腰椎摄影传统方法:患者仰卧,双下肢弯曲,中心线对准L3、4腰椎平面(脐部高度)垂直射入胶片中心。将12×15in(1in=0.0254m)的X线胶片改裁为6×15in的胶片置于暗盒中部,依次拍摄腰椎正位和侧位片。如用一张未改裁的12×15in胶片拍摄,须将暗盒放入托盘中,暗盒上面以6×15in铅皮分左 Traditional methods of lumbar photography: The patient supine, both lower limbs bent, the center line alignment L3, lumbar plane (umbilical height) into the vertical center of the film. The 12 × 15in (1in = 0.0254m) X-ray film reworked into 6 × 15in film placed in the middle of the cassette, followed by shooting the lumbar anteroposterior and lateral radiographs. If using an uncut 12 × 15in filming, the cassette must be placed in the tray, the cassette above 6 × 15in lead