Wu Teresa S, Dameff Christian J, Tully Jeffrey L
University of Arizona College of Medicine-Phoenix, Phoenix, Arizona; Department of Emergency Medicine, Maricopa Medical Center, Phoenix, Arizona.
University of Arizona College of Medicine-Phoenix, Phoenix, Arizona; Phoenix Children's Hospital, Phoenix, Arizona.
J Emerg Med. 2014 Dec;47(6):668-75. doi: 10.1016/j.jemermed.2014.07.045. Epub 2014 Oct 1.
The use of ultrasound during invasive bedside procedures is quickly becoming the standard of care. Ultrasound machine placement during procedures often requires the practitioner to turn their head during the procedure to view the screen. Such turning has been implicated in unintentional hand movements in novices. Google Glass is a head-mounted computer with a specialized screen capable of projecting images and video into the view of the wearer. Such technology may help decrease unintentional hand movements.
Our aim was to evaluate whether or not medical practitioners at various levels of training could use Google Glass to perform an ultrasound-guided procedure, and to explore potential advantages of this technology.
Forty participants of varying training levels were randomized into two groups. One group used Google Glass to perform an ultrasound-guided central line. The other group used traditional ultrasound during the procedure. Video recordings of eye and hand movements were analyzed.
All participants from both groups were able to complete the procedure without difficulty. Google Glass wearers took longer to perform the procedure at all training levels (medical student year 1 [MS1]: 193 s vs. 77 s, p > 0.5; MS4: 197s vs. 91s, p ≤ 0.05; postgraduate year 1 [PGY1]: 288s vs. 125 s, p > 0.5; PGY3: 151 s vs. 52 s, p ≤ 0.05), and required more needle redirections (MS1: 4.4 vs. 2.0, p > 0.5; MS4: 4.8 vs. 2.8, p > 0.5; PGY1: 4.4 vs. 2.8, p > 0.5; PGY3: 2.0 vs. 1.0, p > 0.5).
In this study, it was possible to perform ultrasound-guided procedures with Google Glass. Google Glass wearers, on average, took longer to gain access, and had more needle redirections, but less head movements were noted.
在侵入性床边操作过程中使用超声正迅速成为护理标准。操作过程中超声设备的放置常常要求从业者在操作时转头去看屏幕。这种转头动作与新手的无意手部动作有关。谷歌眼镜是一种头戴式计算机，配有专门的屏幕，能够将图像和视频投射到佩戴者的视野中。这种技术可能有助于减少无意的手部动作。
我们的目的是评估不同培训水平的医学从业者是否能够使用谷歌眼镜进行超声引导操作，并探索该技术的潜在优势。
40名不同培训水平的参与者被随机分为两组。一组使用谷歌眼镜进行超声引导下的中心静脉置管。另一组在操作过程中使用传统超声。对眼动和手动的视频记录进行分析。
两组的所有参与者都能顺利完成操作。在所有培训水平上，佩戴谷歌眼镜的人完成操作花费的时间更长（医学一年级学生[MS1]：193秒对77秒，p>0.5；医学四年级学生[MS4]：197秒对91秒，p≤0.05；住院医师第一年[PGY1]：288秒对125秒，p>0.5；住院医师第三年[PGY3]：151秒对52秒，p≤0.05），并且需要更多次重新调整进针方向（MS1：4.4次对2.0次，p>0.5；MS4：4.8次对2.8次，p>0.5；PGY1：4.4次对2.8次，p>0.5；PGY3：2.0次对1.0次，p>0.5）。
在本研究中，使用谷歌眼镜进行超声引导操作是可行的。平均而言，佩戴谷歌眼镜的人获得进针通路花费的时间更长，重新调整进针方向的次数更多，但观察到的头部动作更少。
