Abstract
Objective: The purpose of this research was to develop a simple quality assurance phantom that could be used for the initial calibration and follow-up testing of commercially available intraoral digital imaging systems. Study design: A radiographic phantom was constructed that contains a calibrated step wedge for measuring dose response, an etched pattern of slits in a metallic background for measuring the spatial resolution in line pairs per millimeter, and 2 rows of wells of varying diameter and depth in an acrylic background for contrast-detail analysis. Quality assurance protocols were developed and validated. Results: The quality assurance phantom provides a method of assessing a digital intraoral imaging system by measuring the sensitivity and dynamic range, the contrast/detail detectability and the spatial resolution. Conclusions: This quality assurance phantom can serve as an effective means to calibrate and monitor the performance characteristics of a digital dental intraoral imaging system.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 632-639 |
| Number of pages | 8 |
| Journal | Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology |
| Volume | 112 |
| Issue number | 5 |
| DOIs | |
| State | Published - Nov 2011 |
ASJC Scopus subject areas
- Surgery
- Oral Surgery
- Otorhinolaryngology
- Dentistry(all)