Horton J C, Langer P D, Turner G E
Department of Ophthalmology, University of California, San Francisco 94143-0730.
J Clin Neuroophthalmol. 1993 Mar;13(1):50-3.
Free air within the cavernous sinus was discovered incidentally on a computed tomographic (CT) scan. We suggest that air bubbles were introduced inadvertently when contrast material was injected just prior to CT scanning. On a repeat CT scan 16 days later, the air had disappeared.
在计算机断层扫描（CT）中偶然发现海绵窦内有游离气体。我们认为，在CT扫描前注射造影剂时无意中引入了气泡。16天后的重复CT扫描显示，气体已消失。
