Utilization of a thorax anthropomorphic phantom for dose assessment and scanning protocol synchronization in computed tomography

Optimizing radiation dose while maintaining image quality remains a key challenge in computed tomography (CT). This study used a thorax-specific anthropomorphic phantom to assess patient dose, image quality, and artefact presence under automated tube current modulation settings and to evaluate the effect of tube voltage on Hounsfield Unit (HU) response for different iodine concentrations. Dose metrics, noise levels, and image quality indicators were extracted from Digital Imaging and Communications in Medicine (DICOM) metadata and image analysis. The study examined how patient positioning affects modulation performance and how tube voltage influences HU values in iodinated inserts. Results revealed inconsistencies in dose modulation across CT systems and highlighted the importance of synchronized protocols. A methodology was proposed to harmonize scanning protocols, ensuring consistent image quality and improved patient safety. These findings demonstrate the value of anthropomorphic phantoms in validating and optimizing CT protocols across clinical environments.