The Application of Three-Dimensional Computed Tomography in Skeletal Trauma: A Preliminary Report

三度空間電腦斷層攝影於骨骼外傷的應用－初報

藍顥章(Howard Haw-Chung Lan) ； 李三剛(San-Kan Lee) ； 黃樹棍(Shu-Kun Huang)

《中華放射線醫學雜誌》 18卷4期 (1993/12) Pp. 313-319

摘要

大多數的骨折可由傳統X光或電腦斷層掃描偵測出來。但複雜的骨折或骨折位於複雜的解剖位置，例如，頭臉部、肩關節、脊椎、或骨盆等，則不易理解或偵測，因此不易產生三度空間立體的概念。我們利用三度空間電腦斷層檢查15位具複雜性骨折或病灶位於複雜解剖位置的病人，結果效果相當良好，三度空間立體概念很容易由三度空間電腦斷層看出來，且可幫助手術前的評估。但位於顱骨中央部位的骨折則不易被偵測到，同時有些很薄的骨頭易被誤為骨折。因此，我們建議在判讀三度空間電腦斷層時，必須配合二度空間電腦斷層，以減少錯誤。如此，三度空間電腦斷層可以是評估複雜性骨折或位於複雜解剖位置之骨折的良好工具。

關鍵字

三度空間電腦斷層攝影 ； 骨骼電腦斷層 ； 骨骼外傷 ； 骨折

並列摘要

Most bony fractures can be identified with plain radiography, tomography or conventional computed tomography (CCT). Bony fractures in areas with complex anatomy, however, are hard to be visualized. Thus preoperative planning is often difficult. With application of three-dimensional computed tomography (3-DCT), the bony lesions in 15 patients including 13 traumatic bony fractures, I vertebral metastasis with pathological fracture, and 1 traumatic temporomandibular joint (TMJ) dislocation could be clearly identified. However, bony fractures in the central portion of the craniofacial bones and traumatic TMJ dislocation were missed. In addition, thin or small bones and deep bone pits can produce pseudoforamina or pseudofractures on 3-DCT.
We concluded that 3-DCT can be a good imaging modality, in conjunction with CCT, in the evaluation of bony fractures, especially in the areas with complex anatomy, i.e. facial bones, spine, shoulders and pelvis, etc.

並列關鍵字

CT, three dimensional ； bones, fractures ； bones, CT ； bones, injuries