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1.
Dental press j. orthod. (Impr.) ; 18(4): 53-60, July-Aug. 2013. ilus, tab
Article in English | LILACS | ID: lil-695120

ABSTRACT

OBJECTIVE: The purpose was to compare angular and linear measurements generated in digital cephalometric radiographs and cephalograms synthesized from three-dimensional images. METHODS: Twenty-six individuals (12 men and 14 women) with mean age of 26.3 years were selected. Digital cephalometric radiographs and CBCTs were taken on the same day. The images were imported and analyzed on Dolphin Imaging V.10.5 software, which synthesized cephalograms in perspective projection and magnification of 9.7%. A single observer marked the points and repeated the procedure with an interval of time of ten days to evaluate intraexaminer error. In the statistical analysis paired Student's t test was used to establish the correlation between the measurements. RESULTS: The angular measurements GoGn.SN and IMPA, which involved the Gonial point (Go) and the linear measurements that involved the lips presented significant difference (p < 0.05). The other measurements presented good correlation. CONCLUSION: The measurements in the synthesized cephalograms proved to be reliable.


OBJETIVO: comparar medidas angulares e lineares geradas em radiografias cefalométricas digitais e cefalogramas sintetizados a partir de imagens tridimensionais. MÉTODOS: selecionou-se 26 indivíduos (12 do sexo masculino e 14 do feminino), com média de idade de 26,3 anos, que realizaram no mesmo dia as radiografias cefalométricas digitais e tomografia computadorizada de feixe cônico. As imagens foram importadas e analisadas no software Dolphin Imaging V.10.5, que sintetizou cefalogramas com projeção perspectiva e magnificação de 9,7%. As marcações dos pontos foram realizadas por um único observador e repetidas com um intervalo de tempo de 10 dias para avaliação do erro intraexaminador. Para a análise estatística, utilizou-se o teste t de Student pareado para estabelecer a correlação entre as medidas. RESULTADOS: as medidas angulares GoGn.SN e IMPA, que envolviam o ponto Gônio (Go), e as medidas lineares que envolviam os lábios, apresentaram diferença significativa (p < 0,05). As outras medidas apresentaram boa correlação. CONCLUSÃO: as medições nos cefalogramas sintetizados mostraram-se confiáveis.


Subject(s)
Adult , Female , Humans , Male , Cephalometry/methods , Cone-Beam Computed Tomography/methods , Imaging, Three-Dimensional/methods , Radiography, Dental/methods , Cone-Beam Computed Tomography/standards , Reproducibility of Results , Software
2.
J. vasc. bras ; 6(2): 171-174, jun. 2007. ilus
Article in Portuguese | LILACS | ID: lil-462278

ABSTRACT

Paciente do sexo feminino, 55 anos de idade, vítima de atropelamento, foi admitida em unidade de emergência, onde se realizou o diagnóstico clínico, radiológico e tomográfico de ruptura traumática da aorta torácica descendente. Diante do achado, a paciente foi encaminhada para tratamento endovascular com colocação de endoprótese auto-expansível (stent) pela artéria femoral. O tratamento obteve sucesso, evidenciado pela exclusão da lesão localizada previamente no istmo aórtico. O tratamento endovascular tem sido indicado nas afecções de aorta torácica descendente com bons resultados iniciais. Na ruptura traumática de aorta, a terapêutica endovascular representa uma alternativa aceitável, especialmente devido aos riscos do tratamento operatório convencional.


A 55-year-old, female patient who was run over by a motor vehicle was admitted at an emergency room. Clinical, radiological and tomographic diagnosis of traumatic descending aortic thoracic rupture was performed. The patient was referred for endovascular treatment with placement of a self-expandable stent through the femoral artery. Treatment was successful, with exclusion of the lesion previously located in the aortic isthmus. Endovascular treatment has been indicated in the treatment of descending thoracic aortic diseases, with good initial results. In case of traumatic aortic rupture, endovascular treatment is a feasible alternative, especially due to risks offered by the conventional surgical treatment.


Subject(s)
Humans , Female , Middle Aged , Aorta/surgery , Aorta/injuries , Radiology, Interventional/methods , Stents
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