40 documents found, page 1 of 4

Off-Label Use of Ultrasound Contrast Agents for Intravenous Applications in Chi...

OBJECTIVES: The purpose of this study was to collect and analyze the published data related to intravenous (IV) use of ultrasound (US) contrast agents in children. METHODS: We searched the literature to collect all of the published studies reporting the IV administration of a second-generation US contrast agent in children. RESULTS: We analyzed 9 case series and 5 case reports, as well as 5 individual cases, of...

Inflammatory Pseudotumor of the Urinary Bladder

We report a case of an inflammatory pseudotumor of the urinary bladder in a 31 year-old woman. She presented at the emergency room with low abdominal pain and urinary symptoms. Abdominal ultrasound, computed tomography and magnetic resonance imaging were performed and revealed asymmetric thickening of the urinary bladder wall. Cystoscopy with urinary cytology revealed a benign nature of the process. The patient...

Pancreatic Neuroendocrine Tumors: Correlation Between Histogram Analysis of App...

PURPOSE: To explore the role of histogram analysis of apparent diffusion coefficient (ADC) MRI maps based on entire tumor volume data in determining pancreatic neuroendocrine tumor (PNT) grade. METHODS AND MATERIALS: Retrospective evaluation of 22 patients with PNTs included low-grade (G1; n = 15), intermediate-grade (G2; n = 4), and high-grade (G3; n = 3) tumors. Regions of interest containing the lesion were ...

Doença inflamatória pélvica: o que o radiologista precisa saber?

O diagnóstico da doença inflamatória pélvica é clínico, baseando-se numa combinação de sintomas e sinais, que incluem dor pélvica e febre. A referenciação ao médico radiologista ocorre na fase aguda da doença, quando é necessário excluir diagnósticos diferenciais (ginecológicos, gastrointestinais ou urinários) ou em doentes que tiveram um episódio agudo prévio, por vezes assintomático, que recorrem ao médico as...

Selection of colon cancer patients for neoadjuvant chemotherapy based on optimi...

PURPOSE: Neoadjuvant chemotherapy (NACT) in potencially-resectable locally advanced colon cancer (LACC) is likely to prove superiority compared to standard treatment in the phase III FOXTROT Collaborative Group Trial. Thus, identification of LACC, defined as T3≥5 mm or T4, is fundamental and requires accurate noninvasive imaging. The value of optimized preoperative MDCT for that purpose is being assessed. METHO...

Inflammatory pseudotumor of the urinary bladder

We report a case of an inflammatory pseudotumor of the urinary bladder in a 31 year-old woman. She presented at the emergency room with low abdominal pain and urinary symptoms. Abdominal ultrasound, computed tomography and magnetic resonance imaging were performed and revealed asymmetric thickening of the urinary bladder wall. Cystoscopy with urinary cytology revealed a benign nature of the process. The patient...

Pancreatic neuroendocrine tumors: correlation between histogram analysis of app...

Purpose: To explore the role of histogram analysis of apparent diffusion coefficient (ADC) MRI maps based on entire tumor volume data in determining pancreatic neuroendocrine tumor (PNT) grade. Methods and Materials: Retrospective evaluation of 22 patients with PNTs included low-grade (G1; n = 15), intermediate-grade (G2; n = 4), and high-grade (G3; n = 3) tumors. Regions of interest containing the lesion were ...

Pitfalls em radiologia ginecológica

Para o diagnóstico radiológico das patologias ginecológicas é essencial conhecer e compreender as indicações dos vários exames disponíveis e, para cada achado radiológico, integrar a idade, o contexto clínico e a história pregressa da doente. A Ressonância Magnética (RM) tem hoje um papel crucial no diagnóstico das doenças ginecológicas. Contudo, para maximizar o potencial desta técnica é imprescindível adequar...

Varizes ganglionares: relevância clínica e implicações terapêuticas da detecção...

A junção safeno-femoral localiza-se no triângulo femoral, que é uma região rica em gânglios linfáticos. As veias ganglionares desta região estão interligadas entre si, formando uma extensa rede venosa, que comunica com o sistema venoso profundo e superficial. Em condições normais estes vasos não são visíveis por métodos de imagem. Contudo, esta rede venosa pode tornar-se dilatada e refluxiva, causando ou contri...

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