良性支气管狭窄是包括结节病、结核和淀粉样变在内的很多疾病的共有的表现。为了解螺旋CT对确定叶、段支气管良性狭窄的价值,作者用薄层容积CT检查了5例已知或怀疑叶和/或段良性支气管狭窄的病人(结节病4例,淀粉样变性1例)。所有病人在行螺旋CT前1～13年均曾行支气管镜检,以及初步的高分辨CT检查(1.5mm层厚,10mm间隔)。螺旋CT扫描层厚2～3mm,重建指数1～2mm,螺距1.25～1.5。检查的组织容积在首尾方向各5.8～ Benign bronchial stenosis is a common manifestation of many diseases, including sarcoidosis, tuberculosis and amyloidosis. To understand the value of spiral computed tomography (CT) in the determination of benign and malignant lobes and segments, we examined five patients with benign or suspected benign bronchial stenosis (4 in sarcoidosis, amyloidosis 1 example). All patients underwent bronchoscopy 1 to 13 years before spiral CT, as well as a preliminary high-resolution CT examination (1.5 mm layer thickness at 10 mm intervals). Spiral CT scan thickness 2 ~ 3mm, reconstruction index 1 ~ 2mm, pitch 1.25 ~ 1.5. Check the volume of tissue in the end of the direction of 5.8 ~