title: [The value of the AMBER system in demonstrating intrathoracic space-occupying lesions. A comparative ROC study of the AMBER and conventional technics for postero-anterior views of the thorax. Advanced Multiple Beam Equalization Radiography].
abstract: Since October 1991 the AMBER technique has been used for the diagnosis of chest diseases in about 4,000 patients. The ability of this technique, compared with conventional methods, for demonstrating intrathoracic masses on p.a. views has been assessed. Amongst the patients there were 43 with coin lesions, 18 with hilar and 33 with mediastinal masses. ROC analysis showed the AMBER technique to be superior in demonstrating coin lesions (AMBER 0.92, conventional 0.85) and mediastinal masses (AMBER 0.89, conventional 0.73). There was a small, statistically not significant, disadvantage in the AMBER technique for demonstrating hilar masses (AMBER 0.80, conventional 0.84).
authors.affiliation: Abteilung für Radiologische Diagnostik, Universität Tübingen.
authors.forename: M
authors.initials: M
authors.lastname: Bitzer
authors.forename: M
authors.initials: M
authors.lastname: Strayle
authors.forename: C
authors.initials: C
authors.lastname: Schäfer
authors.forename: E
authors.initials: E
authors.lastname: Walter
authors.forename: H J
authors.initials: HJ
authors.lastname: Brambs
authors.forename: C D
authors.initials: CD
authors.lastname: Claussen
mesh_terms: D016009:Chi-Square Distribution; D005069:Evaluation Studies as Topic; D005189:False Positive Reactions; D006801:Humans; D008479:Mediastinal Neoplasms / Q000000981:diagnostic imaging / Q000453:epidemiology; D012372:ROC Curve; D013902:Radiography, Thoracic / Q000295:instrumentation / Q000379:methods* / Q000706:statistics & numerical data; D012680:Sensitivity and Specificity; D013899:Thoracic Neoplasms / Q000000981:diagnostic imaging* / Q000453:epidemiology; D014963:X-Ray Intensifying Screens
vernacular_title: Stellenwert des AMBER-Systems beim Nachweis von intrathorakalen Raumforderungen. Vergleichende ROC-Studie der AMBER- und der konventionellen Technik bei Thorax-p.a.-Ubersichtsaufnahmen.