24 documents found, page 1 of 3
Sustainability in medical imaging and radiotherapy education and practice: a su...
Saúde, José Miguel; Adubeiro, Nuno; Nogueira, Luísa; Ribeiro, Inês; Xavier, Ana; Carvalhais, Carlos; Alberto Alves Carvalhais, CarlosHigher education institutions play an important role as they prepare the professionals, decision-makers, and democratic citizens of the future. In Allied Health education, it is crucial to develop a professional that, in addition to the technical and clinical content, also have a critical sense regarding environmental and social aspects. This study aims to survey medical imaging and radiotherapy (MIR) students’...
Editorial for “Detecting adverse pathology of prostate cancer with a deep learn...
Adubeiro, Nuno; Nogueira, LuísaProstate cancer (PCa) is the second most prevalent cancer among men worldwide. Timely and accurate diagnosis is important to avoid overtreatment of men with indolent, clinically insignificant PCa and to offer radical curative treatment with life-threatening, clinically significant PCa. Radical prostatectomy (RP) has become the standard care for eligible patients because of its cancer control and improved surviv...
Editorial for “3D breast cancer segmentation in DCE‐MRI using deep learning wit...
Nogueira, Luísa; Adubeiro, Nuno; Nunes, Rita G.Magnetic resonance imaging (MRI) shows higher diagnostic performance in the detection of breast tumors, compared with other imaging modalities. Breast MRI protocols include dynamic contrast-enhanced (DCE) images with high spatial and temporal resolution and are central indiagnosis, staging, and follow-up of breast cancer. DCE features provide physiological and anatomical lesion characteristics. To extract these...
Impact of walking on knee articular cartilage T2 values estimated with a dictio...
Coelho, José M.; Fernandes, T.T.; Alves, Sandra Maria; Nunes, R.G.; Nogueira, Luísa; Oliveira, A.Walking is crucial for knee articular cartilage (KAC) health. Routine MRI sequences lack sensitivity for early cartilage changes, and the use of parametric T2 maps to study the effect of walking on KAC composition is limited. This study aimed to evaluate if quantitative T2 maps using an Echo Modulation Curve (EMC) matching algorithm can detect KAC T2 variations due to water content changes after walking. Seven ...
Editorial for “Three‐dimensional multifrequency MR elastography for microvascul...
Adubeiro, Nuno; Nunes, Rita G.; Nogueira, LuísaThe prognosis of individuals with hepatocellular carcinoma(HCC), the most prevalent primary liver malignancy, is closely linked to the aggressiveness and recurrence of the tumor. The occurrence of complications after surgery continues to be a major and persistent challenge. MR elastography (MRE) employs a modified phase-contrast imaging sequence, combined with the use of an external driver to transmit mechanical...
Associations between nutrition, energy expenditure and energy availability with...
Amorim, Tânia; Freitas, Laura; Metsios, George S.; Thayse, Natacha Gomes; Wyon, Matthew; Flouris, Andreas D.; Maia, José; Marques, FranklimThree years of study showed that female and male vocational dancers displayed lower bone mass compared to controls, at forearm, lumbar spine and femoral neck. Energy intake was found to positively predict bone mass accruals only in female dancers at femoral neck. Vocational dancers can be a risk population to develop osteoporosis.
Editorial for "Feasibility of velocity-selective arterial spin labelling in bre...
Nogueira, Luísa; Nunes, Rita GouveiaDynamic contrast-enhanced MRI (DCE-MRI) is currently considered an essential sequence in breast imaging since perfusion is a marker of tumor vascularity. Previ ous studies using ultrafast DCE-MRI demonstrated that lesion perfusion is associated with its type, grade, histomorphology, and prognosis.1,2 Unfortunately, both standard and ultrafast DCE-MRI require injecting a gadolinium-based contrast agent, with all...
Gestational Weight Gain and Offspring Bone Mass: Different Associations in Heal...
Monjardino, Teresa; Henriques, Ana; Moreira, Carla; Rodrigues, Teresa; Adubeiro, Nuno; Nogueira, Luísa; Cooper, Cyrus; Santos, Ana CristinaWeight management strategies during pregnancy reduce child cardiometabolic risk. However, because maternal weight has an overall positive correlation with offspring bone mass, pregnancy weight management could adversely affect child bone health. We aimed to estimate associations between gestational weight gain (GWG) and bone mineralization in the offspring at 7 years of age, and test early pregnancy body mass i...
Diffusion-Weighted Breast Imaging: Beyond Morphology
Nogueira, Luísa; Nunes, Rita G.; Brandão, Sofia; Ramos, IsabelDiffusion-weighted imaging (DWI) is a magnetic resonance imaging (MRI) technique that explores the molecular diffusivity of water in biological tissues to probe its microstructure. Its application to the study of breast lesions has been shown to improve their detection, characterization, and the diagnostic accuracy of breast lesions using MRI. In this chapter, the biophysical basis of diffusion is presented, in...
Do bone mineral content and density determine fracture in children? A possible ...
Martins, Ana; Monjardino, Teresa; Nogueira, Luísa; Canhão, Helena; Lucas, RaquelBackgroundRelations between bone parameters, physical exertion, and childhood fractures are complex. We aimed to estimate the associations between fracture history and bone mineral content (BMC) and areal bone mineral density (aBMD) at 7 years of age, by levels of physical activity, as a proxy for trauma frequency.MethodsWe used data collected from 2,261 children of the Generation XXI birth cohort, assembled in...