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1.
Einstein (Säo Paulo) ; 18: eMD5223, 2020. graf
Article in English | LILACS | ID: biblio-1056059

ABSTRACT

ABSTRACT Computed tomography with multiple detectors and the advancement of processors improved rendered images and three-dimensional reconstructions in clinical practice. Traditional axial slices form non-intuitive images because they are seen in only one plane. The three-dimensional reconstructions can show structures details and diseases with complex anatomy in different perspectives. Cinematic rendering is a newly three-dimensional reconstruction technique, already approved for clinical use, which can produce realistic images from traditional computed tomography data. The algorithm used is based on light trajectory methods and the global lighting model, which simulate thousands of images from all possible directions. Thus, the technique shapes the physical propagation of light and generates a realistic three-dimensional image with depth, shadows and more anatomic details. It is a multidimensional rendering acquired through complex lighting effects. The aim of this article was to show the advance of three-dimensional technology with the cinematic rendering in images exams of the thoracic wall.


RESUMO A tomografia computadorizada com os múltiplos detectores e o avanço dos processadores melhoraram as imagens renderizadas e as reconstruções tridimensionais na prática clínica. Os cortes axiais tradicionais formam imagens não intuitivas, pois são vistas em apenas um plano. Já as reconstruções tridimensionais podem exibir detalhes anatômicos em diferentes perspectivas das estruturas e de doenças com anatomia complexa. A renderização cinematográfica é uma técnica de reconstrução tridimensional recentemente introduzida, já aprovada para uso clínico, que pode produzir imagens realistas a partir de dados tradicionais da tomografia computadorizada. O algoritmo usado é baseado em métodos de trajetória da luz e no modelo de iluminação global, os quais simulam milhares de imagens de todas as direções possíveis. Assim, a técnica molda a propagação física da luz e gera uma imagem tridimensional realista, com profundidade, sombras e mais detalhes da alteração anatômica. É uma renderização multidimensional adquirida por efeitos de iluminação complexos. O objetivo deste artigo foi mostrar o avanço da tecnologia tridimensional com a renderização cinematográfica nos dos exames de imagens da parede torácica.


Subject(s)
Humans , Male , Adult , Thoracic Neoplasms/diagnostic imaging , Carcinoma, Squamous Cell/diagnostic imaging , Sarcoma, Synovial/diagnostic imaging , Imaging, Three-Dimensional/methods , Thoracic Wall/diagnostic imaging , Algorithms , Tomography, X-Ray Computed/methods , Sarcoma, Synovial/secondary , Middle Aged
3.
Korean Journal of Radiology ; : 853-859, 2015.
Article in English | WPRIM | ID: wpr-22484

ABSTRACT

Malignant kidney neoplasms are the most frequently encountered solid kidney masses. Although renal cell carcinoma is the major renal malignancy, other solid malignant renal masses should be considered in the differential diagnosis of solid renal masses that do not contain a macroscopic fatty component. In this pictorial essay, we present the imaging findings of a primitive neuroectodermal tumor, primary liposarcoma of the kidney, primary neuroendocrine tumor, leiomyosarcoma, synovial sarcoma, malignant fibrous histiocytoma, sclerosing fibrosarcoma and renal metastasis of osteosarcoma.


Subject(s)
Humans , Middle Aged , Bone Neoplasms/secondary , Carcinoma, Renal Cell/pathology , Diagnosis, Differential , Fibrosarcoma/diagnostic imaging , Histiocytoma/diagnostic imaging , Kidney Neoplasms/pathology , Leiomyosarcoma/pathology , Magnetic Resonance Imaging , Neuroectodermal Tumors, Primitive/pathology , Osteosarcoma/pathology , Sarcoma , Sarcoma, Synovial/diagnostic imaging , Tomography, X-Ray Computed
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