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Avanzo M, Dassie A, Chandra Acharya P, Chiovati P, Pirrone G, Avigo C, Barresi L, Dang Quoc S, Fiagbedzi E, Navarria F, Palazzari E, Bertola G, De Paoli A, Stancanello J, Sartor G. Electron radiotherapy (IOERT) for applications outside of the breast: Dosimetry and influence of tissue inhomogeneities. Phys Med 2020; 69:82-89. [DOI: 10.1016/j.ejmp.2019.12.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 11/17/2019] [Accepted: 12/04/2019] [Indexed: 12/12/2022] Open
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Avanzo M, Pirrone G, Avigo C, Fanetti G, Stancanello J, De Paoli A, Elisa P, Drigo A, Chiovati P, Dassie A, Borsatti E, Baresic T, Franchin G, Sartor G. EP-1905 CT /PET based dosiomics and radiomics model predicts local control of nasopharyngeal carcinoma. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)32325-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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3
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Fanetti G, Avanzo M, Pirrone G, Avigo C, Stancanello J, De Paoli A, Palazzari E, Drigo A, Gobitti C, Vaccher E, Baresic T, Bampo C, Borsatti E, Sartor G, Franchin G. PO-122 CT /PET based dosiomics and radiomics model predicts local control of nasopharyngeal carcinoma. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)30288-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Di Lascio N, Avigo C, Salvati A, Martini N, Ragucci M, Monti S, Prinster A, Chiappino D, Mancini M, D'Elia D, Ghiadoni L, Bonino F, Brunetto MR, Faita F. Steato-Score: Non-Invasive Quantitative Assessment of Liver Fat by Ultrasound Imaging. Ultrasound Med Biol 2018; 44:1585-1596. [PMID: 29735312 DOI: 10.1016/j.ultrasmedbio.2018.03.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Revised: 03/05/2018] [Accepted: 03/16/2018] [Indexed: 06/08/2023]
Abstract
Non-alcoholic fatty liver disease is becoming a global epidemic. The aim of this study was to develop a system for assessing liver fat content based on ultrasound images. Magnetic resonance spectroscopy measurements were obtained in 61 patients and the controlled attenuation parameter in 54. Ultrasound images were acquired for all 115 participants and used to calculate the hepatic/renal ratio, hepatic/portal vein ratio, attenuation rate, diaphragm visualization and portal vein wall visualization. The Steato-score was obtained by combining these five parameters. Magnetic resonance spectroscopy measurements were significantly correlated with hepatic/renal ratio, hepatic/portal vein ratio, attenuation rate, diaphragm visualization and portal vein wall visualization; Steato-score was dependent on hepatic/renal ratio, attenuation rate and diaphragm visualization. Area under the receiver operating characteristic curve was equal to 0.98, with 89% sensitivity and 94% specificity. Controlled attenuation parameter values were significantly correlated with hepatic/renal ratio, attenuation rate, diaphragm visualization and Steato-score; the area under the curve was 0.79. This system could be a valid alternative as a non-invasive, simple and inexpensive assessment of intrahepatic fat.
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Affiliation(s)
- Nicole Di Lascio
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa, Italy; Institute of Clinical Physiology, National Research Council, Pisa, Italy.
| | - Cinzia Avigo
- Institute of Clinical Physiology, National Research Council, Pisa, Italy
| | - Antonio Salvati
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy; Hepatology Unit and Laboratory of Molecular Genetics and Pathology of Hepatitis Viruses, Reference Centre of the Tuscany Region for Chronic Liver Disease and Cancer, University Hospital of Pisa, Pisa, Italy
| | | | - Monica Ragucci
- Institute of Biostructure and Bioimages, National Research Council, Naples, Italy
| | | | - Anna Prinster
- Institute of Biostructure and Bioimages, National Research Council, Naples, Italy
| | | | - Marcello Mancini
- Institute of Biostructure and Bioimages, National Research Council, Naples, Italy
| | - Domenico D'Elia
- University of Pittsburgh Medical Center Institute for Health, Chianciano Terme, Siena, Italy
| | - Lorenzo Ghiadoni
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Ferruccio Bonino
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy; IRCSS SDN, Naples, Italy; Fondazione Italiana Fegato, AREA Science Park, Campus Basovizza, Trieste, Italy
| | - Maurizia R Brunetto
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy; Hepatology Unit and Laboratory of Molecular Genetics and Pathology of Hepatitis Viruses, Reference Centre of the Tuscany Region for Chronic Liver Disease and Cancer, University Hospital of Pisa, Pisa, Italy
| | - Francesco Faita
- Institute of Clinical Physiology, National Research Council, Pisa, Italy
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Armanetti P, Flori A, Avigo C, Conti L, Valtancoli B, Petroni D, Doumett S, Cappiello L, Ravagli C, Baldi G, Bencini A, Menichetti L. Spectroscopic and photoacoustic characterization of encapsulated iron oxide super-paramagnetic nanoparticles as a new multiplatform contrast agent. Spectrochim Acta A Mol Biomol Spectrosc 2018; 199:248-253. [PMID: 29626815 DOI: 10.1016/j.saa.2018.03.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 03/09/2018] [Accepted: 03/10/2018] [Indexed: 05/24/2023]
Abstract
Recently, a number of photoacoustic (PA) agents with increased tissue penetration and fine spatial resolution have been developed for molecular imaging and mapping of pathophysiological features at the molecular level. Here, we present bio-conjugated near-infrared light-absorbing magnetic nanoparticles as a new agent for PA imaging. These nanoparticles exhibit suitable absorption in the near-infrared region, with good photoacoustic signal generation efficiency and high photo-stability. Furthermore, these encapsulated iron oxide nanoparticles exhibit strong super-paramagnetic behavior and nuclear relaxivities that make them useful as magnetic resonance imaging (MRI) contrast media as well. Their simple bio-conjugation strategy, optical and chemical stability, and straightforward manipulation could enable the development of a PA probe with magnetic and spectroscopic properties suitable for in vitro and in vivo real-time imaging of relevant biological targets.
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Affiliation(s)
- Paolo Armanetti
- Istituto di Fisiologia Clinica, CNR, Via Giuseppe Moruzzi 1, Pisa 56124, Italy
| | - Alessandra Flori
- Fondazione Regione Toscana G. Monasterio, Via Giuseppe Moruzzi 1, Pisa 56124, Italy
| | - Cinzia Avigo
- Istituto di Fisiologia Clinica, CNR, Via Giuseppe Moruzzi 1, Pisa 56124, Italy
| | - Luca Conti
- Dipartimento di Chimica "Ugo Schiff", Università degli Studi di Firenze, Via della Lastruccia 3, 50019 Sesto Fiorentino, Firenze, Italy
| | - Barbara Valtancoli
- Dipartimento di Chimica "Ugo Schiff", Università degli Studi di Firenze, Via della Lastruccia 3, 50019 Sesto Fiorentino, Firenze, Italy
| | - Debora Petroni
- Istituto di Fisiologia Clinica, CNR, Via Giuseppe Moruzzi 1, Pisa 56124, Italy
| | - Saer Doumett
- Colorobbia Consulting Srl, via Pietramarina 123, 50053 Sovigliana, Vinci, Italy
| | - Laura Cappiello
- Colorobbia Consulting Srl, via Pietramarina 123, 50053 Sovigliana, Vinci, Italy
| | - Costanza Ravagli
- Colorobbia Consulting Srl, via Pietramarina 123, 50053 Sovigliana, Vinci, Italy
| | - Giovanni Baldi
- Colorobbia Consulting Srl, via Pietramarina 123, 50053 Sovigliana, Vinci, Italy
| | - Andrea Bencini
- Dipartimento di Chimica "Ugo Schiff", Università degli Studi di Firenze, Via della Lastruccia 3, 50019 Sesto Fiorentino, Firenze, Italy
| | - Luca Menichetti
- Istituto di Fisiologia Clinica, CNR, Via Giuseppe Moruzzi 1, Pisa 56124, Italy.
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Traino AC, Piccinno M, Avigo C. Dosimetry of non-uniform activity distribution: possibility to use the local energy deposition approach at the voxel level in radionuclide therapy. Biomed Phys Eng Express 2016. [DOI: 10.1088/2057-1976/2/6/065001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Avigo C, Flori A, Armanetti P, Di Lascio N, Kusmic C, Jose J, Losi P, Soldani G, Faita F, Menichetti L. Strategies for non-invasive imaging of polymeric biomaterial in vascular tissue engineering and regenerative medicine using ultrasound and photoacoustic techniques. POLYM INT 2016. [DOI: 10.1002/pi.5113] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Cinzia Avigo
- Institute of Clinical Physiology; National Research Council; via G. Moruzzi 1 56124 Pisa Italy
| | - Alessandra Flori
- Institute of Clinical Physiology; National Research Council; via G. Moruzzi 1 56124 Pisa Italy
| | - Paolo Armanetti
- Institute of Clinical Physiology; National Research Council; via G. Moruzzi 1 56124 Pisa Italy
| | - Nicole Di Lascio
- Institute of Clinical Physiology; National Research Council; via G. Moruzzi 1 56124 Pisa Italy
| | - Claudia Kusmic
- Institute of Clinical Physiology; National Research Council; via G. Moruzzi 1 56124 Pisa Italy
| | - Jithin Jose
- Institute of Clinical Physiology; National Research Council; via G. Moruzzi 1 56124 Pisa Italy
| | - Paola Losi
- Institute of Clinical Physiology; National Research Council; via G. Moruzzi 1 56124 Pisa Italy
| | - Giorgio Soldani
- Institute of Clinical Physiology; National Research Council; via G. Moruzzi 1 56124 Pisa Italy
| | - Francesco Faita
- Institute of Clinical Physiology; National Research Council; via G. Moruzzi 1 56124 Pisa Italy
| | - Luca Menichetti
- Institute of Clinical Physiology; National Research Council; via G. Moruzzi 1 56124 Pisa Italy
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Avigo C, Piccinno M, Traino A. Radiobiological alpha parameter estimate for a personalized 90Y microsphere treatment of hepato- and cholangio-carcinoma. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.01.336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Avigo C, Di Lascio N, Armanetti P, Kusmic C, Cavigli L, Ratto F, Meucci S, Masciullo C, Cecchini M, Pini R, Faita F, Menichetti L. Organosilicon phantom for photoacoustic imaging. J Biomed Opt 2015; 20:46008. [PMID: 25894254 DOI: 10.1117/1.jbo.20.4.046008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Accepted: 03/26/2015] [Indexed: 05/07/2023]
Abstract
Photoacoustic imaging is an emerging technique. Although commercially available photoacoustic imaging systems currently exist, the technology is still in its infancy. Therefore, the design of stable phantoms is essential to achieve semiquantitative evaluation of the performance of a photoacoustic system and can help optimize the properties of contrast agents. We designed and developed a polydimethylsiloxane (PDMS) phantom with exceptionally fine geometry; the phantom was tested using photoacoustic experiments loaded with the standard indocyanine green dye and compared to an agar phantom pattern through polyethylene glycol-gold nanorods. The linearity of the photoacoustic signal with the nanoparticle number was assessed. The signal-tonoiseratio and contrast were employed as image quality parameters, and enhancements of up to 50 and up to 300%, respectively, were measured with the PDMS phantom with respect to the agar one. A tissue-mimicking (TM)-PDMS was prepared by adding TiO2 and India ink; photoacoustic tests were performed in order to compare the signal generated by the TM-PDMS and the biological tissue. The PDMS phantom can become a particularly promising tool in the field of photoacoustics for the evaluation of the performance of a PA system and as a model of the structure of vascularized soft tissues.
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Affiliation(s)
- Cinzia Avigo
- Istituto di Fisiologia Clinica, CNR, Via Giuseppe Moruzzi 1, Pisa 56124, Italy
| | - Nicole Di Lascio
- Istituto di Fisiologia Clinica, CNR, Via Giuseppe Moruzzi 1, Pisa 56124, ItalybScuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, Pisa 56127, Italy
| | - Paolo Armanetti
- Università di Pisa, Dipartimento di Fisica, Largo Bruno Pontecorvo 3, Pisa 56127, Italy
| | - Claudia Kusmic
- Istituto di Fisiologia Clinica, CNR, Via Giuseppe Moruzzi 1, Pisa 56124, Italy
| | - Lucia Cavigli
- Istituto di Fisica Applicata "Nello Carrara," CNR, Via Madonna del Piano 10, Sesto Fiorentino (FI) 50019, Italy
| | - Fulvio Ratto
- Istituto di Fisica Applicata "Nello Carrara," CNR, Via Madonna del Piano 10, Sesto Fiorentino (FI) 50019, Italy
| | - Sandro Meucci
- NEST, Istituto Nanoscienze, CNR and Scuola Normale Superiore, Piazza San Silvestro 12, Pisa 56127, ItalyfCenter of Nanotechnology Innovation @NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, Pisa 56127, Italy
| | - Cecilia Masciullo
- NEST, Istituto Nanoscienze, CNR and Scuola Normale Superiore, Piazza San Silvestro 12, Pisa 56127, Italy
| | - Marco Cecchini
- NEST, Istituto Nanoscienze, CNR and Scuola Normale Superiore, Piazza San Silvestro 12, Pisa 56127, Italy
| | - Roberto Pini
- Istituto di Fisica Applicata "Nello Carrara," CNR, Via Madonna del Piano 10, Sesto Fiorentino (FI) 50019, Italy
| | - Francesco Faita
- Istituto di Fisiologia Clinica, CNR, Via Giuseppe Moruzzi 1, Pisa 56124, Italy
| | - Luca Menichetti
- Istituto di Fisiologia Clinica, CNR, Via Giuseppe Moruzzi 1, Pisa 56124, ItalygFondazione CNR/Regione Toscana G. Monasterio, Via Giuseppe Moruzzi 1, Pisa 56124, Italy
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Traino AC, Marcatili S, Avigo C, Sollini M, Erba PA, Mariani G. Dosimetry for nonuniform activity distributions: A method for the calculation of 3D absorbed-dose distribution without the use of voxelS-values, point kernels, or Monte Carlo simulations. Med Phys 2013; 40:042505. [DOI: 10.1118/1.4794473] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Abstract
Necrotizing sialometaplasia (NS) is a benign self-limiting inflammatory disease of mucus-secreting glands, mainly involving the minor salivary glands. This lesion can mimic a malignant neoplasm, as more frequently it manifests as a submucosal swelling or as an ulcer of the palate. Awareness of the disease is crucial to avoid undue surgical treatment. We herewith report MR findings in a histologically proven case of NS.
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Affiliation(s)
- D Farina
- Department of Radiology, Università degli Studi, 25123 Piazzale Spedali Civili 1, Brescia, Italy.
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