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传统X线设备普及,可以显示骨骼改变,约对30%的眼眶肿瘤有诊断意义,在目前仍然是研究眼眶病的重要手段。但这一检查方法分辨力很低,邻近两种结构的密度差异超过20%时才能区别开来,而眶内软组织的密度差只有6%,因此软组织结构,包括软组织肿瘤不能被传统X线检查法显示出来。这一检查法的缺点虽然在一定程度上被50年代兴起的眼眶造影术和眼眶血管造影术所弥补,这些方法又属有疼检查法,且给病人带来一定的组织损伤;对于肿瘤也只能显示其轮廓,内部结构仍然无法辨认,至70年代已
The popularity of traditional X-ray equipment, can show bone changes, about 30% of the orbital tumors have diagnostic significance, is still an important means of studying orbital disease. However, the resolution of this test method is very low. When the density difference between adjacent two structures exceeds 20%, the difference between the density of orbital soft tissue is only 6%. Therefore, soft tissue structures, including soft tissue tumors, can not be examined by conventional X-ray Law is displayed. Although the shortcomings of this examination method to some extent by the rise of the 50’s orbital angiography and orbital angiography to remedy, these methods are also a pain examination, and to bring some of the patients with tissue damage; only for the tumor Can show its outline, the internal structure is still unrecognizable, up to the 70s