Subtraction法을 利用한 顎關節 X-線寫眞 判讀에 關한 硏究
THE STUDY OF THE INTERPRETATION OF THE TMJ RADIOGRAPHY USING SUBTRACTION TECHNIQUE
치과방사선 1987년 17권 1호 p.175 ~ 183
소속 상세정보
나춘화(羅椿和)/Choon-Wha Na
유동수(劉東洙)/Dong-Soo Yoo
KMID : 0378219870170010175
Abstract
顎關節疾患者 32名(명)에게서 採得된 50例의 顎關節 測斜位X-線寫眞像과 그 寫眞을 利用
한 Subtraction法에 依한 像을 比較 檢討하여 다음과 같은 結論을 얻었다.
1) Subtraction film 上에서 開口時의 顆頭는 黑白反轉像으로, 閉口時의 顆頭는 再反轉된
通常像으로 同時에 觀察할 수 있어 顎關節X-線寫眞判讀을 容易하게 하였다.
2) Subtraction法을 利用한 50例中 46例에서는 顎關節側斜位 X-線寫眞과 X-線樣狀이 같
았으나, 4例(이中 3例는 骨表面의 粗造性 및 局限된X-線透過像이고 1例는 海綿骨部의 骨硬
化像이다) 에서는 追加的인 病變을 發見하여 判讀力의 向上을 期待할 수 있다.
#초록#
The purpose of this study is to know the value of the photographic subtraction
technic in the transcranial oblique lateral projection of the TMJ.
The author examined the transcranial oblique lateral projection radiographs which
comprise 50 cases of 32 persons, compared the transcranial oblique lateral projection
films and those subtraction films.
The following results were obtained.
1) The condyle at closed jaw position had showed a reversed tone image, but the
condyle at the opening position had showed a re-reversed ordinary image. Both condyles
had showed one subtraction film because radiographic interpretation of TMJ was easy.
2) On 50 cases of subtraction films, 46 cases had showed same radiographic images
compared with trascranial oblique lateral projection films. Four cases (3 cases of erosion,
1 cases of sclerosis) had showed additional changes of images so that capability of
interpretation was improved.
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