| Home | E-Submission | Sitemap | Contact Us |  
Clin Exp Emerg Med > Volume 8(1); 2021 > Article
Rudnin, Greenstein, and Husain: Free open access medical education for point of care ultrasound: content discovery and resource evaluation


Free open access medical education (FOAM) harnesses the power of various digital communication platforms such as websites, blogs, tweets, podcasts, videos, and social media applications. This online community contributes to sharing ideas and “accelerates the translation of research into clinical practice.” [1] In this paper, we will explore the use of FOAM to learn and teach point-of-care ultrasound (POCUS) as images and videos of ultrasonography are easily posted and shared online with clinical vignettes and procedure descriptions.


POCUS FOAM content has grown exponentially, providing clinicians an opportunity to expand their knowledge and expertise. Many FOAM websites highlight content within emergency medicine (EM) and its various subspecialties. Recently, articles have been published on the critical appraisal of FOAM [2] and FOAM mobile apps [3]. However, there is no literature evaluating POCUS FOAM resources, which prompted us to create this review.
Searching for content specific FOAM education may be difficult given the extensive content available. Websites specific for searching FOAM content, such as ‘FOAM Search’ (https://www.googlefoam.com) help with finding focused FOAM (F_FOAM) [4]. FOAM Search allows you to either broadly search for FOAM material or to choose from their subcategories of F_FOAM. Many popular FOAM websites have subcategories that provide archives to ultrasound videos such as ‘Life in The Fast Lane’ while others provide solely F_FOAM video and image archives such as ‘The Pocus Atlas.’ [4] A report of our search results is presented in Table 1.
Some F_FOAM websites such as ‘5 Minute Sono’ provide podcasts in addition to their archive-based websites. Podcasts are popular in the FOAM world since they provide a simplified process of downloading and listening to lectures [5]. As such, learners can access the podcast content anytime and anywhere.
Mobile apps are easily accessible and have become quite appealing to clinicians. Apps like ‘Pocket Emergency Ultrasound’ provide sample images of each type of POCUS exam with reference ranges for each category to quickly remind the user of normal/abnormal values. ‘SonoSupport’ is another great app for ultrasound guided procedures. The SonoSupport app provides you the pertinent information to perform a variety of POCUS applications with background information and tutorials on best practices in POCUS such as probe selection, obtaining views, images of normal views and procedural pearls.
Social media is also a very engaging platform to find POCUS F_FOAM consumers. Instagram is an easy-to-use app to post images and videos and has capabilities to post multiple images and videos within one post. Also, posts are easily searchable with hashtags such as #FOAMed #POCUS, #FOAMus, and others. Instagram allows you to “follow” the hashtags so that you can always be updated on the newest posts. Twitter has long been a championed media platform to distribute FOAM, and there are numerous POCUS FOAM based twitter accounts. Many of the above mentioned podcasts, apps, and websites use Twitter accounts to promote their content. There are several popular emergency ultrasound twitter accounts such as @POCUS_Society, @Pocusfoamed, @ACEP_EUS, and @Ultrasoundpod. In addition, many EM ultrasound divisions and fellowships use twitter as a forum to discuss interesting cases, novel techniques, and teaching pearls.


Standardized assessment of FOAM content quality is limited to a few resources which have been described in the literature [2,3]. All the apps we evaluated were available both on the Apple and the Android store. We explored various F_FOAM [4] websites, podcasts and apps and evaluated those that discussed EM POCUS. FOAM has the capability to enhance medical education by providing up to date concepts through influential resources [6] to each individual’s personal preference of media. Having a variety of F_FOAM websites, podcasts, apps, and social media sites provides clinicians the opportunity to learn and discover topics of interest to them. More importantly, users are able to review the information asynchronously in their optimal learning environment. Overall, this improves knowledge translation and provides a medium which will also improve knowledge retention.


No potential conflict of interest relevant to this article was reported.


1. Burkholder TW, Bellows JW, King RA. Free open access medical education (FOAM) in emergency medicine: the global distribution of users in 2016. West J Emerg Med 2018; 19:600-5.
crossref pmid pmc
2. Grock A, Paolo W. Free open access medical education: a critical appraisal of techniques for quality assessment and content discovery. Clin Exp Emerg Med 2016; 3:183-5.
crossref pmid pmc
3. Zhi A, Husain A. Free open access medical education applications: a critical appraisal of techniques for quality assessment and content discovery. Clin Exp Emerg Med 2019; 6:93-5.
crossref pmid pmc
4. Beck-Esmay J. Focused FOAMed: the learners lens [Internet]. [place unknown]: REBEL EM; 2019. [cited 2019 Jul 30]. Available from: https://rebelem.com/focused-foamed-the-learners-lens/.

5. Thoma B, Joshi N, Trueger NS, Chan TM, Lin M. Five strategies to effectively use online resources in emergency medicine. Ann Emerg Med 2014; 64:392-5.
crossref pmid
6. Otterness K. Incorporating FOAM into medical student and resident education. Clin Exp Emerg Med 2017; 4:119-20.
crossref pmid pmc

Table 1.
Select free open access medical education websites, podcasts, and mobile apps that are dedicated to EM POCUS
Name Website, podcast or app Description URL
5 Minute Sono Website Five-minute basic how-to-do specific US exams https://www.coreultrasound.com/5ms
The Pocus Atlas Website Image based database of POCUS findings http://www.thepocusatlas.com
SonoWorld Website Case based ultrasound findings and links POCUS news and lectures. https://sonoworld.com/
Ultrasound of The Week Website Case based ultrasounds with information about the pathology https://www.coreultrasound.com/category/ultrasound-of-the-week/
5 Minute Sono Podcast Five minutes or less of POCUS especially for critically ill patients that is concise and brief allowing users to review techniques even if “on shift’ https://podcasts.apple.com/us/podcast/5-minute-sono/id1063071579
Ultrasound G.E.L. Podcast Podcast GEL which stands for gathering evidence from literature, reviews and discusses recent POCUS literature http://www.ultrasoundgel.org
Emergency Ultrasound Podcast Lectures on bedside ultrasound https://podcasts.apple.com/us/podcast/emergency-ultrasound/id429668403
Resus Ultrasound App Reference application on how to use POCUS with images demonstrating normal/abnormal and “how to images” (free) https://apps.apple.com/us/app/resus-ultrasound/id1033017112
Pocket Emergency Ultrasound App Atlas of normal valves when using POCUS (free) https://apps.apple.com/us/app/pocket-emergency-ultrasound/id921385842
SonoSupport App Step-By-Step on how to perform POCUS exams and procedures (free to $9.99) https://apps.apple.com/us/app/sonosupport-clinical-emergency-medicine-critical-care/id638608139
Ultrasoundpedia App Brief descriptions of each exam, the role of US as it pertains to each exam, limitations and step-by-step scanning techniques ($1.99) https://apps.apple.com/au/app/ultrasoundpaedia/id581876379?ign-mpt = uo%3D4

EM, emergency medicine; POCUS, point of care ultrasound.

Editorial Office
The Korean Society of Emergency Medicine
101-3104, Brownstone Seoul, 464 Cheongpa-ro, Jung-gu, Seoul 04510, Korea
TEL: +82-70-4206-7190   FAX: +82-2-3676-1339   E-mail: office@ceemjournal.org
About |  Browse Articles |  Current Issue |  For Authors and Reviewers
Copyright © by The Korean Society of Emergency Medicine.                 Developed in M2PI