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 |
| State | Published - Nov 1989 |
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Keywords
- panoramic
- Radiography
ASJC Scopus subject areas
- Radiological and Ultrasound Technology
- Dentistry(all)
- Radiology Nuclear Medicine and imaging
- Otorhinolaryngology
Cite this
A method to maintain a constant magnification factor throughout the exposure of rotational panoramic radiographs. / McDavid, W. D.; Tronje, G.; Welander, U.
In: Dentomaxillofacial Radiology, Vol. 18, No. 4, 11.1989, p. 160-168.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A method to maintain a constant magnification factor throughout the exposure of rotational panoramic radiographs
AU - McDavid, W. D.
AU - Tronje, G.
AU - Welander, U.
PY - 1989/11
Y1 - 1989/11
N2 - 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.
AB - 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.
KW - panoramic
KW - Radiography
UR - http://www.scopus.com/inward/record.url?scp=0024760625&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0024760625&partnerID=8YFLogxK
M3 - Article
C2 - 2640447
AN - SCOPUS:0024760625
VL - 18
SP - 160
EP - 168
JO - Dentomaxillofacial Radiology
JF - Dentomaxillofacial Radiology
SN - 0250-832X
IS - 4
ER -