Výsledky vyhledávání - "José, Willegaignon de Amorim de Carvalho"

Accuracy in dosimetry of diagnostic agents: impact of the number of source tissues used in whole organ S value-based calculations

Autor: Klaikangwol Siritantikorn, Anders Josefsson, José Willegaignon de Amorim de Carvalho, Marcelo Tatit Sapienza, Carlos Alberto Buchpiguel, Wesley E. Bolch, George Sgouros, Sagar Ranka

Publikováno v: EJNMMI Research, Vol 10, Iss 1, Pp 1-9 (2020)
EJNMMI Research

Background Dosimetry for diagnostic agents is performed to assess the risk of radiation detriment (e.g., cancer) associated with the imaging agent and the risk is assessed by computing the effective dose coefficient, e. Stylized phantoms created by t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f712b2c96aeb5caf4b3254fb2846d2a
http://link.springer.com/article/10.1186/s13550-020-0614-6

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Comparative Dosimetry for 68Ga-DOTATATE: Impact of Using Updated ICRP Phantoms, S Values, and Tissue-Weighting Factors

Autor: Bryan C. Schwarz, Sagar Ranka, Carlos Alberto Buchpiguel, Marcelo Tatit Sapienza, Wesley E. Bolch, Anders Josefsson, Robert F. Hobbs, George Sgouros, José Willegaignon de Amorim de Carvalho, Donika Plyku

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

The data that have been used in almost all calculations of MIRD S value absorbed dose and effective dose are based on stylized anatomic computational phantoms and tissue-weighting factors adopted by the International Commission on Radiological Protec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28a3f57304d65857c1266145866e28ea
https://doi.org/10.2967/jnumed.117.203893

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Comparison of the Variability of SUV Normalized by Skeletal Volume with the Variability of SUV Normalized by Body Weight in

Autor: José Flávio, Gomes Marin, Paulo Schiavom, Duarte, José, Willegaignon de Amorim de Carvalho, Heitor Naoki, Sado, Marcelo Tatit, Sapienza, Carlos Alberto, Buchpiguel

Publikováno v: Journal of nuclear medicine technology. 47(1)

Our objective was to test the hypothesis that variability in SUV normalized by skeletal volume (SV) in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::fee281445688fc671be0ab817fdeff14
https://pubmed.ncbi.nlm.nih.gov/30139886

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Iodine/FDG 'Flip-Flop' Phenomenon Inside a Large Metastatic Thyroid Cancer Lesion Better Characterized on SPECT/CT and PET/CT Studies

Autor: Paulo Schiavom Duarte, Marcelo Tatit Sapienza, José Flávio Gomes Marin, Carlos Alberto Buchpiguel, José Willegaignon de Amorim de Carvalho

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

Iodine/FDG "flip-flop" phenomenon inside large metastatic thyroid cancer lesions has been rarely described. We present a case of this phenomenon better characterized using SPECT/CT and PET/CT studies.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4fa4196cd7b590eff7527f3af2b7ff80
https://pubmed.ncbi.nlm.nih.gov/29517543

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Brain Metastasis of Medullary Thyroid Carcinoma Without Macroscopic Calcification Detected First on 68Ga-Dotatate and Then on 18F-Fluoride PET/CT

Autor: Carlos Alberto Buchpiguel, José Willegaignon de Amorim de Carvalho, Paulo Schiavom Duarte, Marcelo Tatit Sapienza, José Flávio Gomes Marin

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

We report a case of a medullary thyroid carcinoma noncalcified brain metastasis characterized on Ga-dotatate PET/CT but not on an F-fluoride PET/CT performed 1 month later. Subsequent F-fluoride PET/CT studies performed 7 and 19 months after the Ga-d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d350be8e733c33e1a5060cbe782c79fd
https://doi.org/10.1097/rlu.0000000000002163

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Could the treatment of differentiated thyroid carcinoma with 3.7 and 5.55 GBq of (131I)NaI, on an outpatient basis, be safe?

Autor: Carla Rachel Ono, José Willegaignon de Amorim de Carvalho, Maria Helena Marechal, Ricardo Fraga Gutterres, Marcelo Tatit Sapienza, Maria Inês Calil Cury Guimarães, Tomoco Watanabe, Carlos Alberto Buchpiguel

Publikováno v: Nuclear Medicine Communications. 30:533-541

The first objective of this study was to evaluate the radiological impact on relatives and the environment because of outpatient treatment of differentiated thyroid carcinoma with 3.7 and 5.55 GBq of (131I)NaI. The second objective was to determine,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c78fc7cd64c32b726313c7f53f2f519c
https://doi.org/10.1097/mnm.0b013e32832b79bc

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Dosimetria e cuidados de radioproteção para pacientes submetidos a procedimentos diagnósticos em medicina nuclear

Autor: Samantha Cristina Pereira Fernandes

Publikováno v: Biblioteca Digital de Teses e Dissertações da USP
Universidade de São Paulo (USP)
instacron:USP

Pacientes que são submetidos a procedimentos de Medicina Nuclear, sejam eles diagnósticos ou terapêuticos, tornam-se fontes radioativas por um determinado período de tempo até que a substância radioativa incorporada por eles seja completamente

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::554216c6443b3836e697a1cfdb915ce8
https://doi.org/10.11606/d.5.2020.tde-15092021-141424

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Administered radioisotope activities in Nuclear Medicine and a proposal of diagnostic reference level (DRL) to Brasil

Autor: Luis Felipe Emanuel Faleiros Braga

Publikováno v: Biblioteca Digital de Teses e Dissertações da USP
Universidade de São Paulo (USP)
instacron:USP

Estima-se que o número de exames diagnósticos em Medicina Nuclear cresça a uma taxa de 5% ao ano, ocasionando aumento das exposições de pacientes, familiares e meio ambiente às radiações ionizantes. O intuito dos guias de referência em exame

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd1e4cb7485a26eb056382847b42d657

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Patient-Specific Imaging Dosimetry for Radioiodine Treatment Planning

Autor: Daniel Luis Franzé

Publikováno v: Biblioteca Digital de Teses e Dissertações da USP
Universidade de São Paulo (USP)
instacron:USP

Pacientes que sofrem de doenças na tireoide, como hipertireoidismo causado pela doença de Graves, ou câncer de tireoide, têm como principal forma de tratamento a chamada terapia por radioiodo. Este tratamento consiste na ingestão de um radionucl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f038b06d21fe81812c013a141e43cb78

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