Fasseaux Antoine, Pès Philippe, Steenebruggen Françoise, Dupriez Florence
Department of Emergency Medicine, CHR Jolimont, 7100, La Louvière, Belgium.
Department of Emergency Medicine, CHU Nantes, Nantes University Hospital, 44000, Nantes, France.
Ultrasound J. 2021 Mar 1;13(1):14. doi: 10.1186/s13089-021-00209-7.
Trauma is a major cause of death among the working population. Many countries have now adopted a structured approach to trauma management in which ultrasound is used as a primary evaluation tool. While its use has direct therapeutic benefits, many artifacts and pitfalls are inherent to the technique. Knowledge of the most frequently encountered pitfalls in practice could thus help reduce the risk of error and lead to more accurate trauma assessments.
This study evaluates a potential pitfall caused by seminal vesicles during focused assessment with sonography for trauma examinations of the male pelvis performed by an emergency physician with experience in point-of-care ultrasound.
We took five static and five dynamic (3-s loops) transverse ultrasound images of the pelvis in five healthy males. The images and videos were then incorporated into an online survey and emailed through the World Interactive Network Focused On Critical UltraSound (WINFOCUS) in France and the Ultrasound and Emergency Medicine (UEM) Organization in Belgium. A questionnaire asked anonymous participants to assess the presence of free fluid in the static and dynamic images and to share information about their training and experience in point-of-care ultrasound. To validate the static and dynamic images, the survey was sent to three external radiologists for independent verification.
A total of 191 individuals responded fully or partially to the survey, 114 of whom completed it. Among the 114 participants who completed the survey, the misinterpretation rate was 0.55 (95CI 0.51-0.60) for all static and dynamic ultrasound transverse pelvic views. The misinterpretation rate was 0.61 (95CI 0.55-0.66) and 0.50 (95CI 0.45-0.55) for static and dynamic ultrasound transverse pelvic views, respectively. The three external radiologists answered the questionnaire correctly without misinterpreting the survey ultrasound views.
Seminal vesicles are a potential pitfall when interpreting transverse ultrasound images of the male pelvis in the context of point-of-care ultrasound.
创伤是劳动人口死亡的主要原因。现在许多国家都采用了结构化的创伤管理方法，其中超声被用作主要评估工具。虽然其使用具有直接的治疗益处，但该技术存在许多伪像和陷阱。了解实践中最常遇到的陷阱有助于降低出错风险，并实现更准确的创伤评估。
本研究评估了在男性骨盆创伤检查的床旁超声重点评估中，精囊导致的一个潜在陷阱。
我们获取了五名健康男性骨盆的五张静态和五段动态（3秒循环）横向超声图像。然后将这些图像和视频纳入在线调查，并通过法国的世界聚焦急诊超声互动网络（WINFOCUS）和比利时的超声与急诊医学（UEM）组织发送电子邮件。一份问卷要求匿名参与者评估静态和动态图像中游离液体的存在情况，并分享他们在床旁超声方面的培训和经验信息。为验证静态和动态图像，该调查被发送给三名外部放射科医生进行独立核实。
共有191人对调查做出了全部或部分回复，其中114人完成了调查。在完成调查的114名参与者中，所有静态和动态超声横向骨盆视图的误判率为0.55（95%置信区间0.51 - 0.60）。静态和动态超声横向骨盆视图的误判率分别为0.61（95%置信区间0.55 - 0.66）和0.50（95%置信区间0.45 - 0.55）。三名外部放射科医生正确回答了问卷，没有误判调查超声视图。
在床旁超声检查中解读男性骨盆横向超声图像时，精囊是一个潜在的陷阱。
