Developing Skill and Expertise in the Use of Panoramic Radiography
Developing Skill and Expertise in the Use of Panoramic Radiography
Developing Skill and Expertise in the Use of Panoramic Radiography
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5/13/2013<br />
<strong>Panoramic</strong> Imag<strong>in</strong>g<br />
• A s<strong>in</strong>gle tomographic image <strong>of</strong> <strong>the</strong> facial structures <strong>in</strong>clud<strong>in</strong>g:<br />
• Maxilla<br />
• M<strong>and</strong>ible<br />
• All <strong>the</strong> support<strong>in</strong>g structures<br />
• A tomographic series is comprised <strong>of</strong> multiple cuts<br />
(exposures) 0.5cm apart<br />
• Requires rotat<strong>in</strong>g, slit-beam exposure with rotat<strong>in</strong>g (reciprocat<strong>in</strong>g)<br />
receptor<br />
• Can be film or digital sensors<br />
Courtesy <strong>of</strong> Mosby, Inc., Elsevier Pub, 2009..<br />
Image Layer -or-<br />
Focal Trough -or-<br />
Focal Plane<br />
• A narrow, specific, curved, fixed space between <strong>the</strong> x-ray<br />
source (x-ray tube) <strong>and</strong> <strong>the</strong> film<br />
• Can vary <strong>in</strong> shape from one unit to ano<strong>the</strong>r, but is specifically<br />
shaped to record <strong>the</strong> human jaw<br />
• Is where <strong>the</strong> images projected onto <strong>the</strong> radiograph are recorded<br />
clearly<br />
• When <strong>the</strong> patient is improperly positioned with<strong>in</strong> this space, it is<br />
<strong>the</strong> source <strong>of</strong> many errors that can result <strong>in</strong> an undiagnostic<br />
image<br />
3
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