作者
Hilde Bosmans, An De Hauwere, Kim Lemmens, Federica Zanca, Hubert Thierens, Chantal Van Ongeval, Koen Van Herck, Andre Van Steen, Patrick Martens, Luc Bleyen, Gretel Vande Putte, Eliane Kellen, Griet Mortier, Erik Van Limbergen
发表日期
2013/10
期刊
European radiology
卷号
23
页码范围
2891-2898
出版商
Springer Berlin Heidelberg
简介
Objectives
To compare technical and clinical screening performance parameters between computed radiography (CR) and direct digital radiography (DR) systems.
Methods
The number of women screened with CR was 73,008 and with DR 116,945. Technical and patient dose survey data of 25 CR and 37 DR systems were available. Technical performance was expressed by threshold thickness values at the mean glandular dose (MGD) level of routine practice. Clinical indicators included recall rate (RR), cancer detection rate (CDR), percentage of ductal carcinoma in situ (DCIS), percentage of cancers with T-scores smaller than 1 cm and positive predictive value (PPV).
Results
Contrast threshold values for the 0.1-mm gold disk were 1.44 μm (SD 0.13 μm) for CR and 1.20 μm (SD 0.13 μm for DR). MGD was 2.16 mGy …
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H Bosmans, A De Hauwere, K Lemmens, F Zanca… - European radiology, 2013