RPC-PET: a new very high resolution PET technology

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2004

Autores

Blanco, A (Autor) Outra; Carolino, N (Autor) Outra; Ferreira, NC (Autor) Outra; Correia, CMBA (Autor) Outra; Macedo, MP (Autor) Outra; Fazendeiro, L (Autor) Outra; Marques, MFF (Autor) Outra; Marques, RF (Autor) Outra; Gil, C (Autor) Outra; Fonte, P (Autor) Outra

Ata de Conferência Internacional

Título: 2004 IEEE Nuclear Science Symposium Conference Record, Vols 1-7

Páginas: 2356-2360

Nuclear Science Symposium/Medical Imaging Conference

Rome, ITALY, OCT 16-22, 2004

Indexação

ISI Web of Knowledge - 4 Citações

Scopus - 3 Citações

Outras Informações

ID Authenticus: P-008-R01

Abstract (EN): In this study we present experimental and simulated results from a first prototype of a positron emission tomography (PET) system based on the resistive plate chamber (RPC) technology - a gaseous particle detector developed for high energy physics. The prototype is aimed at validating the expectations, derived from simulations, of a system with sub-millimeter spatial image resolution and no parallax error, which may be useful for the imaging of small animals. By imaging a point-like 22Na source in the transaxial plane, an intrinsic spatial resolution of 0.52 mm FWHM was demonstrated for a system diameter of 60 mm. A corresponding image spatial resolution of 0.5 mm FWHM was obtained using the standard algorithm of filtered back projection and 0.4 mm FWHM after reconstruction by an ML-EM type algorithm. An optimized complete system was simulated to evaluate sensitivity and system count rate performance for the imaging of mice, suggesting a sensitivity up to 2.1 % at the centre of the field of view and a peak NEC rate up to 320 Kcps for a total activity of 100MBq in the phantom. © 2004 IEEE.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 5