Dual-energy subtraction relies on the differential attenuation of low- and high-energy photons by body tissues, enabling enhanced imaging to selectively highlight bones and soft tissues. Historically, the application of dual-energy X-ray imaging has been constrained by heightened radiation exposure and motion artefacts stemming from the necessity for multiple exposures during image acquisition [1]. However, the emergence of portable, single-exposure dual-energy X-ray imaging has mitigated these concerns. This study aims to evaluate the augmented diagnostic confidence in a non-radiological review setting of portable dual-energy chest X-ray compared to conventional radiography, particularly focusing on the visibility of lines and tubes and overall confidence among diverse medical professionals.