International University of Health and Welfare, Narita, Japan.
University of Tsukuba, Tsukuba, Japan.
BMC Med Educ. 2022 Jul 28;22(1):579. doi: 10.1186/s12909-022-03645-8.
The use of head mounted display (HMD)-based immersive virtual reality (VR) coaching systems (HMD-VRC) is expected to be effective for skill acquisition in radiography. The usefulness of HMD-VRC has been reported in many previous studies. However, previous studies have evaluated the effectiveness of HMD-VRC only through questionnaires. HMD-VRC has difficulties in palpation and patient interaction compared to real-world training. It is expected that these issues will have an impact on proficiency. The purpose of this study is to determine the impact of VR constraints in HMD-VRC, especially palpation and patient interaction, on radiographic skills proficiency in a real-world setting.
First-year students (n = 30) at a training school for radiology technologists in Japan were randomly divided into two groups, one using HMD-VRC (HMD-VRC group) and the other practicing with conventional physical equipment (RP group) and trained for approximately one hour. The teachers then evaluated the students for proficiency using a rubric method.
In this study, it was found that some skills in the HMD-VRC group were equivalent to those of the RP group and some were significantly lower than those of the RP group. There was a significant decrease in proficiency in skills related to palpation and patient interaction.
This study suggests that HMD-VRC can be less effective than real-world training in radiographic techniques, which require palpation and patient interaction. For effective training, it is important to objectively evaluate proficiency in the real world, even for HMD-VRC with new technologies, such as haptic presentation and VR patient interaction.
The study was conducted with the approval of the Ethics Committee of International University of Health and Welfare (Approval No.21-Im-035, Registration date: September 28, 2021).
头戴式显示（HMD）沉浸式虚拟现实（VR）教练系统（HMD-VRC）有望在放射学技能获取中发挥作用。在许多先前的研究中已经报道了 HMD-VRC 的有用性。然而，以前的研究仅通过问卷调查评估了 HMD-VRC 的有效性。与现实世界的培训相比，HMD-VRC 在触诊和患者交互方面存在困难。预计这些问题会对熟练程度产生影响。本研究旨在确定 HMD-VRC 中的 VR 限制，特别是触诊和患者交互，对现实世界中放射技能熟练程度的影响。
日本放射技师培训学校的一年级学生（n=30）被随机分为两组，一组使用 HMD-VRC（HMD-VRC 组），另一组使用传统物理设备（RP 组）进行练习，每组训练时间约为一小时。然后，教师使用评分方法评估学生的熟练程度。
在这项研究中，发现 HMD-VRC 组的一些技能与 RP 组相当，而一些技能明显低于 RP 组。与触诊和患者交互相关的技能熟练程度显著下降。
本研究表明，HMD-VRC 在需要触诊和患者交互的放射技术培训中可能不如现实世界的培训有效。为了进行有效的培训，即使对于具有新的触觉呈现和 VR 患者交互等新技术的 HMD-VRC，也很重要在现实世界中客观地评估熟练程度。
该研究得到了国际健康福利大学伦理委员会的批准（批准号 21-Im-035，注册日期：2021 年 9 月 28 日）。
