Breast Imaging: 11th International Workshop, IWDM 2012, by Melissa L. Hill, Kela Liu, James G. Mainprize, Ronald B.

By Melissa L. Hill, Kela Liu, James G. Mainprize, Ronald B. Levitin, Rushin Shojaii (auth.), Andrew D. A. Maidment, Predrag R. Bakic, Sara Gavenonis (eds.)

This ebook constitutes the refereed court cases of the eleventh foreign Workshop on electronic Mammography, IWDM 2012, held in Philadelphia, PA, united states, in July 2012. The forty two revised complete papers and fifty eight revised poster papers offered have been rigorously reviewed and chosen from a number of preliminary submissions. The papers are prepared in topical sections on contrast-enhancing imaging, electronic mammography tools, tomosynthesis procedure layout, tomosynthesis - snapshot caliber and dose, scientific tomosynthesis, sensible breast imaging, breast computed tomography, computer-aided prognosis and photograph processing, tomosynthesis reconstruction, and breast density.

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Additional resources for Breast Imaging: 11th International Workshop, IWDM 2012, Philadelphia, PA, USA, July 8-11, 2012. Proceedings

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IWDM 2012, LNCS 7361, pp. 17–23, 2012. -P. Cruz-Bastida et al. acquired prior and after the CM administration. DE focuses on the changes in the linear attenuation coefficient (μ) due to acquisition with different X-ray spectra. In all CEDM modalities the subtracted image is obtained as follows [4] I sub = ln I ( t1 , Q1 ) − α ln I ( t2 , Q2 ) , (1) where I is a mammographic image acquired at time ti with an spectrum of quality Qi. The weighting factor α compensates changes between the images due to acquisition with different beam qualities, so that the pixel values of the non-iodinated tissue becomes zero after the subtraction.

A. R. Bakic, and S. ): IWDM 2012, LNCS 7361, pp. 24–31, 2012. © Springer-Verlag Berlin Heidelberg 2012 Determination of System Geometrical Parameters and Consistency between Scans 25 conditions, with consistent angles of acquisition. Further, precise knowledge of acquisition geometry is critical for accurate image reconstruction. [3–5] A number of calibration techniques have been developed for cone-beam CT and recently adapted for tomosynthesis, which utilize calibration phantoms with specific arrangements of embedded markers.

Iodinebased CM (Optiray® 300, 300 iodine mg per ml) was injected using an injection system, at a constant speed of 4 ml/s. The sequence of CM images allows the interpretation of iodine uptake in terms of dynamical absorption curves. Imaging System Characterization. The implementation of DETm, particularly the calculation of G, requires the relationship between detector output signal and pixel value [7]. For this purpose, PMMA blocks of different thickness were imaged using the same radiological parameters as LE clinical images.

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