Ronan Smith, a postdoctoral research fellow at Adelaide University, has been awarded the prestigious Physics in Medicine & Biology (PMB) Early Career Researcher Award for his groundbreaking work in X-ray velocimetry (XV). This award recognizes the best paper in PMB's 2025 Early Career Researcher Focus Collection, and Smith's research has made significant strides in understanding lung function and treatment options for emphysema.
Unlocking the Potential of XV Imaging
Smith's research focuses on XV, a novel imaging technique that utilizes X-rays to track lung motion during breathing. By creating 3D maps of local ventilation, XV provides valuable insights into airflow patterns and changes in lung function. In his award-winning paper, Smith explores the potential of XV to detect alterations in lung function following the insertion of endobronchial valves (EBVs), a non-surgical treatment for emphysema.
EBVs are one-way valves placed in the lungs to treat emphysema, a condition causing air trapping and breathing difficulties. Smith's study demonstrates that XV imaging can accurately assess the impact of EBV placement by visualizing and quantifying changes in airflow. This is a significant advancement, as traditional CT scans only measure structural changes, which may not always correlate with lung function.
In Vivo Demonstration and Future Prospects
In a pilot study using healthy sheep, Smith and his team employed XV imaging to track lung motion before and after EBV insertion. The XV LVAS software from 4DMedical played a crucial role in analyzing the data, correlating motion with CT scans to create detailed 3D maps of ventilation. The results were remarkable, showing a reduction in airflow to areas downstream of the valves, even in regions not visible on CT scans.
Smith's work has opened up exciting possibilities for improving emphysema treatment. By providing a more comprehensive understanding of lung function, XV imaging can enhance the placement and verification of EBVs, leading to better treatment outcomes. Additionally, Smith's research has sparked interest in other applications, including a pediatric clinical trial examining XV's feasibility in children with cystic fibrosis.
Personal Reflection and Future Endeavors
As an early-career researcher, Smith is passionate about expanding the potential of XV imaging. He is currently working with an interdisciplinary team to explore lung function changes in various diseases, aiming to understand these conditions and evaluate treatment outcomes. Smith's enthusiasm for XV's applications extends to dark-field X-ray imaging, a novel method he is developing to further enhance X-ray imaging capabilities.
The PMB Early Career Researcher Award holds immense significance for Smith, as it acknowledges the collaborative efforts of clinicians, scientists, and industry partners. He views this award as a validation of his work's impact and a powerful tool to secure funding for continued research. Smith's dedication to advancing medical physics and his commitment to improving patient care are truly inspiring.
