[Imaging properties of digital image-intensifier radiography compared to the conventional x-ray technic for chest pictures].
Projection properties of a digital fluorographic system for chest examinations are examined using varying test phantoms. A maximal geometric distortion of +14% between the centre and the periphery of the image intensifier and a maximal spatial resolution of 2.6 LP/mm is found. Contrast detail diagrams are used to show the combination of spatial and contrast resolution of the system. Compared with diagrams for conventional radiographic systems there is a significant loss of resolution.
Dölken
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Institut für Röntgendiagnostik, Universität Würzburg.
Krahe
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Landwehr
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Lackner
K
K
D000293:Adolescent; D000328:Adult; D000703:Analog-Digital Conversion; D005069:Evaluation Studies as Topic; D006801:Humans; D008961:Models, Structural; D011856:Radiographic Image Enhancement / Q000295:instrumentation / Q000379:methods*; D011857:Radiographic Image Interpretation, Computer-Assisted; D013902:Radiography, Thoracic / Q000295:instrumentation / Q000379:methods*
Abbildungseigenschaften der Digitalen BV-Radiographie im Vergleich zur konventionellen Röntgentechnik für Thoraxaufnahmen.