치과방사선 (Journal of Korean Academy of Oral and Maxillofacial Radiology)

대한영상치의학회 (Korean Academy of Oral and Maxillofacial Radiology)
권호 표지

두부방사선 계측과 Photographic subtraction을 이용한 측모 두부방사선 규격사진의 재현성에 관한 연구

EVALUATION OF THE REPRODUCIBILITY IN CEPHALOGRAPHY USING ROENTGENOCEPHALOMETRICS AND PHOTOGRAPHIC SUBTRACTION

  • 전선두 (부산대학교 치과대학 치과방사선학 교실) ;
  • 나경수 (부산대학교 치과대학 치과방사선학 교실)
  • Jeon Seon-Doo (Department of Dental Radiology, College of Dentistry, Pusan National University) ;
  • Nha Kyung-Soo (Department of Dental Radiology, College of Dentistry, Pusan National University)
  • 발행 : 1994.12.01
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초록

The reproducibility of cephalography in repeated exposures were studied by tracing and photographic subtraction. The materials consisted of 50 pairs of 'same day' radiograph taken under identical conditions. The evaluation included skull, cervical column, hyoid bone, pharynx, tongue, soft tissue profile resulting 43 items in tracing, and 19 items in photographic subtraction. The results obtained from the differences between each pair were as follows: 1. The means and standard deviations by tracing of skull, cervical column, hyoid bone, pharynx, tongue, soft tissue profile were 0.34±0.62㎜, 1.02±1.59㎜, 1.37±1.78㎜, 0.55±1.16㎜, 0.51±1.51㎜, 0.15±0.3㎜ each. 2. The means and standard deviations by photographic subtraction of skull, cervical column, hyoid bone, pharynx, tongue were 0.09±0.35㎜, 0.70±0.95㎜, 1.22±1.33㎜, 0.53±0.86㎜, 0.27±0.41㎜ each.

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