title: Photographic techniques for retrieving echocardiographic images from substandard recordings.
abstract: A technique is described for photographing damaged echocardiograms with a lithographic film. This is a high contrast film that reproduces either black or white, without intermediate gray tones, depending on exposure time. Standard photographic manipulations were used to improve the quality of the final print.
mesh_terms: D003308:Copying Processes / Q000379:methods*; D004452:Echocardiography / Q000592:standards*; D010781:Photography / Q000379:methods*; D011786:Quality Control