http://www.cnr.it/ontology/cnr/individuo/prodotto/ID30055

A compact gamma ray imager for oncology (Articolo in rivista)

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Pani R., Soluri A., Scafé R., Pellegrini R., Tatl A., Scopinaro F ., De Vincentis G., Gigliotti T. Festinesi A., Garibaldi F., Del Guerra A. (2002)
A compact gamma ray imager for oncology
in NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT; ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, AMSTERDAM (Paesi Bassi)
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Pani R., Soluri A., Scafé R., Pellegrini R., Tatl A., Scopinaro F ., De Vincentis G., Gigliotti T. Festinesi A., Garibaldi F., Del Guerra A. (literal)

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1-4-6-7-8-Department of Experimental Medicine and Pathology, University of Rome, La Sapienza, V.le Regina Elena 329, I-00185 Roma, Italy 2 Institute of Biomedical Technologies CNR, Rome, Italy 3-5-9 ENEA-INN, CR Casaccia, Rome, Italy 10ISS Rome, Italy 11 Department of Physics, University of Pisa, Italy (literal)

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Abstract

A variety of new techniques based on radiopharmaceuticals are showing a valid support for cancer detection and interventional procedures. Axillary lymph nodes status is the most important prognostic factor for determining breast cancer prognosis. The use of dedicated gamma cameras characterized by low costs and weight, could be easily transferred to detection for bioptical procedures. To this aim this paper presents a new detection system having two heads with 4 and 25 cm2 Field of View (FOV) and 0.8 and 3.6 kg weight, respectively. This novel scintillation camera is based upon a compact Position Sensitive Photo Multiplier Tube (PSPMT) Hamamatsu R5900-C8 as individual or array assembled. The Hamamatsu R5900-C8 is a metal channel dynode PMT with a crossed wire anode. The overall dimensions are 28×28 mm2 and 20 mm height. It was coupled to a CsI(Tl) array of individual 3×3×3 mm3 crystals. The measured intrinsic spatial resolution proved much better than the pixel size. A clinical image obtained from a breast phantom showed a 6 mm sized tumor. (literal)

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