First test on three stitching methods with digital detectors used in radiography

Area of Science:

• Medical Imaging
• Radiography
• Diagnostic Imaging

Background:

• Large area X-ray examinations, such as for the lower spine, require specialized techniques.
• Computed radiography (CR) uses single cassettes, while flat-panel digital radiography (DR) necessitates image stitching for extensive areas.

Purpose of the Study:

• To evaluate and compare three stitching techniques (linear, rotational, wide) for DR imaging.
• To determine the optimal stitching method based on image quality, ease of use, and development simplicity.

Main Methods:

• Three stitching modes were tested: linear, rotational, and wide.
• Evaluation parameters included image quality, examination time (ease of use), and development complexity.

Main Results:

• Rotational stitching provides excellent image quality with no parallax errors but is mechanically complex.
• Linear stitching is simpler but yields lower image quality.
• Wide stitching offers good image quality comparable to CR but faces development challenges with collimators.

Conclusions:

• Rotational stitching is currently the preferred method for large area DR imaging due to superior image quality, despite its complexity and cost.
• Ongoing improvements focus on simplifying linear stitching, while wide stitching requires further development for practical implementation.