Edge enhancement to improve visualizations of tube/line placement in x-ray imaging

TLDR: A nonlinear unsharp masking algorithm designed specifically to improve visualization of tube and line placements in chest X-ray imaging is presented in this article. But this algorithm was incorporated as an on-demand button in the design of a PACS display console.

Abstract: A nonlinear unsharp masking algorithm designed specifically to improve visualization of tube and line placements in chest x-ray imaging is presented in this paper. This algorithm was incorporated as an on-demand button in the design of a PACS display console. To address the concerns of radiologists about the artifacts accompanying image processing operations, we utilized a window-shade display scheme that shows both processed and unprocessed images simultaneously in the same display window at full resolution. We have found that the new algorithm enhances more details in low contrast areas without more over-shootings at high contrast edges. This algorithm is beneficial to tube/line placement examinations since the tips of tubes and lines are typically located in the areas of high brightness and low contrast. Preliminary results indicate that our modified unsharp masking algorithm as an option in a PACS workstation leads to better visualizations of tube-placement position for MICU physicians.© (1995) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.