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10 results on '"Golosio, Bruno"'

1. Lesion visibility in phase-contrast breast CT: comparison with histological images

Author

Longo, Renata, primary, Arfelli, Fulvia, additional, Donato, Sandro, additional, Bonazza, Deborah, additional, Brombal, Luca, additional, Contillo, Adriano, additional, Cova, Maria A., additional, Delogu, Pasquale, additional, Di Trapani, Vittorio, additional, Golosio, Bruno, additional, Mettivier, Giovanni, additional, Oliva, Piernicola, additional, Rigon, Luigi, additional, Taibi, Angelo, additional, Tonutti, Maura, additional, Tromba, Giuliana, additional, and Zanconati, Fabrizio, additional

Published
2020
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2. Monochromatic breast CT: absorption and phase-retrieved images

Author

Brombal, Luca, primary, Golosio, Bruno, primary, Arfelli, Fulvia, primary, Contillo, Adriano, primary, Delogu, Pasquale, primary, Donato, Sandro, primary, Mettivier, Giovanni, primary, Oliva, Piernicola, primary, Rigon, Luigi, primary, Taibi, Angelo, primary, Tromba, Giuliana, primary, Zanconati, Fabrizio, primary, Longo, Renata, primary, and Bonazza, Deborah, primary

Published
2018
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4. Diagnostic performance of radiologists with and without different CAD systems for mammography

Author

Lauria, Adele, primary, Fantacci, Maria E., additional, Bottigli, Ubaldo, additional, Delogu, Pasquale, additional, Fauci, Francesco, additional, Golosio, Bruno, additional, Indovina, Pietro L., additional, Masala, Giovanni L., additional, Oliva, Piernicola, additional, Palmiero, Rosa, additional, Raso, Giuseppe, additional, Stumbo, Simone, additional, and Tangaro, Sabina, additional

Published
2003
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5. Search of microcalcification clusters with the CALMA CAD station

Author

Fantacci, Maria E., primary, Bottigli, Ubaldo, additional, Delogu, Pasquale, additional, Fauci, Francesco, additional, Golosio, Bruno, additional, Lauria, Adele, additional, Palmiero, Rosa, additional, Raso, Giuseppe, additional, Stumbo, Simone, additional, and Tangaro, Sabina, additional

Published
2002
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10. Monochromatic breast CT: Absorption and phase-retrieved images

Author

Bruno Golosio, R. Longo, Angelo Taibi, Fulvia Arfelli, Piernicola Oliva, Giovanni Mettivier, Fabrizio Zanconati, Pasquale Delogu, Deborah Bonazza, Luca Brombal, Sandro Donato, Giuliana Tromba, Adriano Contillo, L. Rigon, Brombal, Luca, Golosio, Bruno, Arfelli, Fulvia, Bonazza, Deborah, Contillo, Adriano, Delogu, Pasquale, Donato, Sandro, Mettivier, Giovanni, Oliva, Piernicola, Rigon, Luigi, Taibi, Angelo, Tromba, Giuliana, Zanconati, Fabrizio, Longo, Renata, and Joseph Y. Lo, Taly Gilat Schmidt, Guang-Hong Chen

Subjects
Radiology, Nuclear Medicine and Imaging, Atomic and Molecular Physics, and Optic, Materials science, Breast CT, Monochromatic CT, Phase contrast, Phase retrieval, Photon counting detector, Synchrotron radiation, Socio-culturale, Context (language use), 030218 nuclear medicine & medical imaging, law.invention, 03 medical and health sciences, 0302 clinical medicine, Optics, law, Breast-CT, phase-imaging, synchrotron radiation, phase-retrieval, medicine, Image resolution, Pixel, business.industry, Electronic, Optical and Magnetic Material, Phase-contrast imaging, Biomaterial, Synchrotron, 030220 oncology & carcinogenesis, Microcalcification, Monochromatic color, medicine.symptom, business
Abstract

A program devoted to perform the first in-vivo monochromatic breast computed tomography (BCT) is ongoing at the Elettra Synchrotron Facility. Since the synchrotron radiation provides high energy resolution and spatial coherence, phase-contrast (PhC) imaging techniques can be used. The latest high resolution BCT acquisitions of breast specimens, obtained with the propagation-based PhC approach, are herein presented as part of a wider framework, devoted to the optimization of acquisition and reconstruction parameters towards the clinical exam. Images are acquired with a state-of-the-art dead-time-free single-photon-counting CdTe detector with a 60 µm pixel size. The samples are imaged at 32 and 38 keV in continuous rotating mode, delivering 5-20 mGy of mean glandular dose (MGD). Contrast-to-noise ratio (CNR) and spatial resolution performances are evaluated for both absorption and phase-retrieved images considering tumor/adipose tissue interfaces. We discuss two different phase-retrieval approaches, showing that a remarkable CNR increase (from 0.5 to 3.6) can be obtained without a significant loss in spatial resolution. It is shown that, even if the non-phase-retrieved image has a poorer CNR, it is useful for evaluating the spiculation of a microcalcification: in this context, absorption and phase-retrieved images have to be regarded as complementary information. Furthermore, the first full volume acquisition of a mastectomy, with a 9 cm diameter and 3 cm height, is reported. This investigation on surgical specimens indicates that monochromatic BCT with synchrotron radiation in terms of CNR, spatial resolution, scan duration and scan volume is feasible.

Published
2018

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