眼窩腫瘍に対するfrontal approach （trans cranial approach）における3次元CTの意義

Three-dimensional CT scan prior to orbital tumor removal by frontal approach

　眼窩腫瘍9例に対し，開頭法（frontal approach）による摘出術を施行し良好な結果を得たが，その術前検査として3次元CT scanが有効であった。眼窩腫瘍については同検査法が術式の選択を始めとして，開頭法を術式と決定した際には，特に重要な検査法と考えた。

Nine cases of orbital tumor were examined by three-dimensional CT scan. All cases were then operated through the trans-frontal approach. The presurgical CT scan findings were well in accord with the findings during surgery.

The three-dimensional CT scan examinations included sagittal, coronal and axial tomographic sections. This technique facilitated detection of the lesion and its extent.

This technique is recommended as a valuable presurgical procedure when planning removal of orbital tumors through the trans-frontal approach.