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首页> 外文期刊>BioMedical Engineering OnLine >Interactive simulator for e-Learning environments: a teaching software for health care professionals
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Interactive simulator for e-Learning environments: a teaching software for health care professionals

机译：电子学习环境的交互式模拟器：面向医疗保健专业人员的教学软件

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There is an established tradition of cardiovascular simulation tools, but the application of this kind of technology in the e-Learning arena is a novel approach. This paper presents an e-Learning environment aimed at teaching the interaction of cardiovascular and lung systems to health-care professionals. Heart-lung interaction must be analyzed while assisting patients with severe respiratory problems or with heart failure in intensive care unit. Such patients can be assisted by mechanical ventilatory assistance or by thoracic artificial lung. “In silico” cardiovascular simulator was experimented during a training course given to graduate students of the School of Specialization in Cardiology at ‘Sapienza’ University in Rome. The training course employed CARDIOSIM?: a numerical simulator of the cardiovascular system. Such simulator is able to reproduce pathophysiological conditions of patients affected by cardiovascular and/or lung disease. In order to study the interactions among the cardiovascular system, the natural lung and the thoracic artificial lung (TAL), the numerical model of this device has been implemented. After having reproduced a patient’s pathological condition, TAL model was applied in parallel and hybrid model during the training course. Results obtained during the training course show that TAL parallel assistance reduces right ventricular end systolic (diastolic) volume, but increases left ventricular end systolic (diastolic) volume. The percentage changes induced by hybrid TAL assistance on haemodynamic variables are lower than those produced by parallel assistance. Only in the case of the mean pulmonary arterial pressure, there is a percentage reduction which, in case of hybrid assistance, is greater (about 40%) than in case of parallel assistance (20-30%). At the end of the course, a short questionnaire was submitted to students in order to assess the quality of the course. The feedback obtained was positive, showing good results with respect to the degree of students’ learning and the ease of use of the software simulator.
机译：心血管模拟工具已经建立了一个传统，但是在电子学习领域中应用这种技术是一种新颖的方法。本文介绍了一个在线学习环境，旨在向医疗保健专业人员教授心血管和肺系统的相互作用。在协助重症监护病房出现严重呼吸问题或心力衰竭的患者时，必须分析心肺相互作用。可以通过机械通气辅助或胸腔人工肺辅助此类患者。在为罗马“萨皮恩扎”大学心脏病学专业学院的研究生提供的培训课程中对“ in silico”心血管模拟器进行了实验。培训课程使用了CARDIOSIM ？：心血管系统的数字模拟器。这种模拟器能够再现受心血管和/或肺部疾病影响的患者的病理生理状况。为了研究心血管系统，天然肺和胸腔人工肺（TAL）之间的相互作用，已经实现了该装置的数值模型。在复制了患者的病理状况后，在训练过程中将TAL模型应用于并行和混合模型。在培训过程中获得的结果表明，TAL平行辅助可减少右心室舒张末期容积（舒张期），但增加左心室舒张末期容积（舒张期）。混合TAL辅助在血流动力学变量上引起的百分比变化低于并行辅助产生的百分比变化。仅在平均肺动脉压的情况下，百分比降低才是混合辅助的情况下（约40％）比平行辅助的情况下（20-30％）更大。在课程结束时，向学生提交了一份简短的问卷，以评估课程的质量。获得的反馈是积极的，在学生的学习程度和软件模拟器的易用性方面均显示出良好的结果。

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