대한구강악안면방사선학회

Korean Academy of Oral and Maxillofacial Radiology

학회지

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두부방사선계측과 photographic subtraction을 이용한 측모 두부방사선규격사진의 재현성에 관한 연구
저자 : 전선두, 나경수
1994년|24권 2호|Page : 347-359|조회수 876
Full Text : 1994_347.pdf (681.3K)
TI : Evaluation of the reproducibility in cephalography using roentgenocephalometrics and photographic subtraction

 AU : Jeon SD; Nha KS
 AD : Department of Dental Radiology, College of Dentistry, Pusan National University
 SO : JKAOMFR, 1994;24(2):347-359
 ISSN : 1225-049X
 PY : 1994
 LA : KOREAN
 CP : KOREA

 AB : 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 if skull, cervical column, hyoid bone, pharynx, tongue, soft tissue profile were 0.34?0.62mm, 1.02±1.59mm, 1.37±1.78mm, 0.55±1.16mm, 0.51±1.51mm, 0.15?0.36mm each.
 2. The means and standard deviations by photographic subtraction of skull, cervical column, hyoid bone, pharynx, tongue were 0.09±0.35mm, 0.70±0.95mm, 1.22±1.33mm, 0.53±0.86mm, 0.27±0.41mm each.

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