Validation of a Custom-made Software for DQE Assessment in Mammography Digital Detectors

Journal Article · Tue Dec 07 00:00:00 EST 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3531603· OSTI ID:21506976

Ayala-Dominguez, L; Perez-Ponce, H; Brandan, M E ^[1]

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1. Instituto de Fisica, Universidad Nacional Autonoma de Mexico, A.P. 20-364, 01000 DF (Mexico)

This works presents the validation of a custom-made software, designed and developed in Matlab, intended for routine evaluation of detective quantum efficiency DQE, according to algorithms described in the IEC 62220-1-2 standard. DQE, normalized noise power spectrum NNPS and pre-sampling modulation transfer function MTF were calculated from RAW images from a GE Senographe DS (FineView disabled) and a Siemens Novation system. Calculated MTF is in close agreement with results obtained with alternative codes: MTF lowbar tool (Maidment), ImageJ plug-in (Perez-Ponce) and MIQuaELa (Ayala). Overall agreement better than {approx_equal}90% was found in MTF; the largest differences were observed at frequencies close to the Nyquist limit. For the measurement of NNPS and DQE, agreement is similar to that obtained in the MTF. These results suggest that the developed software can be used with confidence for image quality assessment.

• OSTI ID: 21506976
• Journal Information: AIP Conference Proceedings, Vol. 1310, Issue 1; Conference: 11. Mexican symposium on medical physics, Mexico City (Mexico), 19-22 Mar 2010; Other Information: DOI: 10.1063/1.3531603; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

97 MATHEMATICAL METHODS AND COMPUTING
ALGORITHMS
BIOMEDICAL RADIOGRAPHY
CHARGES
FOURIER TRANSFORMATION
MAMMARY GLANDS
MODULATION
NOISE
NUCLEAR INDUSTRY
QUANTUM EFFICIENCY
SAMPLING
SPECTRA
TRANSFER FUNCTIONS
VALIDATION
BODY
DIAGNOSTIC TECHNIQUES
EFFICIENCY
FUNCTIONS
GLANDS
INDUSTRY
INTEGRAL TRANSFORMATIONS
MATHEMATICAL LOGIC
MEDICINE
NUCLEAR MEDICINE
ORGANS
RADIOLOGY
TESTING
TRANSFORMATIONS