• JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
 
  Bookmark and Share
 
 
Doctoral Thesis
DOI
https://doi.org/10.11606/T.23.2016.tde-24052016-163618
Document
Author
Full name
Ana Laura Pion de Carvalho
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2015
Supervisor
Committee
Caldeira, Celso Luiz (President)
Barletta, Fernando Branco
Davidowicz, Harry
Gavini, Giulio
Yamaga, Lilian Yuri Itaya
Title in Portuguese
Análise comparativa das alterações periapicais diagnosticadas pela técnica radiográfica do paralelismo e pelo mapeamento tomográfico cintilográfico (com e sem blindador de raios gama)
Keywords in Portuguese
Aparato blindador de raios gama intrabucal
Cintilografia tomográfica
Diagnóstico
Abstract in Portuguese
O diagnóstico precoce de focos de infecção dentários é de fundamental importância para prevenir a ocorrência de maiores injúrias locais ou sistêmicas. Dentre os diversos métodos utilizados para complementar os achados radiológicos das alterações dentoalveolares surge uma alternativa: a cintilografia tomográfica (SPECT/CT), que permite a fusão de achados morfológicos com alterações metabólicas. Com o objetivo de estabelecer o diagnóstico precoce e acurado de processos infecciosos dentários, foram estudadas 320 áreas dentárias em mandíbula e maxila em (10 pacientes de ambos os sexos selecionados por meio de exames clínicos e radiológicos convencionais, seguidos de cintilografia tomográfica com e sem aparato blindador de raios gama. Os exames cintilográficos foram realizados no Serviço de Medicina Nuclear do Hospital Israelita Albert Einstein (HIAE). Para isso, foi administrado para cada paciente o radiofármaco tecnécio 99- metilenodifosfonato (99mTc-MDP) via endovenosa com a dose de 37mBq/3Kg de peso corporal do paciente. Após o período de acúmulo de três horas, foi realizado o protocolo de aquisição de imagens. Todas as imagens foram analisadas por um médico nuclear e um endodontista, com experiência em cintilografia tomográfica. O resultado obtido por meio do exame radiográfico intrabucal pela técnica periapical digital mostraram 6 imagens positivas, em um total de 1,87% da amostra; exame do mapeamento cintilográfico dos ossos da face com a utilização do blindador de raios gâma revelou 9 imagens positivas, correspondendo a 2,81% do total de áreas estudadas, havendo diferença estatisticamente significante ao nível de 95% pelo teste qui-quadrado. Pode-se concluir que o SPECT/CT permitiu identificar as alterações periapicais em maior número quando comparadas ao exame radiográfico periapical e ao mapeamento cintilográfico dos ossos da face com a utilização do blindador de raios gama; o exame de SPCET/CT além de mostrar imagens mais detalhadas, permitiu também localizar com exatidão as áreas alteradas.
Title in English
Comparison analyzes of periapical alterations diagnosed by radiograph exam by the parallel technique and through scintigraphic tomographic mapping (with and without intra-oral apparatus)
Keywords in English
Diagnosis
intra-oral apparatus
Tomographic Scintigraphy
Abstract in English
The early diagnosis of cases with dental infection is very important to prevent the occurrence of major local or systemic injuries. With many methods used to complement the radiological findings of the bone alterations there's the tomographic scintigraphy witch allows the fusion of morphological and metabolic findings. With the objective of the establishment of early diagnosis and accurate dental infectious processes, it was studied 320 dental areas in maxilla and mandible (10 patients) selected randomly, through conventional radiological exams, followed by tomographic scintigraphy with and without intra-oral apparatus. The scintilographic exams were done at the Nuclear Medicine Service of Hospital Israelita Albert Einstein. For that, methylenediphosphonate-technetium-99m (99mTc-MDP) was dispensed intravenous. After the period of accumulation of 3 hours, the image acquisition protocol was taken. This protocol includes images from the top of the head to the neck. After the image analyzes, statistics was done. The intrabucal radiograph exam by the digital periapical technique showed 6 positive images, in a total of 1.87% of the total sample, Intra-oral apparatus showed 9 positive images, in a total os 2,81% of the sample and SPECT/CT exam revealed 15 positive images, corresponding to 4.28% of the total studied areas, showing statistical significance by the level of 95% of qui-square. We could conclude that SPECT/CT allowed identifying the endodontic infections in a larger number when compared with the radiograph exams; and the SPECT/CT exam showed to be of great interest by allowing the union of the diagnosis precocity with the image detail, presenting exact localization of inflammatory/infectious alterations due to the presence of the CT.
 
WARNING - Viewing this document is conditioned on your acceptance of the following terms of use:
This document is only for private use for research and teaching activities. Reproduction for commercial use is forbidden. This rights cover the whole data about this document as well as its contents. Any uses or copies of this document in whole or in part must include the author's name.
Publishing Date
2016-06-23
 
WARNING: Learn what derived works are clicking here.
All rights of the thesis/dissertation are from the authors
CeTI-SC/STI
Digital Library of Theses and Dissertations of USP. Copyright © 2001-2024. All rights reserved.