Kelly C A, Kotre C J, Ward C, Hendrick D J, Walters E H
Department of Medicine, Newcastle General Hospital.
Thorax. 1987 Aug;42(8):624-8. doi: 10.1136/thx.42.8.624.
A digital subtraction imaging technique was used to visualise directly the anatomical distribution of 3 X 60 ml aliquots of saline containing a low concentration of radio-opaque dye, introduced sequentially into a segment of the middle lobe. It was possible to estimate the relative movement of fluid within the segment during the sequential aspiration of each of these aliquots. The first 60 ml aliquot introduced stayed close to the bronchoscope and probably sampled only the proximal airways. With the introduction of cumulative volumes of 120 ml or more, the fluid filled the segment more evenly. Aspiration then moved fluid back from the periphery, implying that the aspirate had also lavaged both distal airways and alveoli.
采用数字减影成像技术直接观察依次注入中叶某一段的3份60毫升含低浓度不透X线染料的生理盐水的解剖分布情况。在依次抽吸每份生理盐水时，能够估算该段内液体的相对移动情况。注入的第一份60毫升生理盐水靠近支气管镜，可能仅对近端气道进行了采样。当累计注入量达到120毫升或更多时，液体更均匀地充满该段。随后抽吸将液体从周边移回，这意味着抽吸液也对远端气道和肺泡进行了灌洗。
