[Selection of parameters for multi-objective frequency processing in CR mammography: visual evaluation of mammographic phantom images]
| Autor: | Masahiro Hashida, Kumi Ishihara, Taizo Sanada, Etsuko Ishida, Hideyuki Iwanaga |
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| Rok vydání: | 2005 |
| Předmět: |
Observer Variation
medicine.diagnostic_test business.industry Phantoms Imaging media_common.quotation_subject Breast lesion Image processing General Medicine Imaging phantom Mockup medicine Image Processing Computer-Assisted Contrast (vision) Mammography Humans Computer vision Artificial intelligence Computed radiography business Observer variation Biomedical engineering Mathematics media_common |
| Zdroj: | Nihon Hoshasen Gijutsu Gakkai zasshi. 61(3) |
| ISSN: | 0369-4305 |
| Popis: | The multi-objective frequency processing installed in the FCR5000R (Fuji Film Medical) is superior to the conventional processing used in the FCR9000 (Fuji Film Medical) in evaluating frequency processing. A suitable combination of parameters for multi-frequency-processing in computed radiography (CR) mammography was evaluated. The paired-comparison method using phantom images was performed for the visual evaluation. Results showed that the evaluation score of mass and fiber lesions depended on the multi-frequency balance type (MRB) parameter, and the low-frequency-cycle emphasizing parameter had the highest score. In contrast, the score of microcalcifications depended on the degree of multi-frequency enhancement (MRE). The most suitable parameters for the multi-frequency processing of every size and type of breast lesion were not obtained. However, MRB=A, MRT=p, and MRE=1.0 can be recommend for CR mammography. |
| Databáze: | OpenAIRE |
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