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Avaliação de fraturas com recurso a TC de dupla energia
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Abstract(s)
Introdução: As fraturas são lesões ósseas que consistem na perda da continuidade óssea. O edema da medula óssea é normalmente uma resposta a uma lesão. No caso de ser uma fratura pode ser fundamental para a identificação da mesma. Embora a radiografia seja o exame de primeira linha, pode não revelar edema ósseo. A Tomografia Computorizada é uma das modalidades de referência no diagnóstico de fraturas nomeadamente a Tomografia Computorizada de Dupla Energia, através do pós-processamento de imagens em Bone Marrow.
Objetivo: A investigação teve como intuito avaliar as vantagens do recurso à Tomografia Computorizada de Dupla Energia com pós-processamento de imagens em Bone Marrow quando se pretende diagnosticar fraturas.
Material e Métodos: O estudo é composto por uma amostra de base hospitalar constituída por 50 exames de Tomografia Computorizada, recolhidos através do PACS do Hospital da Luz Coimbra, cujos doentes recorreram ao serviço de imagiologia com suspeita de fratura. As imagens foram pós-processadas em Bone Marrow. De seguida, elaborou-se um questionário, que foi respondido por 4 avaliadores (com 20 anos de experiência). Após a recolha de dados e introdução dos mesmos numa base de dados no IBM SPSS Statistics foi realizada a sua análise através de estatística descritiva e testes de hipóteses.
Resultados: A maioria dos achados imagiológicos foram traços de fratura, sendo 26,6% fraturas da tibiotársica. A presença de artefactos foi apenas de 2,0%. Verificou-se que as imagens pós-processadas em Bone Marrow, para além de possuírem uma boa qualidade, apresentavam correspondência com as imagens de Tomografia Computorizada. Os avaliadores concordaram que a adição deste pós-processamento contribuiu significativamente para a análise das imagens, facilitando a identificação de fraturas.
Conclusão: Recorrer a imagens de Tomografia Computorizada pós-processadas em Bone Marrow revelou ser uma mais-valia quando o objetivo é diagnosticar pequenas fraturas.
Introduction: Fractures are bone lesions that consist on the loss of bone continue. Bone Marrow edema is a normal reaction to a lesion. In case of a fracture, it can be crucial for its identification. Although a radiograph is the first-line examination, it may not reveal bone edema. Computed Tomography is one of the reference modalities in the diagnosis of fractures, particularly Dual-Energy Computed Tomography, through post-processing of images in Bone Marrow. Objective: The investigation aimed to evaluate the advantages of using Dual-Energy Computed Tomography with post-processing of images Bone Marrow for the diagnosis of fractures. Materials and Methods: The study is composed of hospital base sample consisting of 50 CT exams, collected through the PACS of Hospital da Luz de Coimbra, where patients attended the Imaging Department with suspected fracture. The images were post-processed in Bone Marrow. A questionnaire was then prepared and answered by 2 technicians and 2 doctors (with 20 years of experience). After collecting all the data and introducing it into a database in IBM SPSS Statistics, analysis was carried out using descriptive statistics and hypothesis tests. Results: The majority of imaging findings were fracture traces, 26,6% of which were tibio tarsal fractures. The presence of artefacts was only 2,0%. It was verified that the post-processed images in Bone Marrow, while they have a good image quality, they also corresponded with Computed Tomography images. The evaluators agreed that the addition of this post-processing significantly contributed to the image analysis, facilitating the identification of fractures. Conclusions: Using post-processed CT images in Bone Marrow proved to be an asset when the objective is to diagnose small fractures.
Introduction: Fractures are bone lesions that consist on the loss of bone continue. Bone Marrow edema is a normal reaction to a lesion. In case of a fracture, it can be crucial for its identification. Although a radiograph is the first-line examination, it may not reveal bone edema. Computed Tomography is one of the reference modalities in the diagnosis of fractures, particularly Dual-Energy Computed Tomography, through post-processing of images in Bone Marrow. Objective: The investigation aimed to evaluate the advantages of using Dual-Energy Computed Tomography with post-processing of images Bone Marrow for the diagnosis of fractures. Materials and Methods: The study is composed of hospital base sample consisting of 50 CT exams, collected through the PACS of Hospital da Luz de Coimbra, where patients attended the Imaging Department with suspected fracture. The images were post-processed in Bone Marrow. A questionnaire was then prepared and answered by 2 technicians and 2 doctors (with 20 years of experience). After collecting all the data and introducing it into a database in IBM SPSS Statistics, analysis was carried out using descriptive statistics and hypothesis tests. Results: The majority of imaging findings were fracture traces, 26,6% of which were tibio tarsal fractures. The presence of artefacts was only 2,0%. It was verified that the post-processed images in Bone Marrow, while they have a good image quality, they also corresponded with Computed Tomography images. The evaluators agreed that the addition of this post-processing significantly contributed to the image analysis, facilitating the identification of fractures. Conclusions: Using post-processed CT images in Bone Marrow proved to be an asset when the objective is to diagnose small fractures.
Description
Keywords
Fratura Edema da Medula Óssea Tomografia Computorizada de Dupla Energia Bone Marrow Fracture Bone Marrow Edema Dual Energy Computed Tomography