Image Quality in Mammography: Physical and Technical Limitations

Nielsen, B

doi:10.1007/978-3-642-82964-2_1

Image Quality in Mammography: Physical and Technical Limitations

B Nielsen

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1993

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Comparison of Image Quality and Mean Absorbed Dose to the Breast for Two Mammographic Films

Persliden¹,

Fransson²,

Viták³

et al. 1993

Acta Radiol

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A film intended for mammography (Kodak SO 155 MRH-l) was tested and compared to one (Kodak SO 177 Ortho M) used earlier.Both films including the cassette could resolve 20 Ip/mm. For a processing time of 90 s the new film gave the same overall image quality and irradiation dose to the breast as the old system. If, instead, the processing time was increased to 150 s, a 43% reduction in kerma could be attained with the new film. With a developing temperature of 36°C and 150 s processing time, the noise is clinically acceptable. A nonparametric test showed no significant difference between the 2 films on the 0.01 level. At an X-ray tube potential difference of25 kY,the mean absorbed dose to a 4.5-cm-thick breast was reduced from 1.7 mGy with the old combination to 1.0 mGy with the new one. The measurements were made with a moving grid.

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Comparison of Image Quality and Mean Absorbed Dose to the Breast for Two Mammographic Films

Persliden¹,

Fransson²,

Viták³

et al. 1993

Acta Radiol

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show abstract

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Image Quality in Mammography: Physical and Technical Limitations

Cited by 1 publication

References 26 publications

Comparison of Image Quality and Mean Absorbed Dose to the Breast for Two Mammographic Films

Comparison of Image Quality and Mean Absorbed Dose to the Breast for Two Mammographic Films

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