牛腰椎放射学研究——牛腰椎x线摄影技术

STUDIES ON RADIOLOGY OF THE BOVINE LUMBAR VERTEBRAE——RADIOGRAPHY OF THE BOVINE LUMBAR VERTEBRAE

为使牛腰椎X线摄影存在的困难得以克服,本文采用人工气腹和直肠暗合的方法进行研究。结果表明:采用人工气腹拍摄腰椎右侧位片,可清楚显示L_1～L_5的主要解剖结构,X线照片质量达优、良级标准者为92％(23/25),而无气腹对照片解剖结构模糊,不能分辨,X线照片质量优、良级标准者为0,差、劣级为100％(25/25)。用直肠暗合拍摄腰荐部背腹位照片,可清晰显示L_5～S_1的主要解剖结构,X线照片质量达优、良级标准者为89.24％(15/17)。结果表明采用人工气腹的方法可克服牛腰椎X线摄影的固有困难,为解决应用普通X线机拍到可供诊断的腰椎X照片提供了现实可能。对气腹的安全性也作了观察与讨论。

In order to overcome the difficulties in radiography of the bovine lumbar vertebrae, studies were carried out using artificial pneumoperitoneum in combination with an intrarectal cassette. The major results obtained were as follows:The main structure of L1-L5 could be visualized clearly in the right lateral radiographs of the lumbar vertebrae after creating artificial pneumoperitontum.Grades of well defined(1)and evident (2) were given to 92%(23/25) of the radiographs.No grade (1)or (2) was present in the control radiographs taken before artificial pneumoperitoneum, and grades of poor (3) and not visualized (4) were given to 100%(25/25)of them.The main structure of the lumbar vertebrae could not be visualized clearly even not at all in the control radiographs. The main, structure of 15-S1 was visualized clearly in the dorsovential radiographs of the lumbosacral region made by means of intrarectal cassette.Grades of well defined(1)and evid-ent(2) were given to 89.24%(15/17)of them.The results showed that the inherent difficulty of bovine lumbar vertebrae radiography could be overcome by means of using artificial pneumoperitoteum, which makes it possible to do a diagnostic radiography of the bovine lumbar vertebrae with the use of ordinary X-ray apparatus.The safety of the pneumoperitotieum was also studied and discussed.