Goal: Develop a fixed-kVp, variable mAs technique chart that provides the ideal exposure settings to achieve optimal image quality with a Thales FPD system.
When it comes to the creation of technique charts, a fixed kVp-variable mAs approach involves finding and choosing the most optimal kVp (enough to penetrate the part without diminishing subject contrast) for a radiographic exam. In this approach, kVp stays constant, while mAs is the factor being adjusted to compensate for varying part thicknesses. When compared to other technique chart approaches, fixed kVp-variable mAs is favored due to its simplicity of use, consistency of radiographic quality, uniformity of subject contrast, accuracy, and adequate penetration of anatomic parts regardless of size. For these reasons, our project will focus on developing a fixed-kVp chart that will assist in optimal and effective exposure settings selection, regardless of varying part thicknesses. We will test out varying technique selections on the anatomic parts of a full-body phantom for ten different projections until an optimal technique is selected for each exposure.
Generate a fixed kVp technique chart for the full-body adult phantom using the Thales Flat Panel Detector system.
Verify a fixed kVp technique chart that justifies the essential factors including SID, OID, the use of grid, kVp, mAs, etc.
Stabilize the technical factors to attain optimal image quality while reducing radiation dose. All exposures should generate a DI value within the +/- 0.5 range.
Regulate technical factors to improve stability and consistency using the Thales Flat Panel Detector system.