DCR Can Better Detect PE

Background: The rapid and accurate diagnosis of pulmonary embolism (PE) is essential for determining optimal patient treatment. An advanced technique called dynamic chest radiography (DCR) using x-ray and a pulsed x-ray generator for detection of PE has been recently introduced. This approach does not require contrast administration and delivers less radiation than does the typical contrast-enhanced CT (CECT). Objective: To determine whether use of DCR with chest radiography (CR) for detection of PE could provide adequate results when compared to CECT scans. Participants: Patients with a suspected PE diagnosis who underwent CR and DCR followed by chest CECT within 72 hours from June 2020 to August 2022. Methods: DCR was performed while the patient was inspiratory breath-holding for 7 to 10 seconds. A flat-panel detector and a pulsed x-ray generator were used for the digital CR (DCR), with the patient imaged in both standing and supine positions. From the DCR data, dynamic perfusion i more...