In Vivo Response to Compression of 35 Breast Lesions Observed with a Two-Dimensional Locally Regularized Strain Estimation Method

International audienceThe objective of this study was to assess the in vivo performance of our 2-D locally regularized strain estimation method with 35 breast lesions, mainly cysts, fibroadenomas and carcinomas. The specific 2-D deformation model used, as well as the method's adaptability, led to an algorithm that is able to track tissue motion from radiofrequency ultrasound images acquired in clinical conditions. Particular attention was paid to strain estimation reliability, implying analysis of the mean normalized correlation coefficient maps. For all lesions examined, the results indicated that strain image interpretation, as well as its comparison with B-mode data, should take into account the information provided by the mean normalized correlation coefficient map. Different trends were observed in the tissue response to compression. In particular, carcinomas appeared larger in strain images than in B-mode images, resulting in a mean strain/B-mode lesion area ratio of 2.59 ± 1.36. In comparison, the same ratio was assessed as 1.04 ± 0.26 for fibroadenomas. These results are in agreement with those of previous studies, and confirm the interest of a more thorough consideration of size difference as one parameter discriminating between malignant and benign lesions

ELASTOGRAPHIC FINDINGS COMPARISON OF CANCEROUS BREAST LESIONS OBSERVED IN VIVO

International audienc

Elastographic versus B-mode dimensional analysis of breast tissue lesions

International audienceThe objective of elastography is to complement mammography and ultrasound to better differentiate between benign and malignant breast lesions. In this aim, strain-related criteria have been introduced, based on axial strain imaging but also shear strain imaging. In this study, size and shape of fibroadenomas and cancers between B-mode and axial strain images are compared. To quantify the size differences observed, the area of the lesions in elastograms and sonograms were determinedand the strain/B-mode area ratios computed

Danos à saúde dos trabalhadores de enfermagem em um serviço de hemodiálise

Objetivo: Mensurar os danos à saúde relacionados ao trabalho e associá-los com as características sociolaborais de trabalhadores de enfermagem de um serviço de hemodiálise do Sul do Brasil.Método: Pesquisa quantitativa, realizada com 46 trabalhadores. Utilizou-se um questionário autopreenchível com dados sociolaborais e a Escala de Danos Relacionados ao Trabalho. Realizou-se a análise descritiva, bivariada e correlacional, com níveis de significância de 5%, usando os programas Epi-info® e Predictive Analytics Software.Resultados: Os danos físicos, psicológicos e sociais foram avaliados como suportáveis, sendo identificada associação com a satisfação com a remuneração atual e afastamento do trabalho para tratamento de saúde (p< 0,05). As dores nas costas (3,74±2,04) e nas pernas (3,48±2,10) foram consideradas graves. Houve correlação direta entre os danos à saúde (r> 0,31, p< 0,05).Conclusão: Apesar da avaliação positiva dos danos à saúde na população estudada, reitera-se a necessidade de medidas que favoreçam a saúde dos trabalhadores.Palavras-chave: Enfermagem. Saúde do trabalhador. Diálise renal. Enfermagem em nefrologia. Trabalho