A qualitative study of perceived barriers and facilitators to point-of-care ultrasound use among Veterans Affairs Emergency Department providers.

Consistent point-of-care ultrasound (POCUS) use and retention is difficult to achieve, with prior studies citing a lack of provider training, credentialed ultrasound users, and image review as contributing factors. We aimed to assess user feedback on a POCUS implementation intervention by identifying and characterizing the perceived barriers and facilitators at a single Veterans Affairs (VA) hospital using the consolidated framework for implementation research (CFIR). We implemented a co-designed multifaceted training intervention at a VA emergency department (ED) to enhance POCUS usability and sustainability from November 2021-October 2022. We performed semi-structured interviews with 13 attending physicians and 1 Advanced Practice Provider (average of 15 years of clinical practice) in August-October 2022. Interviews were audio-recorded, transcribed, and double-coded using inductive content analysis and mapped to the CFIR, using deductive coding strategies. Through inductive analysis, five major themes emerged: 1) POCUS workflow convenience and efficiency, 2) ED environment and resources, 3) perceptions of high clinical utility of POCUS, 4) perceptions of high educational utility of POCUS, and 5) peer influences, feedback, and teaching. Within these major themes, POCUS facilitator subthemes include: machine availability, use in resident teaching, use in ED procedures, hands-on group training, colleagues' contagiousness and enthusiasm, and support from ultrasound faculty, ED, and hospital leadership. POCUS barrier subthemes were: time constraints, alternative radiology imaging availability, cumbersome steps for image acquisition and documentation/storage, and limited POCUS knowledge and skills comfort. Additional needs identified through CFIR mapping (archiving software, image review process, and faculty credentialing), require development locally to strengthen provider skills and reduce duplicated radiology studies. Our model is a reproducible clinical tool to evaluate barriers and facilitators to POCUS program implementation at any site. Future work should tailor POCUS education to individuals, use momentum from positive peer feedback including "ED clinical champions", and integrate ED/hospital leadership support for program sustainability.