Objective assessment of mammography systems. Part II: Implementation.

Hessler, C; Depeursinge, C.; Grecescu, M; Pochon, Y.; Raimondi, S.; Valley, J.-F.

doi:10.1148/radiology.156.1.4001410

Cited by 5 publications

(1 citation statement)

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“…Several test phantoms have been developed for performance assessment in digital mammography, such as the ACR (Barnes and Hendrick, 1994), TRO (MAM) (Cowen and Coleman, 1990), and IQI (Hessler et al , 1985) test phantoms. Images produced by these test phantoms are usually subjectively assessed by a human observer.…”

Section: Introductionmentioning

confidence: 99%

Modeling, validation and application of a mathematical tissue-equivalent breast phantom for linear slot-scanning digital mammography

Hussein¹,

Vaughan²,

Douglas³

2009

Phys. Med. Biol.

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This report presents a mathematical tissue-equivalent breast phantom for linear slot-scanning digital mammography. A recently developed prototype linear slot-scanning digital mammography system was used for model validation; image quality metrics such as image contrast and contrast-to-noise ratio were calculated. The results were in good agreement with values measured using a physical breast-equivalent phantom designed for mammography. The estimated pixel intensity of the mathematical phantom, the analogue-to-digital conversion gain, and the detector additive noise showed good agreement with measured values with correlation of nearly 1. An application of the model, to examine the feasibility of using a monochromatic filter for dose reduction and improvement of image quality in slot-scanning digital mammography, is presented.

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Section: Introductionmentioning

confidence: 99%

Modeling, validation and application of a mathematical tissue-equivalent breast phantom for linear slot-scanning digital mammography

Hussein¹,

Vaughan²,

Douglas³

2009

Phys. Med. Biol.

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Mammography

Gregl¹,

Cigtay²,

Harrington³

1989

Cancer Management in Man

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Influence of anode and filter material on image quality and glandular dose for screen-film mammography

et al. 1991

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The influence of anode and filter materials on the performance (image quality and dose) of a mammography system is investigated. The image quality is evaluated with the image quality index method. A computer simulation has been developed to calculate the physical parameters of the image quality index (contrast, resolution and noise) as well as the mean glandular dose. The calculations take into account the successive steps of the process: x-ray production, filtration, interaction with the test object, anti-scatter grid, interaction with the image detector (screen-film system). An excellent correlation is obtained between the results predicted by the model and those of experimental measurements, suggesting that the model may be used for the prediction of the performance of mammographic equipment. The experimental conclusions are confirmed: the use of a tungsten anode with a rhodium filter allows a dose reduction without a significant degradation of image quality. The computer program can also be used to simulate the influence of factors which are difficult to combine in practice, e.g., various anode and filter materials, monoenergetic x-rays, etc.

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Objective assessment of mammography systems. Part II: Implementation.

Cited by 5 publications

References 0 publications

Modeling, validation and application of a mathematical tissue-equivalent breast phantom for linear slot-scanning digital mammography

Modeling, validation and application of a mathematical tissue-equivalent breast phantom for linear slot-scanning digital mammography

Mammography

Influence of anode and filter material on image quality and glandular dose for screen-film mammography

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