Background: Multiple factors can lead to overuse of diagnostic imaging for venous thromboembolism (VTE). These include fear of missing a potentially fatal diagnosis, low predictive accuracy of clinical gestalt, prediction rules, and risk assessment models for VTE, and increased access to imaging. Diagnostic imaging for deep venous thrombosis (DVT) with doppler ultrasonography, or for pulmonary [...]

Background: The Choosing Wisely campaign discourages CT imaging in low-risk patients with suspected pulmonary embolism (PE) (e.g., low clinical probability and negative d-dimer). Few studies have investigated patient, provider, or operational characteristics associated with overuse of CT imaging. One possible approach to this research question is to examine variability in diagnostic yield (i.e., the percentage [...]