Dedicated scanner for laboratory investigations on cone-beam CT/SPECT imaging of the breast

Giovanni Mettivier, Paolo Russo, Mario Cesarelli, Roberto Ospizio, Giuseppe Passeggio, Lorenzo Roscilli, Giuseppe Pontoriere, Raffaele Rocco

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

We describe the design, realization and basic tests of a prototype Cone-Beam Breast Computed Tomography (CBBCT) scanner, combined with a SPECT head consisting of a compact pinhole gamma camera based on a photon counting CdTe hybrid pixel detector. The instrument features a 40 μm focal spot X-ray tube, a 50 μm pitch flat panel detector and a 1-mm-thick, 55 μm pitch CdTe pixel detector. Preliminary imaging tests of the separate CT and gamma-ray units are presented showing a resolution in CT of 3.2 mm-1 at a radial distance of 50 mm from the rotation axis and that the 5 and 8 mm hot masses (99mTc labeled with a 15:1 activity ratio with respect to the background) can be detected in planar gamma-ray imaging with a contrast-to-noise ratio of about 4.

Original languageEnglish
Pages (from-to)350-356
Number of pages7
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume629
Issue number1
DOIs
Publication statusPublished - Feb 11 2011

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breast
scanners
Cones
cones
Detectors
Imaging techniques
Gamma rays
detectors
Pixels
pixels
gamma rays
X ray tubes
pinholes
Tomography
counting
Photons
tomography
Cameras
cameras
prototypes

Keywords

  • Breast computed tomographySPECT/CT multimodality imaging

ASJC Scopus subject areas

  • Instrumentation
  • Nuclear and High Energy Physics

Cite this

Dedicated scanner for laboratory investigations on cone-beam CT/SPECT imaging of the breast. / Mettivier, Giovanni; Russo, Paolo; Cesarelli, Mario; Ospizio, Roberto; Passeggio, Giuseppe; Roscilli, Lorenzo; Pontoriere, Giuseppe; Rocco, Raffaele.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 629, No. 1, 11.02.2011, p. 350-356.

Research output: Contribution to journalArticle

Mettivier, Giovanni ; Russo, Paolo ; Cesarelli, Mario ; Ospizio, Roberto ; Passeggio, Giuseppe ; Roscilli, Lorenzo ; Pontoriere, Giuseppe ; Rocco, Raffaele. / Dedicated scanner for laboratory investigations on cone-beam CT/SPECT imaging of the breast. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2011 ; Vol. 629, No. 1. pp. 350-356.
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