Assessment of different based regions of interest methods for [99mTc]Tc DAT-SPECT quantification using an anthropomorphic striatal phantom

Autor: Leonardo Alexandre-Santos, Ana Carolina Trevisan, Felipe Arriva Pitella, Vitor Tumas, José Henrique Silvah, Mery Kato, Eder Rezende Moraes, Lauro Wichert-Ana

Background and Aims: Molecular imaging of the dopamine transporters (DAT) provides usefull information about neurodegenerative diseases, such as Parkinson’s. This study assessed the accuracy and precision of DAT-SPECT quantification methods. Method

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::76caa9253588eeed047d5955bcd8f49c
https://doi.org/10.21203/rs.3.rs-1745204/v1

Characterization of resolution, sensitivity, and shielding of a gamma-probe for sentinel lymph node localization

Autor: Leonardo A. Santos, Ana Carolina Trevisan, Mery Kato, Eder Rezende Moraes, Felipe Arriva Pitella, Emerson Nobuyuki Itikawa, Lauro Wichert-Ana

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

The aim of this study was to evaluate angular, spatial, and energy resolution, sensitivity, and shielding of a gamma-probe.The EUROPROBE II gamma-probe (EuroRad) with sources of technetium-99m was assessed according to NEMA NU-3-2004. Resolution test

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5122ca7ba6dbbaabb0754789c5866a0
https://doi.org/10.1097/mnm.0000000000000725

Towards component-based validation of GATE: Aspects of the coincidence processor

Autor: Jonathan K Poon, Karthikayan Balakrishnan, Wenli Wang, Ramsey D. Badawi, Eder Rezende Moraes

Publikováno v: Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB), vol 31, iss 1
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

GATE is public domain software widely used for Monte Carlo simulation in emission tomography. Validations of GATE have primarily been performed on a whole-system basis, leaving the possibility that errors in one sub-system may be offset by errors in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::547aaa4594b8eca7cccc09b315113fb8
https://doi.org/10.1016/j.ejmp.2014.09.001

Comparison between manual and automated techniques for assessment of data from dynamic antral scintigraphy

Autor: Marie Secaf, Eder Rezende Moraes, Gustavo P. Misiara, Luiz Ernesto de Almeida Troncon

Publikováno v: Annals of Nuclear Medicine. 22:761-767

This work aimed at determining whether data from dynamic antral scintigraphy (DAS) yielded by a simple, manual technique are as accurate as those generated by a conventional automated technique (fast Fourier transform) for assessing gastric contracti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d068caa1aa89dee5cb50095242195e0f
https://doi.org/10.1007/s12149-008-0182-8

Assessment of the post-prandial distribution of intragastric contents using an automated technique

Autor: Marie Secaf, Eder Rezende Moraes, Oswaldo Baffa, Luiz Ernesto de Almeida Troncon, José Ruver L. Herculano, Ricardo Brandt de Oliveira

Publikováno v: Physiological Measurement. 27:769-776

The distribution of intragastric contents has been studied using operator-dependent methods. We devised an automated technique for determining post-prandial intragastric distribution of radiolabeled meals, based on the calculation of the 'center of a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68bcc0f8038b7a634c5bc3ae6d789afc
https://doi.org/10.1088/0967-3334/27/9/001