title: Immersion technique in soft tissue radiography of the hands.
abstract: Soft tissue radiography of hands using the technique of mammary radiography and immersion in a 2.5 cm layer of 1:1 water-ethanol solution is evaluated. Using immersion the average background density decreases with a factor of about 2.5:1, with little deterioration in resolution (MTF). The immersion procedure makes the demonstration and evaluation of soft tissue swelling and periarticular oedema easier.
mesh_terms: D001172:Arthritis, Rheumatoid / Q000000981:diagnostic imaging; D000431:Ethanol; D006225:Hand / Q000000981:diagnostic imaging*; D006801:Humans; D007101:Immersion; D008327:Mammography; D008722:Methods; D013679:Technology, Radiologic; D014867:Water
chemical_list: D014867:Water; D000431:Ethanol