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X-ray Cone-Beam Breast Computed Tomography: Phantom Studies

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4 Author(s)
Russo, P. ; Lab. of Med. Phys., Univ. di Napoli "Federico II, Naples, Italy ; Mettivier, G. ; Lauria, A. ; Montesi, M.C.

We present the design and preliminary imaging evaluation of a bench-top apparatus for X-ray cone-beam breast computed tomography (CBBCT), assembled for technical evaluation and for laboratory tests of various optimization techniques for CBBCT. The prototype is characterized by the computer control of the X-ray tube (W anode, 35-80 kVp, 0.25 mA, 50  Â¿m focal spot size), CsI:Tl CMOS flat panel detector (12×12 cm2 area, 50 Â¿m pitch, up to 9 fps at 4 ×  4 binning), motorized translation and rotation stages with eight degrees of freedom, and fan-beam or cone-beam backprojection software. First cone-beam tomographic images of two 14-cm diameter hemiellipsoidal PMMA breast phantoms are presented.

Published in:

Nuclear Science, IEEE Transactions on  (Volume:57 ,  Issue: 1 )

Date of Publication:

Feb. 2010

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