Abstract
Background Ultrasound imaging is utilized in Swiss primary care; however, little is known regarding the extent to which it is performed. A course in Point-of-Care ultrasound (POCUS) has been recently introduced to promote and improve the utilization of ultrasound. POCUS will offer faster certification compared to previous courses thanks to a limited set of targeted examinations. With this study, we aim to (1) provide an overview of ultrasound use by general practitioners (GPs), and (2) determine how the clinical uses of ultrasound relate to the targeted objectives of POCUS. Methods This is a quantitative study, analyzing fifteen years of billing data from 213 GPs in Central Switzerland and cross-sectional survey data completed by 61 GPs attending 26 certification and refresher courses offered by the Swiss Society of Ultrasound in Medicine (SGUM). Results According to billing data, 49% of the GPs used ultrasound and provided 130,245 exams to 67,180 patients between 2004 and 2018. Over the years, ultrasound use became more frequent among GPs. Male GPs provide more ultrasound exams than female GPs. Patients that are female, ≥65 years, and multi-morbid had more ultrasound exams compared to males, patients <65 years, and those with only one morbidity, respectively. GPs provided a mean of 129 ultrasound exams per physician-year. Abdominal ultrasound comprised almost 69% of all exams. According to survey data, indications covered many organ systems and clinical conditions, with most POCUS indications being among them. Conclusions Utilization of ultrasound is high among general practitioners and covers a wide range of indications. A focus in certification on POCUS might reduce the variety of indications. Keywords: Ultrasound; general practice; primary care; general practitioners; clinical indications; POCUS; ultrasound certification; Switzerland