2003
DOI: 10.1590/s0100-39842003000600009
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O uso da ressonância magnética na investigação do câncer mamário

Abstract: Os métodos diagnósticos de imagem mamografia, ultra-sonografia e cintilografia são exames imprescindíveis no diagnóstico do câncer de mama e no acompanhamento após o procedimento cirúrgico, porém, todos apresentam limitações específicas. Atualmente, a ressonância magnética tem-se revelado um método diagnóstico promissor para avaliar mais detalhadamente lesões tumorais do parênquima mamário. Neste trabalho os autores descrevem as principais indicações e os achados da ressonância magnética no câncer de mama, bem… Show more

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Cited by 12 publications
(5 citation statements)
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References 21 publications
(48 reference statements)
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“…Such findings are hardly elucidated by mammography and US, possibly leading to unnecessary procedures. In such cases, the patients may benefit from breast MRI due the typical paramagnetic contrast uptake by the different breast tissues (15) . The presence of a noncontrast enhanced scar at MRI has a high negative predictive value for cancer recurrence.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Such findings are hardly elucidated by mammography and US, possibly leading to unnecessary procedures. In such cases, the patients may benefit from breast MRI due the typical paramagnetic contrast uptake by the different breast tissues (15) . The presence of a noncontrast enhanced scar at MRI has a high negative predictive value for cancer recurrence.…”
Section: Discussionmentioning
confidence: 99%
“…However, a normal increase in the vascularization may be observed in the surgical site up to 18 months following radiotherapy (16) . Several authors have also described the relevance of breast MRI in the preoperative staging, considering that such method is more sensitive than conventional imaging methods to evaluate the tumor extent, even in cases of ductal carcinoma in situ and invasive lobular carcinoma (15) . Additionally, MRI is highly sensitive in the detection of multifocal, multicentric and contralateral tumors (17) .…”
Section: Discussionmentioning
confidence: 99%
“…O substrato fisiopatológico para sustentar esta afirmação está relacionado ao fato de que carcinomas com dimensões maiores que 3 mm secretam fatores angiogênicos, com formação de neovascularização e anastomoses arteriovenosas. Este processo resulta em um acúmulo mais rápido de contraste em cânceres do que lesões benignas (3,(5)(6)(7)14) .…”
Section: Uso De Contraste Paramagnéticounclassified
“…According to Alvares and Michell (2003), diagnostic imaging methods such as mammography, ultrasound and scintigraphy are essential tests in the diagnosis of breast cancer and in the follow-up after the surgical procedure, however, all of them have specific limitations.…”
Section: Introductionmentioning
confidence: 99%