[Phantom study for the detection of simulated lesions in five different digital and one conventional mammography system].

Autor:	Schulz-Wendtland R; Radiologisches Institut, Universität Erlangen-Nürnberg. ruediger.schulz-wendtland@idr.imed.uni-erlangen.de, Hermann KP, Lell M, Böhner C, Wenkel E, Imhoff K, Schmid A, Krug B, Bautz W
Jazyk:	němčina
Zdroj:	RoFo : Fortschritte auf dem Gebiete der Rontgenstrahlen und der Nuklearmedizin [Rofo] 2004 Aug; Vol. 176 (8), pp. 1127-32.
DOI:	10.1055/s-2004-813261
Abstrakt:	Purpose: Experimental phantom study for the detection of simulated lesions with five different digital and one conventional screen-film mammography system. Materials and Methods: Three radiographs were obtained at various configurations of the phantom with one conventional screen-film system (Mammomat 3000 N) (Siemens), five digital systems (high resolution computed radiography system [Fuji/Siemens], one a-Si detector [GE Medical Systems], two a-Se detectors [Siemens; Hologic / Lorad] and one CCD detector [Fischer Imaging]), applying the same exposure parameters. The Wisconsin Mammographic Random Phantom, Model 152 A, was used. Five investigators with different experience in mammography (3 months to more than 4 years) evaluated the 18 randomly selected radiographs. Results: No significant differences were found in the detection rate of simulated breast lesions for conventional screen-film mammography (84.9 %), high resolution computed radiography (86.7 %) and digital mammography with an a-Si detector (89.8 %). Highly significantly better results (p < 0.001) were found with the two a-Se systems (97.3 %) and the CCD system (100 %). Conclusion: Conventional screen-film mammography can be replaced by high resolution computed radiography and digital mammography with a-Si-, a-Se- and CCD-detectors. This has to be confirmed in further clinical studies.
Databáze:	MEDLINE
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