High-resolution intraoral tomosynthesis imaging using small focal spot multi-beam X-ray source technology

Area of Science:

• Medical Imaging
• Dental Technology
• X-ray Physics

Background:

• Increasing demand for detailed intraoral dental health assessment.
• Need for advanced X-ray imaging technologies for high-resolution dental visualization.

Purpose of the Study:

• Propose and evaluate a multi-beam X-ray source for high-resolution 3D intraoral imaging.
• Analyze key parameters affecting X-ray imaging resolution.
• Validate the clinical potential of the developed system.

Main Methods:

• Established a theoretical framework for X-ray imaging resolution.
• Constructed an experimental platform for multi-beam X-ray tube performance testing.
• Systematically analyzed focal spot size, detector pixel size, magnification, and line-pair resolution.

Main Results:

• Multi-beam X-ray tube operated at 70 kV and 7 mA.
• Measured focal spot sizes averaged 0.47 mm, achieving 16 line-pair/mm resolution.
• System achieved 31.3 μm resolution (16 lp/mm) with a 18.5 μm pixel detector, acquiring seven projections in 1 second.

Conclusions:

• The multi-beam X-ray source is reliable and suitable for high-resolution intraoral imaging.
• The technology demonstrates significant clinical potential for detecting dental pathologies.
• Advanced X-ray imaging offers improved diagnostic capabilities in dentistry.