Abstract
A new, high resolution 40x30cm2 area CsI-TFT based CT imager having 127μm pixel pitch was developed for fully-3D breast CT imaging as part of a SPECT-CT system. The imager has two narrow edges suited for pendant breast CT imaging close to the chest wall. The scintillator thickness of 600 microns provides >90% absorption for the 36keV mean x-ray energy of the cone beam source. The 2D MTF is ~7.5% at the 3.9 lp/mm Nyquist frequency. The imager has excellent linearity over the full dynamic range. The imager is mounted on the CT device and initial tomographic imaging of geometric and breast phantoms demonstrate the reliable and robust imaging capabilities of this device for breast CT.
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References
Madhav, P., Crotty, D.J., McKinley, R.L., Tornai, M.P.: Initial Development of a Dual-Modality SPECT-CT System for Dedicated Mammotomography. In: IEEE Nuclear Science Symposium & Medical Imaging Conference Record, vol. 4, pp. 2382–2386 (2006)
Tornai, M.P., McKinley, R.L., Brzymialkiewicz, C.N., et al.: Design and development of a fully-3D dedicated xray computed mammotomography system. In: Proc. SPIE: Phys. of Med. Imag., vol. 5745(1), pp. 189–197 (2005)
International Standard, IEC 62220-1 (2003)
Roos, P.G., Colbeth, R.E., Mollov, I., Munro, P., Pavkovich, J., Seppi, E.J., Shapiro, E.G., Tognina, C.A., Virshup, G.F., Yu, J.M., Zentai, G.: Multiple-gain-ranging readout method to extend the dynamic range of amorphous silicon flat-panel imagers. In: Proc. SPIE: Phys. of Med. Imag., vol. 5368, p. 139 (2004)
Samei, E., Flynn, M.J.: A method for measuring the presampled MTF of digital radiographic systems using an edge test device. Med. Phys. 25(1), 102–113 (1998)
Greer, P.B., van Doom, T.: Evaluation of an algorithm for the assessment of the MTF using an edge method. Med. Phys. 27(9), 2048–2059 (2000)
Madhav, P., McKinley, R.L., Samei, E., Bowsher, J.E., Tornai, M.P.: A novel method to characterize the MTF in 3D for computed mammotomography. In: Proc. SPIE: Phys. of Med. Imag., vol. 6142 (2006)
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© 2012 Springer-Verlag Berlin Heidelberg
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Shah, J.P. et al. (2012). Initial Evaluation of a Newly Developed High Resolution CT Imager for Dedicated Breast CT. In: Maidment, A.D.A., Bakic, P.R., Gavenonis, S. (eds) Breast Imaging. IWDM 2012. Lecture Notes in Computer Science, vol 7361. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-31271-7_55
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DOI: https://doi.org/10.1007/978-3-642-31271-7_55
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-31270-0
Online ISBN: 978-3-642-31271-7
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