Abstract
The magnification factor can be held constant throughout the exposure of a panoramic radiograph by maintaining the physical centre of rotation equidistant from the central plane of the image layer. This may be accomplished with computer-controlled movement patterns while the effective centre of rotation follows a path selected to provide an optimal projection of the jaws. Theoretical considerations for creation of a constant magnification factor are presented and the practical implementation of the technique in a commercially available device (OrthOralix SD, Philips, Monza, Italy) is described. This technique minimizes distortion in panoramic radiographs and makes horizontal measurements possible in certain selected cases.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 160-168 |
| Number of pages | 9 |
| Journal | Dentomaxillofacial Radiology |
| Volume | 18 |
| Issue number | 4 |
| DOIs | |
| State | Published - Nov 1989 |
Keywords
- Radiography
- panoramic
ASJC Scopus subject areas
- Otorhinolaryngology
- Radiology Nuclear Medicine and imaging
- Dentistry(all)
Fingerprint Dive into the research topics of 'A method to maintain a constant magnification factor throughout the exposure of rotational panoramic radiographs'. Together they form a unique fingerprint.
Cite this
McDavid, W. D., Tronje, G., & Welander, U. (1989). A method to maintain a constant magnification factor throughout the exposure of rotational panoramic radiographs. Dentomaxillofacial Radiology, 18(4), 160-168. https://doi.org/10.1259/dmfr.18.4.2640447