Morchel Herman, Ogedegbe Chinwe, Chaplin William, Cheney Brianna, Zakharchenko Svetlana, Misch David, Schwartz Matthew, Feldman Joseph, Kaul Sanjeev
Emergency Trauma Center, Hackensack Meridian Health, 30 Prospect Avenue, Hackensack, NJ 07601.
Department of Psychology, St. John's University, 8000 Utopia Parkway, Jamaica, NY 11439.
Mil Med. 2018 Mar 1;183(suppl_1):111-118. doi: 10.1093/milmed/usx167.
To determine if physicians trained in ultrasound interpretation perceive a difference in image quality and usefulness between Extended Focused Assessment with Sonography ultrasound examinations performed at bedside in a hospital vs. by emergency medical technicians minimally trained in medical ultrasound on a moving ambulance and transmitted to the hospital via a novel wireless system. In particular, we sought to demonstrate that useful images could be obtained from patients in less than optimal imaging conditions; that is, while they were in transport.
Emergency medical technicians performed the examinations during transport of blunt trauma patients. Upon patient arrival at the hospital, a bedside Extended Focused Assessment with Sonography examination was performed by a physician. Both examinations were recorded and later reviewed by physicians trained in ultrasound interpretation.
Data were collected on 20 blunt trauma patients over a period of 13 mo. Twenty ultrasound-trained physicians blindly compared transmitted vs. bedside images using 11 Questionnaire for User Interaction Satisfaction scales. Four paired samples t-tests were conducted to assess mean differences between ratings for ambulatory and base images.
Although there is a slight tendency for the average rating across all subjects and raters to be slightly higher in the base than in the ambulatory condition, none of these differences are statistically significant. These results suggest that the quality of the ambulatory images was viewed as essentially as good as the quality of the base images.
确定接受超声解读培训的医生是否能察觉到在医院床边进行的超声扩展聚焦评估检查与由在移动救护车上接受过最少医学超声培训的急救医疗技术人员通过一种新型无线系统传输至医院的检查之间在图像质量和实用性上的差异。特别是，我们试图证明在不太理想的成像条件下，即患者在转运过程中，也能获得有用的图像。
急救医疗技术人员在钝性创伤患者转运过程中进行检查。患者到达医院后，由医生进行床边超声扩展聚焦评估检查。两次检查均进行记录，随后由接受过超声解读培训的医生进行回顾。
在13个月的时间里收集了20例钝性创伤患者的数据。20名接受过超声培训的医生使用11项用户交互满意度调查问卷对传输图像与床边图像进行了盲法比较。进行了四次配对样本t检验，以评估动态图像和基础图像评分之间的平均差异。
尽管所有受试者和评估者的平均评分在基础条件下略高于动态条件下，但这些差异均无统计学意义。这些结果表明，动态图像的质量被认为与基础图像的质量基本相当。
