Are Live Ultrasound Models Replaceable? Traditional versus Simulated Education Module for FAST Exam

Influencing Physical Therapist's Self-efficacy for Musculoskeletal Ultrasound Through Blended Learning: A Mixed Methods Study

BACKGROUND AND PURPOSE

With the growing interest for physical therapists to incorporate musculoskeletal (MSK) ultrasound comes a need to understand how to organize training to promote the transfer of training to clinical practice. A common training strategy blends asynchronous learning through online modules and virtual simulations with synchronous practice on live simulated participants. However, few physical therapists who attend MSK ultrasound continuing education courses integrate ultrasound into clinical practice. Self-efficacy is a significant predictor of training transfer effectiveness. This study describes to what degree and how a blended learning strategy influenced participants' self-efficacy for MSK ultrasound and transfer of training to clinical practice.

SUBJECTS

Twenty-one outpatient physical therapists with no previous MSK ultrasound training.

METHODS

Twenty-one participants assessed their self-efficacy using a 26-item self-efficacy questionnaire at 3 intervals: before asynchronous, before synchronous training, and before returning to clinical practice. Participants were interviewed within 1 week of training using a semi-structured interview guide. Quantitative analysis included descriptive statistics and repeated-measures ANOVA. Thematic analysis was used to examine participants' experiences, and "following the thread" was used to integrate findings.

RESULTS

Self-efficacy questionnaire mean scores increased significantly across the 3- time points ( F [2, 40] = 172.7, P < .001, η 2 = 0.896). Thematic analysis indicated that asynchronous activities scaffolded participants' knowledge, enhanced their self-efficacy, and prepared them for synchronous learning; however, it did not replicate the challenges of MSK ultrasound. Synchronous activities further improved self-efficacy and helped participants better calibrate their self-judgments of their abilities and readiness to integrate MSK ultrasound training into clinical practice. Despite individual-level improvements in self-efficacy, interviewees recognized their limitations and a need for longitudinal training in a clinical environment.

DISCUSSION AND CONCLUSION

A blended learning approach positively affects participants' self-efficacy for MSK ultrasound; however, future training designs should provide learners with additional support during the transition phase.

Development and Implementation of a Basic Veterinary Ultrasound Curriculum

Diagnostic ultrasound is an important imaging modality in veterinary medicine. Surveys of veterinarians suggest that ultrasound is a desired clinical competence and that new graduates are expected to practice basic ultrasound skills. This report describes the development and implementation of a basic ultrasound training program in the core curriculum at Iowa State University College of Veterinary Medicine (ISU-CVM). A multidisciplinary team of ISU-CVM faculty created and delivered a basic ultrasound training program consisting of two lectures and two hands-on laboratories incorporated into a second-year core course, utilizing ballistic gel and silicone phantoms as well as live-dog scanning. The focus of training was on basic image acquisition, image optimization, and regional sonographic anatomy of the canine abdomen. Students were surveyed at 6-month intervals during program implementation. Survey data from graduating students, alumni, and employers were also analyzed. The program was successfully implemented and was well-received by all key stakeholders. Alumni and employer surveys reinforced the importance of basic ultrasound skills as a competency for new graduates. Student survey data revealed that satisfaction with ultrasound training increased after implementation of the program, as did students' perception of their skill level in individual ultrasound competencies. Student surveys also identified ways to enrich the program by providing additional opportunities for ultrasound practice in subsequent laboratory courses and clinical rotations. This report summarizes lessons learned during development of basic ultrasound training in the core curriculum at ISU-CVM and can serve as a reference for other institutions considering similar programs.

Remote Instruction in Focused Assessment With Sonography in Trauma (FAST) Exams for Surgery Residents: A Pilot Study

BACKGROUND

The Focused Assessment with Sonography in Trauma (FAST) exam is an important component to the evaluation of trauma patients. With advances in technology and meeting limitations due to COVID-19, remote instruction and learning have gained popularity. We sought to determine whether remote instruction of FAST exams was feasible as sustainable surgical education and a possible alternative to traditional in-person teaching.

METHODS

General surgery residents completed a baseline survey and skills assessment on FAST exams and were then randomized to remote or in-person instruction. The remote group participated in an instructional session with a content expert through video conference and then practiced on a simulated mannequin while the expert remotely provided feedback. The in-person group received the experience with the content expert in the room. Both groups completed a post-course survey immediately after the session and a follow-up survey and objective assessment at six-months. Results were compared with two-way analysis of variance (ANOVA).

RESULTS

14 residents underwent the curriculum, seven in each group. There was a significant increase in self-reported confidence when comparing pre- and immediate post-course results for both the remote and in-person groups. At six months, confidence scores remained elevated and skill assessment scores improved, although the latter did not reach significance. There was no significant difference in post-course results between the groups.

CONCLUSIONS

Remote instruction of FAST exams was feasible. Pilot data demonstrated an increase in confidence and suggest outcomes that are similar to in-person instruction, which has positive implications for future remote educational and potentially clinical initiatives.

Principles for teaching sonography - current status

Since many young medical residents require sonographic skills early on during training, increased attention has been paid to including sonography classes in undergraduate medical education, among both professional societies and medical educators responsible for medical licensing exams. Medical schools worldwide have developed and implemented a variety of ultrasound teaching formats.This article addresses evidence-based solutions to crucial challenges in planning and implementing undergraduate sonography education. In order to achieve a sustainable increase in practical sonographic competence, we suggest small-group classes with sufficient individual hands-on scanning time for each student. We recommend concentrating on a circumscribed topic and teaching it thoroughly and practically rather than superficially outlining a broad subject area. Provided that peer teachers undergo adequate training, student peer teachers are not inferior to physicians as teachers, as far as student satisfaction, theoretical knowledge and practical skills acquisition are concerned. The assessment of acquired practical skills should consist of practical examinations, such as an objective structured clinical examination (OSCE) or a direct observation of procedural skills (DOPS). In contrast to using healthy volunteers as training models, simulation trainers allow the demonstration of pathological findings in authentic sonographic images, with the disadvantages of unrealistically easy image acquisition, as well as the lack of interaction with the patient.

The Effectiveness of Student-Led Musculoskeletal and Vascular Ultrasound Workshops at a Single Institution: A Retrospective Survey Analysis

Introduction Point-of-care ultrasound (POCUS) is a rapidly evolving field of diagnostic medicine as its low cost, portability, and versatility have made handheld ultrasound (US) probes an invaluable tool for many modern physicians. Despite US's benefits as a bedside evaluative tool, many medical schools have not integrated POCUS into their pre-clerkship medical education due to a lack of equipment and faculty. The first objective of our study was to determine whether student tutors (STs) would be effective resources to teach musculoskeletal (MSK) and vascular US to preclinical medical students. The second objective of our study was to determine whether students who previously attended ST-run MSK US workshops perform better in vascular US than those who did not. Methods Six POCUS workshops were led by STs after approval from experienced US faculty. These included US workshops on gastrointestinal structures, forearm structures, joint structures, basic echocardiography, and US-guided IV access. We collected data from two of our six workshops. We developed surveys to gauge the confidence and ability of students to perform US after an MSK workshop and US-guided IV access workshop led by STs. We also measured students' US abilities and collected student feedback after our US-guided IV access workshop. We evaluated students' US competency in US-guided IV access via their ability to correctly position the US probe, angle the needle of insertion, move the probe with the needle, and access the vein based on the accuracy of the movements. We divided student results into two groups: students who previously attended the MSK workshop before attending the US-guided IV access workshop and students who did not attend the MSK workshop before attending the US-guided IV access workshop. We used averages, frequencies, and two-tailed t-tests to analyze the survey responses and US-guided IV access skill assessments. Results Fifty percent of first- and second-year surveyed students "agreed," and 32.4% "strongly agreed" that they felt confident using US after an ST-run MSK workshop. About 29.4% of surveyed students "agreed" and 41.2% "strongly agreed" that they felt comfortable explaining basic US concepts, such as proper probe positioning and echogenicity. The group of students who attended the MSK workshop prior to the peripheral IV workshop scored similarly to the students who did not attend the MSK workshop (14.33±1.03 versus 14.20±0.84 points). Both groups of students had an average of over 94% accuracy in technique, positioning, angling, moving the US probe, and achieving US-guided venous access after being taught by STs. Qualitative surveying noted positive student feedback, such as "Teacher was great at guiding us through the procedure." Survey responses also included suggestions on adding and diversifying equipment, such as "[It would be useful to have a] different type of needle to see the difference on ultrasound." Conclusion Based on the high percentages of accuracy and confidence, we found that STs were effective resources to teach MSK and vascular POCUS and that students who attended previous MSK ST-run US workshops had stronger vascular US ability over time compared to those who did not. Our data support the use of STs as US educational resources, especially in institutions without an existing pre-clerkship US curriculum and limited US resources.

Concise, Practical Review on Transthoracic Lung Ultrasound in Prehospital Diagnosis of Dyspnea in Adults

Ultrasonography is a relatively young but widely recognized method of imaging parenchymal organs, including the lungs. Our concise, practical review on transthoracic lung ultrasound (LUS) in the prehospital diagnosis of dyspnea in adults attempts to summarize current knowledge in the field. Furthermore, we discussed POCUS protocols in the analyzed context, discussing their usefulness. We concluded that bedside ultrasonography, or point of care (POCUS), is developing rapidly; however, the knowledge about the use of LUS in a pre-hospital setting is scarce, highlighting the need for further research in this field. Additionally, despite the possibility of using various ultrasound protocols in diagnosing a patient with dyspnea, there is no comprehensive and, at the same time, highly sensitive and specific protocol covering a satisfactory saccade of differential diagnosis of this symptom. It seems reasonable to conduct further targeted research to create such a dedicated solution.

Immersive Virtual Reality in Basic Point-of-Care Ultrasound Training: A Randomized Controlled Trial

This study was aimed at comparing the learning efficacy of a traditional instructor-led lesson with that of a completely virtual, self-directed lesson in immersive virtual reality (IVR) in teaching basic point-of-care ultrasound (PoCUS) skills. We conducted a blinded, non-inferiority, parallel-group, randomized controlled trial in which final-year medical students were randomized to an instructor-led (n = 53) or IVR (n = 51) lesson. Participants' learning efficacy was evaluated by blinded assessors, who rated each participant's performance using the Objective Structured Assessment of Ultrasound Skills (OSAUS) assessment tool.The mean total scores for participants were 11.0 points (95% confidence interval: 9.8-12.2) for the instructor-led lesson and 10.3 points (95% confidence interval: 9.0-11.5) for the IVR lesson. No significant differences were observed between the groups with respect to total score (p = 0.36) or subgroup objectives of the OSAUS score (p = 0.34 for familiarity, p = 0.45 for image optimization, p = 0.96 for systematic approach and p = 0.07 for interpretation). Maintenance costs for both courses were estimated at 400 euros each. Startup costs for the instructor-led course were estimated 16 times higher than those for the IVR course. The learning efficacy of an instructor-led lesson on basic US did not differ significantly from that of a self-directed lesson in IVR, as assessed using the OSAUS. The results suggest that IVR could be an equivalent alternative to instructor-led lessons in future basic US courses, but further research is warranted to clarify the role of IVR in PoCUS courses.

The ultrasound use of simulators, current view, and perspectives: Requirements and technical aspects (WFUMB state of the art paper)

Simulation has been shown to improve clinical learning outcomes, speed up the learning process and improve learner confidence, whilst initially taking pressure off busy clinical lists. The World Federation for Ultrasound in Medicine and Biology (WFUMB) state of the art paper on the use of simulators in ultrasound education introduces ultrasound simulation, its advantages and challenges. It describes different simulator types, including low and high-fidelity simulators, the requirements and technical aspects of simulators, followed by the clinical applications of ultrasound simulation. The paper discusses the role of ultrasound simulation in ultrasound clinical training, referencing established literature. Requirements for successful ultrasound simulation acceptance into educational structures are explored. Despite being in its infancy, ultrasound simulation already offers a wide range of training opportunities and likely holds the key to a broader point of care ultrasound education for medical students, practicing doctors, and other health care professionals. Despite the drawbacks of simulation, there are also many advantages, which are expanding rapidly as the technology evolves.

Evaluation of a point-of-care ultrasound curriculum and ocular phantom in residency training

Specialized training in ocular ultrasound is not a focus for most emergency medicine residencies, despite the fact that it allows physicians to quickly and accurately identify ocular pathology and prioritize emergency ophthalmological consultations. Therefore, we tested the value of utilizing normal and pathologic ocular ultrasound phantoms as a training tool for residents. Twenty emergency medicine residents were given a pre-test including written and practical skills diagnosis of ocular phantom pathologies, a short video on common ocular pathologies, practice time with the phantoms and a post-test including written and scanning components. Residents were then asked to complete an overall evaluation of the learning activity. After didactic and hands-on training with phantoms, residents demonstrated a significant increase in knowledge, skills and preparedness for diagnosing real patients with ocular pathologies. Overall, the phantoms allowed residents an unrestricted opportunity to practice and refine their technique. This study provided a framework for teaching emergency medicine residents the basics of ocular US through a brief didactic and practical intervention using novel ocular pathology US phantoms. Our curriculum resulted in both objective and subjective improvement in residents' performance and understanding of ocular US.

Cost-Effective Training Models in Point-of-Care Ultrasound for Medical Students in Emergency Medicine: An Evaluation of Current Resources

Background

Ultrasound is becoming more widely utilized in clinical practice; however, its effectiveness is limited by the operator’s skills. Simulation models are attractive options for developing skills because they allow inexperienced users to practice without the risk of endangering patients.

Objective

The purpose of this study was to identify commercially available and homemade ultrasound models to describe them in terms of materials, cost, and whether they are high- or low-fidelity for medical student education.

Methods

This is an investigational study on cost-effective ultrasound training methods for medical students. Our study was performed using search engines in Google, Google Scholar, and PubMed to search for models for the following five modalities: foreign body identification, intravenous (IV) injection training, abdominal ultrasound, ocular ultrasound, and ultrasound-guided lumbar puncture training.

Results

Most homemade models for foreign body identification, IV injection training, and ocular ultrasound could be created for less than $20. IV injection training models were the cheapest commercially available models. There are multiple commercially available options for abdominal ultrasound models, but no options were found for homemade construction. The construction cost for lumbar puncture models was larger due to the need to purchase an anatomically accurate set of lumbar vertebrae.

Conclusions

This study provides initial guidance and suggestions for ultrasound training models that are currently available. Ultrasound models that can be cheaply made or purchased increase accessibility for medical students to gain early exposure in a cost-effective and safe manner.

Simulation-based clinical learning for the third year medical student: Effectiveness of transabdominal and transvaginal ultrasound for elucidation of OB/GYN scenarios

PURPOSE

Point-of-care ultrasound (POCUS) is gaining recognition as a teaching modality that acts as an integrative learning tool during medical student transition to clinical rotations. This study aimed to determine if the use of ultrasound simulation enhances understanding of Obstetrical and Gynecological (Ob/Gyn) anatomy and pathology in third-year medical students (M3), and if M3 students found the simulator useful.

METHODS

M3 students taking the OB/Gyn clerkship were invited to participate. Baseline knowledge of pelvic ultrasound anatomy and pathology was assessed with a multiple-choice question test. Participants received a one-hour OB/Gyn ultrasound simulation training session. A post-test assessed knowledge after the intervention. Survey data was collected regarding learning styles and learner satisfaction.

RESULTS

Following simulator-based training, the median correct number of responses to the knowledge questions increased from 11 of 18 to 14 of 18 correct (P < .001). Statistically significant increases were also observed in comfort level with OB/GYN ultrasound (P < .001). All 68 students answered that the ultrasound simulator was helpful and enjoyed using the simulator.

CONCLUSIONS

This study suggests that ultrasound simulators are useful for improvement in knowledge, comfort level, and ability to identify pathology in Ob/Gyn scenarios in M3 students.

Consensus on technical procedures in radiology to include in simulation-based training for residents: a European-wide needs assessment

OBJECTIVES

To identify and prioritize technical procedures for simulation-based training that should be part of the education of residents in radiology.

METHODS

This European-wide needs assessment study used a modified Delphi technique to gather consensus from different key education stakeholders in the field. The first round was a brainstorming phase to identify all procedures that a newly specialized radiologist should potentially be able to do. In the second round, each procedure was explored for the need for simulation training; the participants determined frequency, number of radiologists performing the procedure, impact on patient comfort and safety, and feasibility of simulation. The result of this round was sent back to the participants for final evaluation and prioritization.

RESULTS

Seventy-one key education stakeholders from 27 European countries agreed to participate and were actively involved in the Delphi process: response rates were 72% and 82% in the second and third round, respectively. From 831 suggested procedures in the first round, these were grouped and categorized into 34 procedures that were pre-prioritized in the second round according to the need for simulation-based training. In the third round, 8 procedures were eliminated resulting in final inclusion of 26 procedures. Ultrasound procedures were highly ranked including basic skills such as probe handling; abdominal ultrasound; and ultrasound of kidneys, retroperitoneum, intestines, and scrotum.

CONCLUSION

The prioritized list of procedures represents a consensus document decided upon by educational stakeholders in radiology across Europe. These procedures are suitable for simulation and should be an integral part of the education of radiologists.

KEY POINTS

• The 26 identified procedures are listed according to priority and should be included as an integral part of simulation-based training curricula of radiologists across Europe. • This needs assessment is only the first step towards developing standardized simulation-based training programs that support the harmonization of education and training across Europe.

Impact of a 4-hour Introductory eFAST Training Intervention Among Ultrasound-Naïve U.S. Military Medics

INTRODUCTION

Advances in the portability of ultrasound have allowed it to be increasingly employed at the point of care in austere settings. Battlefield constraints often limit the availability of medical officers throughout the operational environment, leading to increased interest in whether highly portable ultrasound devices can be employed by military medics to enhance their provision of combat casualty care. Data evaluating optimal training for effective medic employment of ultrasound is limited however. This prospective observational cohort study's primary objective was to assess the impact of a 4-hour introductory training intervention on ultrasound-naïve military medic participants' knowledge/performance of the eFAST application.

MATERIALS AND METHODS

Conventional U.S. Army Medics, all naïve to ultrasound, were recruited from across JBLM. Volunteer participants underwent baseline eFAST knowledge assessment via a 50-question multiple-choice exam. Participants were then randomized to receive either conventional, expert-led classroom didactic training or didactic training via an online, asynchronously available platform. All participants then underwent expert-led, small group hands-on training and practice. Participants' eFAST performance was then assessed with both live and phantom models, followed by a post-course knowledge exam. Concurrently, emergency medicine (EM) resident physician volunteers, serving as standard criterion for trained personnel, underwent the same OSCE assessments, followed by a written exam to assess their baseline eFAST knowledge. Primary outcome measures included (1) post-course knowledge improvement, (2) eFAST exam technical adequacy, and (3) eFAST exam OSCE score. Secondary outcome measures were time to exam completion and diagnostic accuracy rate for hemoperitoneum and hemopericardium. These outcome measures were then compared across medic cohorts and to those of the EM resident physician cohort.

RESULTS

A total of 34 medics completed the study. After 4 hours of ultrasound training, overall eFAST knowledge among the 34 medics improved from a baseline mean of 27% on the pretest to 83% post-test. For eFAST exam performance, the medics scored an average of 20.8 out of a maximum of 22 points on the OSCE. There were no statistically significant differences between the medics who received asynchronous learning versus traditional classroom-based learning, and the medics demonstrated comparable performance to previously trained EM resident physicians.

CONCLUSIONS

A 4-hour introductory eFAST training intervention can effectively train conventional military medics to perform the eFAST exam. Online, asynchronously available platforms may effectively mitigate some of the resource requirement burden associated with point-of-care ultrasound training. Future studies evaluating medic eFAST performance on real-world battlefield trauma patients are needed. Skill and knowledge retention must also be assessed for this degradable skill to determine frequency of refresher training when not regularly performed.

Consensus-Based Expert Development of Critical Items for Direct Observation of Point-of-Care Ultrasound Skills

BACKGROUND

Point-of-care ultrasound (POCUS) is increasingly used in a number of medical specialties. To support competency-based POCUS education, workplace-based assessments are essential.

OBJECTIVE

We developed a consensus-based assessment tool for POCUS skills and determined which items are critical for competence. We then performed standards setting to set cut scores for the tool.

METHODS

Using a modified Delphi technique, 25 experts voted on 32 items over 3 rounds between August and December 2016. Consensus was defined as agreement by at least 80% of the experts. Twelve experts then performed 3 rounds of a standards setting procedure in March 2017 to establish cut scores.

RESULTS

Experts reached consensus for 31 items to include in the tool. Experts reached consensus that 16 of those items were critically important. A final cut score for the tool was established at 65.2% (SD 17.0%). Cut scores for critical items are significantly higher than those for noncritical items (76.5% ± SD 12.4% versus 53.1% ± SD 12.2%, P < .0001).

CONCLUSIONS

We reached consensus on a 31-item workplace-based assessment tool for identifying competence in POCUS. Of those items, 16 were considered critically important. Their importance is further supported by higher cut scores compared with noncritical items.

An Interprofessional Approach to Targeted Sonography Training Using Computer-Based Simulation in Medical Students’ Clinical Training: A Case Series

Purpose:

Document a feasibility study of an interprofessional approach to targeted sonography training (TST) for medical students, incorporating computer-based simulation (CBS).

Procedure:

Three participants received TST on the abdominal aorta from credentialed sonographers using CBS. Training included didactic instruction, skill demonstration, debrief, and feedback. An assessment template was developed to assess students’ skills and provide structured feedback. Students completed a feedback survey on the learning process that followed the training.

Results:

Students’ template scores were similar, despite varying prior exposure to CBS. The importance of deliberate practice, direct feedback when a student is struggling, and a debrief session following skill demonstration was evident in this study. Students agreed that this targeted instructional process provided a low-pressure environment where they could learn from mistakes and improve their confidence.

Conclusion:

This case series demonstrated how readily a TST session can be accomplished using computer-based simulation and the value of structured feedback.

The Use of Ultrasound Simulators to Strengthen Scanning Skills in Medical Students: A Randomized Controlled Trial

OBJECTIVES

This study evaluates the use of ultrasound simulators for retaining and improving ultrasound skills acquired in undergraduate ultrasound training.

METHODS

Fourth-year medical students (n = 19) with prior training in point-of-care sonography for shock assessment were recruited for this study. Students were randomly assigned to a study group (n = 10) that followed an undergraduate ultrasound training curriculum, then used a simulator to complete 2 self-directed practice ultrasound sessions over 4 weeks. The control group (n = 9) followed the same undergraduate ultrasound training curriculum and received no additional access to a simulator or ultrasound training. A blinded assessment of the students was performed before and after the 4-week study period to evaluate their image acquisition skills on standardized patients (practical examination). To evaluate the student's clinical understanding of pathological ultrasound images, students watched short videos of prerecorded ultrasound scans and were asked to complete a 22-point questionnaire to identify their findings (visual examination).

RESULTS

All results were adjusted to pretest performance. The students in the study group performed better than those in the control group on the visual examination (80.1% versus 58.9%; P = .003) and on the practical examination (77.7% versus 57.0%; P = .105) after the 4-week study period. The score difference on the postintervention practical examinations was significantly better for the study group compared to the control group (11.6% versus -9.9%; P = .0007).

CONCLUSION

The use of ultrasound simulators may be a useful tool to help previously trained medical students retain and improve point-of-care ultrasound skills and knowledge.

[Ultrasound training in emergency and intensive care medicine : Integration already in medical school?]

Ultrasound is an important diagnostic tool especially in emergency and intensive care medicine. It is always available at the bedside and shortens time to diagnosis. Many specialties have integrated ultrasound into diagnostic algorithms as part of the extended physical exam. Numerous differential diagnoses can be easily excluded using point-of-care ultrasound and therefore adequate treatment is initiated faster. Emergency or focused ultrasound is therefore of outstanding relevance to any emergency or critical care physician. Integration into medical school curricula is becoming more common tough no nationwide standards are in place yet.

Using Scenario-Based Simulation to Address Affective Behaviors in Sonography Students

Simulation in health care education is considered an educational strategy in which a particular set of conditions is created or replicated to resemble authentic situations that are possible in real life. This research study records sonography student self-reflected confidence levels in three patient care scenarios using pre- and postsimulation surveys and debriefing strategies. Student confidence improved in (1) explaining the examination, (2) prepping the patient, and (3) performing the examination. In addition, students stated they had more confidence in what to do when a negative outcome is communicated to the patient. They also expressed greater appreciation for the importance of institutional policies that guide patient care. Research is ongoing to determine whether the simulation lab experience correlates to improved student performance in the actual clinical setting. This research occurred in a simulation lab but could be replicated by using high-fidelity sonography simulators and assigning an actor to interact with student learners.

Methodological characteristics of randomized controlled trials of ultrasonography in emergency medicine

INTRODUCTION

Interest in ultrasonography in emergency medicine has increased in recent years, as reflected by a marked increase in publications on the topic. The aim of this study was to 1) describe and evaluate methodological characteristics of randomized controlled trials (RCTs) evaluating an ultrasound intervention in emergency department and 2) estimate whether the reports adequately described the intervention to allow replication.

METHODS

We searched MEDLINE via PubMed for RCTs published in 2015 assessing an ultrasound intervention, regardless of type, that were performed in an emergency department or evaluated in an emergency situation. Two researchers independently screened titles, abstracts and full texts. Data from all included studies were independently extracted. The Cochrane Collaboration Risk of Bias tool was used to assess risk of bias of reports, and the intervention reporting was evaluated by using the Template for Intervention Description and Replication checklist.

RESULTS

We identified 11 reports. The most frequent topic was vascular access/identification (n = 4). Random sequence generation and allocation concealment were performed correctly in 55% and 27% trials. Three quarters of reports (73%) showed improper reporting or absence of participant blinding. Risk of bias due to assessor blinding was rated low for 3 RCTs (27%), risk of attrition bias low for all reports, and risk of selective outcome reporting unclear for most reports (n = 10). Only 3 reports (27%) provided an optimal description of the intervention.

CONCLUSION

The quality of these trials raises questions. In our sample, the authors did not correctly report blinding of participants and assessors or allocation concealment.

Ultrasound simulation utilization among point of care ultrasound users: Results of a survey

PURPOSE

While ultrasound simulation devices have long been available as adjuncts to ultrasound education, it is unclear how they are used. We conducted a survey to determine the current utilization of emergency point-of-care ultrasound simulation and describe the current trends in the use of ultrasound simulation.

METHODS

A survey was sent to 1270 members of the American College of Emergency Physicians Ultrasound Section via email. The survey listed 23 questions that queried how survey participants used ultrasound simulation devices.

RESULTS

One hundred and fifty-one survey responses were collected. The majority of survey respondents (83%) indicated that ultrasound simulation devices are available at their institution, with nearly half (45%) survey participants reporting both high- and low-fidelity ultrasound simulators available, and fewer describing low-fidelity simulators only (33%) or high-fidelity simulators only (5%). Most respondents (84%) with ultrasound simulators use them for training residents, students, fellows, and faculty. Only 20% of survey participants use ultrasound simulators for credentialing purposes.

CONCLUSIONS

Ultrasound simulation devices are widespread amongst our survey respondents, who represent a small percentage of the ACEP ultrasound section. Ultrasound simulators are used to help ultrasound learners at various levels of training.

Ultrasonography in Undergraduate Medical Education: A Systematic Review

OBJECTIVES

The purpose of this study was to conduct a systematic review of the evidence of educational outcomes associated with teaching ultrasonography (US) to medical students.

METHODS

A review of databases through 2016 was conducted for research studies that reported data on teaching US to medical students. Each title and abstract were reviewed by teams of 2 independent abstractors to determine whether the article would be ordered for full-text review and subsequently by 2 independent authors for inclusion. Data were abstracted with a form developed a priori by the authors.

RESULTS

Ninety-five relevant unique articles were included (of 6936 identified in the databases). Survey data showed that students enjoyed the US courses and desired more US training. Of the studies that assessed US-related knowledge and skill, most of the results were either positive (16 of 25 for knowledge and 24 of 58 for skill) or lacked a control (8 of 25 for knowledge and 27 of 58 for skill). The limited evidence (14 of 95 studies) of the effect of US training on non-US knowledge and skill (eg, anatomy knowledge or physical examination skill) was mixed.

CONCLUSIONS

There is ample evidence that students can learn US knowledge and skills and that they enjoy and want US training in medical school. The evidence for the effect of US on external outcomes is limited, and there is insufficient evidence to recommend it for this purpose at this time.

Evaluation of Two Training Methods for Teaching the Abdominal Focused Assessment with Sonography for Trauma Technique (A-FAST) to First- and Second-Year Veterinary Students

Ultrasound techniques, including focused assessment with sonography for trauma (FAST) examinations, are commonly used in veterinary practice, making inclusion of ultrasound in veterinary curricula increasingly important. The best approach for teaching ultrasound techniques in veterinary medicine has not been evaluated. This study compared the results of two training techniques, live-animal training and online video instruction, on students' performance during abdominal FAST (A-FAST) examinations. Thirty-eight first- and second-year veterinary students were randomly assigned to learn A-FAST via a live-animal laboratory or an instructional video. The live-animal group received one-on-one instruction in A-FAST techniques during a single laboratory. The video group received a link to an instructional video demonstrating A-FAST techniques, allowing unlimited viewing opportunities over a two-week period. Both groups were also provided written instructional information. All participants were assessed on their ability to find and correctly name the four A-FAST quadrants on a live animal. We found a significant difference between the two groups in the students' ability to identify the diaphragmatic-hepatic (DH) view, but for the other three views (hepatorenal, splenorenal, and cystocolic), training method did not affect performance. Results suggest the potential for using a multi-modal instructional approach to teach ultrasound techniques to veterinary students.

Standardised assessment of competence in Focused Assessment with Sonography for Trauma

PURPOSE

The aim of this study was to develop and gather validity evidence for a standardised test of competence in Focused Assessment with Sonography for Trauma (FAST) and to define the appropriate cut-off point in simulation-based learning of the FAST protocol.

METHODS

A 20-item simulation-based test for assessing competence in FAST was created. The test was administered to thirteen novices and twelve radiologists experienced in abdominal ultrasound diagnostics. The Contrasting Groups' method was used to establish a credible passing score.

RESULTS

The internal consistency was high (Cronbach's α = 0.90) and the test had good discriminatory ability (P < .001). The mean score was 16.9 (95% CI: 15.5-18.3) in the experienced group and 8.0 (95% CI: 5.8-10.2) in the novice group, corresponding to 85% and 40% of the total score, respectively. A pass/fail standard of 14 points was established using the Contrasting Groups' method.

CONCLUSIONS

The FAST simulation-based test provided valid assessment of competence in FAST. The FAST test could be used to guide training and ensure basic competence of physicians using FAST.

Determining procedures for simulation-based training in radiology: a nationwide needs assessment

OBJECTIVES

New training modalities such as simulation are widely accepted in radiology; however, development of effective simulation-based training programs is challenging. They are often unstructured and based on convenience or coincidence. The study objective was to perform a nationwide needs assessment to identify and prioritize technical procedures that should be included in a simulation-based curriculum.

METHODS

A needs assessment using the Delphi method was completed among 91 key leaders in radiology. Round 1 identified technical procedures that radiologists should learn. Round 2 explored frequency of procedure, number of radiologists performing the procedure, risk and/or discomfort for patients, and feasibility for simulation. Round 3 was elimination and prioritization of procedures.

RESULTS

Response rates were 67 %, 70 % and 66 %, respectively. In Round 1, 22 technical procedures were included. Round 2 resulted in pre-prioritization of procedures. In round 3, 13 procedures were included in the final prioritized list. The three highly prioritized procedures were ultrasound-guided (US) histological biopsy and fine-needle aspiration, US-guided needle puncture and catheter drainage, and basic abdominal ultrasound.

CONCLUSION

A needs assessment identified and prioritized 13 technical procedures to include in a simulation-based curriculum. The list may be used as guide for development of training programs.

KEY POINTS

• Simulation-based training can supplement training on patients in radiology. • Development of simulation-based training should follow a structured approach. • The CAMES Needs Assessment Formula explores needs for simulation training. • A national Delphi study identified and prioritized procedures suitable for simulation training. • The prioritized list serves as guide for development of courses in radiology.

Ultrasound Curricula in Undergraduate Medical Education: A Scoping Review

The clinical applications of point-of-care ultrasound (US) have expanded rapidly over the past decade. To promote early exposure to point-of-care US, there is widespread support for the integration of US curricula within undergraduate medical education. However, despite growing evidence and enthusiasm for point-of-care US education in undergraduate medical education, the curricular design and delivery across undergraduate medical education programs remain variable without widely adopted national standards and guidelines. This article highlights the educational and teaching applications of point-of-care US with a focus on outcomes. We then review the evidence on curricular design, delivery, and integration and the assessment of competency for point-of-care US in undergraduate medical education.

Improving the quality of transvaginal ultrasound scan by simulation training for general practice residents

Background

Ultrasonography (US) is an essential tool for the diagnosis of acute gynecological conditions. General practice (GP) residents are involved in the first-line management of gynecologic emergencies. They are not familiar with US equipment. Initial training on simulators was conducted.

The aim of this study was to evaluate the impact of simulation-based training on the quality of the sonographic images achieved by GP residents 2 months after the simulation training versus clinical training alone.

Methods

Young GP residents assigned to emergency gynecology departments were invited to a one-day simulation-based US training session. A prospective controlled trial aiming to assess the impact of such training on TVS (transvaginal ultrasound scan) image quality was conducted. The first group included GP residents who attended the simulation training course. The second group included GP residents who did not attend the course. Written consent to participate was obtained from all participants. Images achieved 2 months after the training were scored using standardized quality criteria and compared in both groups. The stress generated by this examination was also assessed with a simple numeric scale.

Results

A total of 137 residents attended the simulation training, 26 consented to participate in the controlled trial. Sonographic image quality was significantly better in the simulation group for the sagittal view of the uterus (3.6 vs 2.7, p = 0.01), for the longitudinal view of the right ovary (2.8 vs 1.4, p = 0.027), and for the Morrison space (1.7 vs 0.4, p = 0.034), but the difference was not significant for the left ovary (2.9 vs 1.7, p = 0.189). The stress generated by TVS after 2 months was not different between the groups (6.0 vs 4.8, p = 0.4).

Conclusion

Simulation-based training improved the quality of pelvic US images in GP residents assessed after 2 months of experience in gynecology compared to clinical training alone.

Comparative Analysis of Simulated versus Live Patient-Based FAST (Focused Assessment With Sonography for Trauma) Training

OBJECTIVE

To investigate whether simulated patient (SP)-based training has comparable efficacy as live patient (LP)-based training in teaching Focused Abdominal Sonography for Trauma (FAST) knowledge and skill competencies to surgical residents.

DESIGN

A randomized pretest/intervention/posttest controlled study design was employed to compare the participants' performance in written and practical examinations regarding FAST examination after SP-based versus LP-based training.

SETTING

University-based general residency program at a single institution.

PARTICIPANTS

A total of 29 general surgery residents of various training levels and sonographic experience were recruited by convenience sampling.

RESULTS

There was no correlation between subjects' baseline training level or sonographic experience with either the posttest-pretest score difference or the percentage of subjects getting all 4 windows with adequate quality. There was no significant difference between the improvement in written posttest-pretest scores for SP and LP group, which were 33 ± 9.6 and 31 ± 6.8 (p = 0.40), respectively. With regard to performance-based learning efficacy, a statistically higher proportion of subjects were able to obtain all 4 windows with adequate quality among the LP than the SP group (6/8 vs 1/8, p = 0.01).

CONCLUSION

SP- and LP-based FAST training for surgical residents were associated with similar knowledge-based competency acquisition, but residents receiving LP-based training were better at acquiring adequate FAST windows on live patients. Simulation training appeared to be a valid adjunct to LP practice but cannot replace LP training. Future investigations on how to improve simulation fidelity and its training efficacy for skill-based competencies are warranted.

Critical Appraisal of Emergency Medicine Educational Research: The Best Publications of 2015

OBJECTIVE

The objectives were to critically appraise the medical education research literature of 2015 and review the highest-quality quantitative and qualitative examples.

METHODS

A total of 434 emergency medicine (EM)-related articles were discovered upon a search of ERIC, PsychINFO, PubMED, and SCOPUS. These were both quantitative and qualitative in nature. All were screened by two of the authors using previously published exclusion criteria, and the remaining were appraised by all authors using a previously published scoring system. The highest scoring articles were then reviewed.

RESULTS

Sixty-one manuscripts were scored, and 10 quantitative and two qualitative papers were the highest scoring and are reviewed and summarized in this article.

CONCLUSIONS

This installment in this critical appraisal series reviews 12 of the highest-quality EM-related medical education research manuscripts published in 2015.

Critical Appraisal of Emergency Medicine Educational Research: The Best Publications of 2015

OBJECTIVE

The objectives were to critically appraise the medical education research literature of 2015 and review the highest-quality quantitative and qualitative examples.

METHODS

A total of 434 emergency medicine (EM)-related articles were discovered upon a search of ERIC, PsychINFO, PubMED, and SCOPUS. These were both quantitative and qualitative in nature. All were screened by two of the authors using previously published exclusion criteria, and the remaining were appraised by all authors using a previously published scoring system. The highest scoring articles were then reviewed.

RESULTS

Sixty-one manuscripts were scored, and 10 quantitative and two qualitative papers were the highest scoring and are reviewed and summarized in this article.

CONCLUSIONS

This installment in this critical appraisal series reviews 12 of the highest-quality EM-related medical education research manuscripts published in 2015.

Focused assessment with sonography for trauma: current perspectives

Focused assessment with sonography for trauma (FAST) is a part of resuscitation of trauma patients recommended by international panel consensus. The purpose of FAST is to identify free fluid, which necessarily means blood in acute trauma patients. In this article, the authors focused on various aspects of FAST in the emergency department, prehospital care, pediatric setting, training and general pearls/pitfalls. Detailed techniques and interpretation of FAST are beyond the scope of this article.

Can Limited Education of Lung Ultrasound Be Conducted to Medical Students Properly? A Pilot Study

Objectives. Lung ultrasonography (LUS) is a useful examination to identify lung problems. Unfortunately, there are currently no LUS educational programs for medical students. We designed a brief LUS training course for medical students during the ED rotation. The purpose of training was improving cognitive and psychomotor learning domains, knowledge of ultrasound, knowledge of LUS, image acquisition, and image interpretation. Methods. Forty students in their fourth year of medical school were enrolled in this study. Student achievement was evaluated through examinations of cognitive and psychomotor skills. A survey was administered following the training. Results. The average test result was 42.1 ± 13.7 before training and 82.6 ± 10.7 after training. With respect to the assessment of LUS performance, the acceptable rates for right and left anterior chest wall scanning and right and left posterolateral scanning were 95%, 97.5%, 92.5%, and 100%, respectively. The students felt a high level of confidence in their ability to administer LUS to patients after training and they agreed that inclusion of LUS training in the medical school curriculum is necessary. Conclusion. This study showed that, among the medical students without ultrasound experience, limited LUS education to improve their knowledge, image acquisition, and interpretation ability was successful.