Optimization of Image Quality and Dose in Digital Mammography.
Nowadays, the optimization in digital mammography is one of the most important challenges in diagnostic radiology. The new digital technology has introduced additional elements to be considered in this scenario. A major goal of mammography is related to the detection of structures on the order of mi...
| Published in: | Journal of Digital Imaging Vol. 30; no. 2; pp. 185 - 197 |
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| Main Authors: | , , , , , |
| Format: | equations & formulas pictorial research tables/charts Journal Article |
| Published: |
Springer Nature
Apr2017
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=121962652&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 121962652 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 08971889 DOQ jtl: Journal of Digital Imaging issn: 08971889 maglogo: N pubinfo: dt: Apr2017 vid: 30 iid: 2 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 121962652 121962652 144044955 121962652 10.1007/s10278-016-9928-3 121962652 ppf: 185 ppct: 12 formats: fmt: @attributes: type: P tig: atl: Optimization of Image Quality and Dose in Digital Mammography. aug: au: Fausto, Agnes Lopes, M. Sousa, M. Furquim, Tânia Mol, Anderson Velasco, Fermin affil: Departamento de Ciências Exatas e Tecnológicas-DCET/CPqCTR , Universidade Estadual de Santa Cruz , Ilhéus Brazil CEP 45662-900 sug: subj: Mammography Radiographic Image Enhancement Image Processing, Computer Assisted Phantoms, Imaging Human Radiation Dosage ab: Nowadays, the optimization in digital mammography is one of the most important challenges in diagnostic radiology. The new digital technology has introduced additional elements to be considered in this scenario. A major goal of mammography is related to the detection of structures on the order of micrometers (μm) and the need to distinguish the different types of tissues, with very close density values. The diagnosis in mammography faces the difficulty that the breast tissues and pathological findings have very close linear attenuation coefficients within the energy range used in mammography. The aim of this study was to develop a methodology for optimizing exposure parameters of digital mammography based on a new Figure of Merit: FOM ≡ (IQF)/AGD, considering the image quality and dose. The study was conducted using the digital mammography Senographe DS/GE, and CDMAM and TORMAM phantoms. The characterization of clinical practice, carried out in the mammography system under study, was performed considering different breast thicknesses, the technical parameters of exposure, and processing options of images used by the equipment's automatic exposure system. The results showed a difference between the values of the optimized parameters and those ones chosen by the automatic system of the mammography unit, specifically for small breast. The optimized exposure parameters showed better results than those obtained by the automatic system of the mammography, for the image quality parameters and its impact on detection of breast structures when analyzed by radiologists. pubtype: Academic Journal doctype: equations & formulas pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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