Low Dose X-Ray Sources and High Quantum Efficiency Sensors: The Next Challenge in Dental Digital Imaging?

Low Dose X-Ray Sources and High Quantum Efficiency Sensors: The Next Challenge in Dental Digital Imaging?

Citation

Mistry, A. R., Feldman, D. U., Yang, J., & Ryterski, E. (2014). Low Dose X‐Ray Sources and High Quantum Efficiency Sensors: The Next Challenge in Dental Digital Imaging? Radiology Research and Practice, 2014, 543524. This article is available through open access under the Creative Commons Attribution License.

Keywords

  • low dose X-ray imaging
  • LDXI, milliamperes
  • mA
  • quantum efficiency
  • QE, microlens
  • image resolution
  • static radiography
  • dynamic radiography
  • dose exposure
  • pixel size
  • medical fluoroscopy
  • digital intraoral radiography
  • CBCT scan

Brief

A low dose X-ray imaging (LDXI) prototype, using a low milliamperes (mA) X-ray source and a high quantum efficiency (QE) sensor with microlens, can obtain high definition image resolution for static and dynamic radiography at lower or similar dose exposure and smaller pixel size when compared to current imaging technologies. The prototype, tested against medical fluoroscopy, digital intraoral radiography, and CBCT scan using a dental phantom, showed no statistical significance in dose exposure between the LDXI static mode and medical fluoroscopy or digital intraoral radiography. The LDXI static mode had the highest image resolution, followed by digital intraoral radiography, LDXI dynamic mode, medical fluoroscopy, and lastly, CBCT scan.

Summary
This research article, authored by Arnav R. Mistry, Daniel Uzbelger Feldman, Jie Yang, and Eric Ryterski, was published in Radiology Research and Practice in 2014. The article focuses on the potential of low dose X-ray imaging (LDXI) in dentistry, specifically a prototype combining a low mA X-ray source and a high QE sensor with microlens.
The study aimed to evaluate the LDXI prototype's dose exposure and image resolution compared to existing dental imaging technologies.
Here’s a breakdown of the study:

  • The study compared the LDXI prototype in static and dynamic modes to medical fluoroscopy, digital intraoral radiography, and CBCT scans.
  • A dental phantom was used to measure dose exposure in mGy and image resolution in lp/mm.
  • The findings demonstrated that the LDXI prototype provided comparable or lower dose exposure than traditional methods while achieving equal or superior image resolution.
  • For instance, using the LDXI prototype for 0.2 seconds resulted in a 93.4% reduction in dose exposure compared to digital intraoral radiography used for the same duration.
  • The researchers concluded that the LDXI prototype demonstrates the potential for high-definition imaging in static and dynamic radiography with lower dose exposure and enhanced image detail.

The authors suggest that this technology could be applied to various dental imaging applications, including intraoral radiography, fluoroscopy, panoramic, cephalometric, and CBCT scans. They recommend further research to explore the full potential of LDXI in dentistry.

Origin: https://onlinelibrary.wiley.com/doi/epdf/10.1155/2014/543524
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