by-step feedback to the student and suggests specific topics the student has to review to fill in potential knowledge gaps. Results from the short-term learning test showed an increase in both mean test score (P<.001) and mean score for core questions (P<.001) when comparing presimulation and postsimulation performance.

conclusionsBy combining ITS and NLP technologies, Hepius may provide medical undergraduate students with a learning tool for training them in diagnostic reasoning. This may be particularly useful in a setting where students have restricted access to clinical wards, as is happening during the COVID-19 pandemic in many countries worldwide.

Indexed as

artificial intelligenceclinical diagnostic reasoningCOVID-19intelligent tutoring systemnatural language processingvirtual patient simulator

Identifiers

PMID33720840
PMCPMC8041050
OpenAlexW3139009262

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.