Roll-film changer for whole-limb angiography: a trial production and its clinical application.
We have developed an automatic roll-film changer (25 X 90 cm) for whole limb angiography that is equipped with a pair of graduated intensifying screens and a stationary grid. Satisfactory intermittent closure of the screens is achieved by mechanical means. The filming program can be set at one exposure every one to five seconds. A total of 20 serial angiograms can be obtained. In both experimental studies and clinical series, the roll-film changer has proved to be a valuable asset in angiographic evaluation of occlusive arterial diseases of the lower extremities.
D000792:Angiography / Q000295:instrumentation*; D005121:Extremities / Q000098:blood supply / Q000000981:diagnostic imaging*; D006801:Humans