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Possible Radiographic Errors

Possible Radiographic Errors. Radiology. During Exposure. Film is bent during set up and exposure Causing distortion. Elongation. Vertical angulation error; not enough positive angle on max or negative angle on md. Foreshortening.

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Possible Radiographic Errors

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  1. Possible Radiographic Errors Radiology

  2. During Exposure • Film is bent during set up and exposure • Causing distortion

  3. Elongation • Vertical angulation error; not enough positive angle on max or negative angle on md

  4. Foreshortening • Also vertical angulation; too much angulation; correct by decreasing vertical angulation

  5. Overlapping • Incorrect horizontal angulation; cone is angled toward mesial or distal surfaces of teeth, instead of at interproximal areas • *Evaluate film placement in regard to curve of arch, NOT pt;s face/cheeks

  6. Conecutting • X-ray beam missed part of the film; film is only partially exposed

  7. Clear Film • Film was not exposed to any radiation

  8. Double Exposure • Film is exposed twice; results in blurred images or dark x-ray

  9. Blurred Image • Result from movement of pt’s head or tubehead or from film moving in pt’s mouth

  10. Underexposed Film • Light and has thin image; check the settings for mAs, kVs and exposure time; also occurs if cone is not positioned close enough to pt’s face

  11. Overexposed Film • Dark image; check settings again

  12. Radiopaque Film • Metal objects; check for and remove

  13. Backward Film • Placing film reversed causes image to be white and a herringbone pattern to be seen

  14. Film Processing

  15. Light film image • Underprocessed; developing time too short, developing temp too low, developing solution weak from overuse and needs to be changed

  16. Dark film image • Over developing: developing solution temp too high, devel solution too stong, film left in devel too long

  17. Fogged Film • Gray appearance, film image detail is lost, contrast is lessened; improper storage conditions, outdated films, light leaks in processing room, light leaks on daylight loaders

  18. Partial Image • Solution levels are low

  19. Film Artifacts • Result from improper handling; water spots on unprocessed films leaves clear area; fixer on unprocessed film leaves white area; developer leaves black area; also, yellow/brown stain from not rinsing properly, black artifacts from static electicity, fluroide leaves fingerprint smudge; films which touch leave shape of edge or corner of film

  20. Torn or Scratched • Rough handling; leaves white area or mark on processed film

  21. Air Bubbles on Film • Trapped on film if not agitated when placed in processing solutions; leaves round white spots

  22. Reticulation • When film has been exposed to high temp then low temp; looks dried with tiny cracks

  23. Streaks • Dirty rollers or x-ray racks

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