The FLUORO-4 phantom by Leeds Test Objects is specifically crafted for assessing the image quality performance of both digital and conventional fluoroscopy X-ray systems. The intended use involves conducting tests at the system's acceptance to establish a baseline for performance. Furthermore, routine evaluations are recommended, with the goal of maintaining an ongoing record of test results. This continuous monitoring enables the detection of any potential deterioration in the system's performance over time. The emphasis on routine testing and record-keeping underscores the importance of proactive quality control to ensure the consistent and reliable functioning of fluoroscopy X-ray systems.

FLUORO-4 features

1. Tube axis direction markings 

2. Limiting spatial resolution (0.6 − 5.0 LP/mm) 

3. Low contrast resolution details (8 x 10mm diameter details, depths 0.4 − 4.0 mm) 

4. Dynamic range (17 different thickness Cu steps each with a central 4.0mm diameter detail, depth 2.5 mm) 

5. kV test-area (Yb 0.78mm) 

6 .Unstructured inner area (centre-marked) 

7. Radiopaque numbers indicating dynamic range steps