MARCOS ROBERTO DE MENEZES
Projetos de Pesquisa
Unidades Organizacionais
Instituto de Radiologia, Hospital das Clínicas, Faculdade de Medicina
15 resultados
Resultados de Busca
Agora exibindo 1 - 10 de 15
- Image-guided lymph node core needle biopsy in mycosis fungoides/Sezary syndrome: Direct comparison to surgical excision(2022) CURY-MARTINS, Jade; COUTO NETTO, Sergio Dias do; CASTRO, Stephanie Catarine Carqueijo de; SIQUEIRA, Sheila Aparecida Coelho; GIANNOTTI, Marcelo Abrantes; ZERBINI, Maria Claudia Nogueira; PEREIRA, Juliana; CULLER, Hebert; TEIXEIRA JR., Frederico Jose Ribeiro; MENEZES, Marcos Roberto de; SANCHES, Jose Antonio
- Sclerotic Vertebral Metastases: Pain Palliation Using Percutaneous Image-Guided Cryoablation(2011) FREITAS, Ricardo Miguel Costa de; MENEZES, Marcos Roberto de; CERRI, Giovanni Guido; GANGI, AfshinCryoablative therapies have been proposed to palliate pain from soft-tissue or osteolytic bone tumors. A case of a patient with painful thoracic and sacral spine sclerotic metastases successfully treated by image-guided percutaneous cryoablation with the aid of insulation techniques and thermosensors is reported in this case report.
- Safety and feasibility of radiofrequency ablation for treatment of Bosniak IV renal cysts(2016) MENEZES, Marcos Roberto de; VIANA, Publio Cesar Cavalcante; YAMANARI, Tassia Regina; REIS, Leonardo Oliveira; NAHAS, WilliamPurpose: To describe our initial experience with radiofrequency ablation (RFA) of Bosniak IV renal cysts. Materials and Methods: From 2010 to 2014, 154 renal tumor cases were treated with percutaneous thermal ablation, of which 10 cases (6.4%) from nine patients were complex renal cysts and were treated with radiofrequency ablation. Results: All complex cysts were classified as Bosniak IV (four women and five men; mean age: 63.6 yrs, range: 33-83 years). One patient had a single kidney. Lesion size ranged from 1.5 to 4.1cm (mean: 2.5cm) and biopsy was performed on four cysts immediately before the procedure, all of which were malignant (two clear cell and two papillary carcinoma). Mean volume reduction of complex cysts was 25% (range: 10-40%). No patients required retreatment with RFA and no immediate or late complications were observed. The follow-up of Bosniak IV cysts had a median of 27 months (interquartile range [IQR], 23 to 38) and no recurrence or significant loss of renal function were observed. Conclusions: Mid-term follow-up of the cases in our database suggests that image-guided percutaneous RFA can treat Bosniak IV cysts with very low complication rates and satisfactorily maintain renal function.
- Diagnostic Yield of Computed Tomography-Guided Procedures for Spondylodiscitis(2022) PAZINATO, Lucas Vatanabe; URAKAWA, Felipe Shoiti; SETUGUTI, Daniel Takeshi; MOTTA-LEAL-FILHO, Joaquim Mauricio da; MENEZES, Marcos Roberto dePurpose To identify the diagnostic yield and predictive factors for microbiological diagnosis in patients with spondylodiscitis through computed tomography (CT)-guided biopsy or aspiration. Materials and methods A retrospective review of 102 patients with suspected spondylodiscitis who underwent CT-guided procedures in an 8-year period was conducted. Analyzed variables were demographic data, C-reactive protein, pre-biopsy MRI findings, prior antibiotic use, site of biopsy/aspiration, histopathological findings, culture results and radiation dose. Results The culture yield among all sites was 56%, 85.6% for paravertebral/discal fluid aspiration, 66.7% for disk-only biopsy, 52.9% for paravertebral soft tissue biopsy, and 39.6% for endplate bone-disk unit. Patients with paravertebral/disk collection on MRI had better yields when submitted to fluid aspiration instead of biopsy of other sites (78.9% vs. 36.6%; p = 0,006). Pyogenic etiology corresponded to 68.3% of cases and Staphylococcus aureus was the most common agent. Prior antibiotics exposure was associated with a lower yield (66.2% vs. 40.9%, p = 0,016). Conclusions CT-guided procedures are safe and well-tolerated in patients with suspected spondylodiscitis, with good microbiologic yield particularly in the presence of paravertebral/discal abscess.
- Whole-Body Magnetic Resonance Imaging in the Oncology Setting: An Overview and Update on Recent Advances(2019) BEZERRA, Regis Otaviano Franca; RECCHIMUZZI, Debora Zachello; MOTA, Micaela Maciel dos Santos; GARCIA, Marcio Ricardo Taveira; MENEZES, Marcos Roberto de; MAZO, Paulo Eduardo; CERRI, Giovanni GuidoWhole-body magnetic resonance imaging is becoming an important tool in oncology as a nonirradiating imaging technique since recent technological advances allowed the incorporation of high-quality imaging in an adequate time. Moreover, the noninjection of radioisotope/intravenous contrast, low cost compared with traditional nuclear medicine techniques, and fast acquisition times are another distinct feature. Thus, the purpose of this article is to review the whole-body magnetic resonance imaging protocol and its main applications in the oncology setting.
bookPart Intervenções percutâneas e o trato gastrointestinal(2017) MENEZES, Marcos Roberto de; URAKAWA, Felipe Shoiti; ROVELLA, Marcelo Siveira- F-18-FDG PET/CT Osteometabolic Activity in Metastatic Parathyroid Carcinoma(2016) VALE, Romulo Hermeto Bueno do; QUEIROZ, Marcelo Araujo; COUTINHO, Artur Martins Novaes; BUCHPIGUEL, Carlos Alberto; MENEZES, Marcos Roberto deParathyroid cancer is an uncommon type of malignancy, which is frequently associated with poor prognosis. Clinical manifestations are caused by elevated serum calcium and parathyroid hormone (PTH). Diagnostic imaging studies as neck ultrasonography, technetium Tc Tc-99m-sestamibi whole body scintigraphy, CT, and MR are already established tools for this malignancy. Nevertheless, the role of F-18-FDG PET/CT remains unknown in this scenario, with few published studies in literature. Hence, in this article, we aimed to report an illustrative case of increased skeletal FDG uptake associated with high calcium and PTH levels.
bookPart Métodos radiológicos(2013) COSTA, Daniel Nóbrega da Costa; PINHO, Marco da Cunha; GARCIA, Marcio Ricardo Taveira; BEZERRA, Regis Otaviano França; GARCIA, Rodrigo Gobbo; JULIO, Thiago; SUGUINO, Silvio; MARCELINO, Antônio Sergio Zafred; CHALA, Luciano Fernandes; BARROS, Nestor de; MENEZES, Marcos Roberto de; CERRI, Giovanni Guido- Long-term Results after CT-Guided Percutaneous Ethanol Ablation for the Treatment of Hyperfunctioning Adrenal Disorders(2016) FRENK, Nathan Elie; SEBASTIANES, Fernando; LERARIO, Antonio Marcondes; FRAGOSO, Maria Candida Barisson Villares; MENDONCA, Berenice Bilharinho; MENEZES, Marcos Roberto deOBJECTIVES: To evaluate the safety and long-term efficacy of computed tomography-guided percutaneous ethanol ablation for benign primary and secondary hyperfunctioning adrenal disorders. METHOD: We retrospectively evaluated the long-term results of nine patients treated with computed tomography-guided percutaneous ethanol ablation: eight subjects who presented with primary adrenal disorders, such as pheochromocytoma, primary macronodular adrenal hyperplasia and aldosterone producing adenoma, and one subject with Cushing disease refractory to conventional treatment. Eleven sessions were performed for the nine patients. The patient data were reviewed for the clinical outcome and procedure-related complications over ten years. RESULTS: Patients with aldosterone-producing adenoma had clinical improvement: symptoms recurred in one case 96 months after ethanol ablation, and the other patient was still in remission 110 months later. All patients with pheochromocytoma had clinical improvement but were eventually submitted to surgery for complete remission. No significant clinical improvement was seen in patients with hypercortisolism due to primary macronodular adrenal hyperplasia or Cushing disease. Major complications were seen in five of the eleven procedures and included cardiovascular instability and myocardial infarction. Minor complications attributed to sedation were seen in two patients. CONCLUSION: Computed tomography-guided ethanol ablation does not appear to be suitable for the long-term treatment of hyperfunctioning adrenal disorders and is not without risks.
- Magnetic resonance imaging of the vagina: an overview for radiologists with emphasis on clinical decision making(2015) FERREIRA, Daian Miranda; BEZERRA, Régis Otaviano França; ORTEGA, Cinthia Denise; BLASBALG, Roberto; VIANA, Públio César Cavalcante; MENEZES, Marcos Roberto de; ROCHA, Manoel de SouzaAbstract: Magnetic resonance imaging is a method with high contrast resolution widely used in the assessment of pelvic gynecological diseases. However, the potential of such method to diagnose vaginal lesions is still underestimated, probably due to the scarce literature approaching the theme, the poor familiarity of radiologists with vaginal diseases, some of them relatively rare, and to the many peculiarities involved in the assessment of the vagina. Thus, the authors illustrate the role of magnetic resonance imaging in the evaluation of vaginal diseases and the main relevant findings to be considered in the clinical decision making process.