Using Real-Time Lung Visuals to Reduce Mental Strain and Improve Diagnosis Speed

Официальное название

Effect of Real-Time Respiratory Mechanics Visualization ("Digital Twin") on Clinician Cognitive Workload and Diagnostic Latency: A Randomized Crossover Simulation Trial

Обзор

The goal of this clinical simulation study is to learn if a "Digital Twin" graphical lung display reduce the mental workload of clinicians. The study also evaluates if this helps physicians diagnose and manage ventilator-related crises more effectively than standard ventilator screens. The main questions it aims to answer are: Does the Digital Twin display lower the cognitive stress (mental workload) experienced by clinicians during a crisis? Does the Digital Twin display reduce the time it takes for clinicians to identify specific respiratory complications? Does the use of real-time physiological visualization improve the accuracy of clinical decision-making? Researchers will compare the performance of clinicians using a standard ventilator display (the "Black Box" condition) to their performance when provided with an additional synchronized 3D lung and advanced waveform display (the "Digital Twin" condition). Participants will: Complete four randomized mechanical ventilation crisis scenarios using a high-fidelity lung simulator (ASL 5000). Manage scenarios involving high airway resistance, low lung compliance, auto-PEEP, and patient-ventilator asynchrony. Undergo a 14-day "washout" period between sessions to ensure no memory bias between the control and intervention groups. Complete a NASA-TLX survey after each scenario to measure their perceived mental, physical, and temporal demand.

Вмешательства

• Устройство Real-time Graphical Lung Function Visualization (Digital Twin)
  This intervention consists of a high-fidelity graphical display that translates raw simulator data into synchronized 3D animations and advanced physiological waveforms. It provides continuous visualization of, Muscle Pressure (Pmus), and the Equation of Motion components (Resistive vs. Elastic pressure) to assist in clinical diagnosis.
• Другое Standard Ventilator Waveform Monitoring
  This intervention represents the current standard of care in mechanical ventilation monitoring. Clinicians are limited to the pressure-time and flow-time waveforms provided by the mechanical ventilator interface. Diagnostic assessments of lung mechanics (Resistance and Compliance) must be performed using manual ventilator maneuvers, such as inspiratory and expiratory holds.

Первичные конечные точки

• Perceived Mental Workload (NASA Task Load Index) [Срок оценки: Within 5 minutes following the completion of each 10-minute simulation scenario.]

Вторичные конечные точки (2)

• Time to Correct Diagnosis (Diagnostic Latency) [Срок оценки: From the onset of the simulated respiratory crisis until the participant verbalizes the correct diagnosis, assessed during each 10-minute simulation scenario.]
• Diagnostic Accuracy Rate [Срок оценки: Assessed at the conclusion of each 10-minute simulation scenario.]

Критерии участия

Критерии включения

• Licensed physicians currently practicing in intensive care units (ICU), neuro-intensive care units (NICU), or respiratory departments.
• For the Junior Stratum: Physicians currently in a standardized residency training program or in their first two years of a sub-specialty fellowship. For the Senior Stratum: Senior attending physicians or senior fellows with more than 5 years of experience in intensive care medicine.
• Basic proficiency in operating the mechanical ventilators used in the study (e.g., Hamilton, Dräger, or Puritan Bennett).
• Willingness to participate in two simulation sessions separated by a 14-day interval.

Критерии исключения

• Prior formal training or significant experience using the ASL 5000 / RespiSim "Digital Twin" or Aurora interface.
• Physical limitations that prevent the operation of a mechanical ventilator or the viewing of a digital monitor.
• Refusal to provide informed consent for video recording of the simulation session for data adjudication.

Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.

Здоровые добровольцы: Да

Дизайн исследования

Распределение

Рандомизированное

Модель

Перекрёстный дизайн

Маскирование

Простое слепое

Основная цель

Организация здравоохранения

Центры проведения

Китай · 1 центр

• Second Affiliated Hospital of Zhejiang University School of Medicine — Ханчжоу

Идентификаторы

NCT: NCT07511712 · 20260530

Первоисточники (государственные реестры)

• ClinicalTrials.gov (NIH, США)

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