Characterization of the effects of the FineView algorithm for full field digital mammography.

The aim of this study was to characterize the effect of an image processing algorithm (FineView) on both quantitative image quality parameters and the threshold contrast detail response of the GE Senographe DS full-field digital mammography system. The system was characterized using signal transfer property, pre-sampling modulation transfer function (MTF), normalized noise power spectrum (NNPS) and detective quantum efficiency (DQE) of the system. An algorithmic modulation transfer function (MTF(a)) was calculated from images acquired at a reduced detector air kerma (DAK) and with the FineView algorithm enabled. Two sets of beam conditions were used: Mo/Mo/28 kV and Rh/Rh/29 kV, both with 2 mm added Al filtration at the x-ray tube. Images were acquired with and without FineView at four DAK levels from 14 to 378 µGy. The threshold contrast detail response was assessed using the CDMAM contrast-detail test object which was imaged under standard clinical conditions with and without FineView at three DAK levels from 24 to 243 µGy. The images were scored by both human observers and by automated scoring software. Results indicated an improvement of up to 125% at 5 mm⁻¹ in MTF(a) when FineView was activated, particularly at high DAK levels. A corresponding increase of up to 425% at 5 mm⁻¹ was also seen in the NNPS, again with the same DAK dependence. FineView did not influence DQE, an indication that the signal to noise ratio transfer of the system remained unchanged. FineView did not affect the threshold contrast detectability of the system, a result that is consistent with the DQE results.

[1]  Hilde Bosmans,et al.  Comparison of software and human observers in reading images of the CDMAM test object to assess digital mammography systems , 2006, SPIE Medical Imaging.

[2]  James T. Dobbins.  Image Quality Metrics for Digital Systems , 2000 .

[3]  Renato Campanini,et al.  Comparison of different commercial FFDM units by means of physical characterization and contrast-detail analysis. , 2006, Medical physics.

[4]  Stefano Ciatto,et al.  The evolving role of new imaging methods in breast screening. , 2011, Preventive medicine.

[5]  F R Verdun,et al.  A comparison of the performance of digital mammography systems. , 2007, Medical physics.

[6]  Thomas Martin Deserno,et al.  Biomedical Image Processing , 2013 .

[7]  E. Samei,et al.  A method for measuring the presampled MTF of digital radiographic systems using an edge test device. , 1998, Medical physics.

[8]  Hilde Bosmans,et al.  Evaluation of software for reading images of the CDMAM test object to assess digital mammography systems , 2008, SPIE Medical Imaging.

[9]  N W Marshall,et al.  A comparison between objective and subjective image quality measurements for a full field digital mammography system , 2006, Physics in medicine and biology.

[10]  Paola Coan,et al.  X-ray phase-contrast imaging: from pre-clinical applications towards clinics , 2013, Physics in medicine and biology.

[11]  Goran Ristic,et al.  X-ray imaging performance of structured cesium iodide scintillators. , 2004, Medical physics.

[12]  Gyula Faigel,et al.  X-Ray Holography , 1999 .

[13]  Nico Lanconelli,et al.  Physical and psychophysical characterization of a GE senographe DS clinical system , 2007, SPIE Medical Imaging.

[14]  Wei Zhao,et al.  Amorphous selenium flat panel detectors for digital mammography: validation of a NPWE model observer with CDMAM observer performance experiments. , 2006, Medical physics.

[15]  Ann-Katherine Carton,et al.  Validation of MTF measurement for digital mammography quality control. , 2005, Medical physics.

[16]  Cornelis H. Slump,et al.  Automatic Determination Of Image Quality Parameters In Digital Radiographic Imaging Systems , 1989, Medical Imaging.

[17]  R. Aufrichtig,et al.  Comparison of low contrast detectability between a digital amorphous silicon and a screen-film based imaging system for thoracic radiography. , 1999, Medical physics.

[18]  N W Marshall,et al.  Early experience in the use of quantitative image quality measurements for the quality assurance of full field digital mammography x-ray systems , 2007, Physics in medicine and biology.