RPC-PET: a new very high resolution PET technology

• Type: Article in International Conference Proceedings Book
• Date: 2004

Authors

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

Conference proceedings International

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

Pages: 2356-2360

Nuclear Science Symposium/Medical Imaging Conference

Rome, ITALY, OCT 16-22, 2004

Indexing

ISI Web of Knowledge - 4 Citations

Scopus - 3 Citations

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 5