MARCOS ROBERTO DE MENEZES
Projetos de Pesquisa
Unidades Organizacionais
Instituto de Radiologia, Hospital das Clínicas, Faculdade de Medicina
3 resultados
Resultados de Busca
Agora exibindo 1 - 3 de 3
- 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
- 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.
- Local-Regional Treatment of Hepatocellular Carcinoma: A Primer for Radiologists(2022) HORVAT, Natally; OLIVEIRA, Ana I. De; OLIVEIRA, Brunna Clemente De; ARAUJO-FILHO, Jose A. B.; HOMSI, Maria El; ELSAKKA, Ahmed; BAJWA, Raazi; MARTINS, Guilherme L. P.; ELSAYES, Khaled M.; MENEZES, Marcos R.The treatment planning for patients with hepatocellular carcinoma (HCC) relies predominantly on tumor burden, clinical perfor-mance, and liver function test results. Curative treatments such as resection, liver transplantation, and ablative therapies of small lesions should be considered for all patients with HCC. However, many patients are ineligible for these treatments owing to advanced disease stage and comorbidities. Despite efforts to increase screen-ing, early-stage HCC remains difficult to diagnose, which decreases the possibility of curative therapies. In this context, local-regional treatment of HCC is accepted as a form of curative therapy in selected patients with early-stage disease, as a therapeutic option in patients who are not eligible to undergo curative therapies, as a downstaging approach to decrease tumor size toward meeting the criteria for liver transplantation, and as a bridging therapy to avoid tumor growth while the patient is on the waiting list for liver trans-plantation. The authors review the indications, types, mechanism of action, and possible complications of local-regional treatment, as well as the expected postprocedural imaging features of HCC. Furthermore, they discuss the role of imaging in pre-and post-procedural settings, provide guidance on how to assess treatment response, and review the current limitations of imaging assessment. Finally, the authors summarize the potential future directions with imaging tools that may add value to contemporary practice at re-sponse assessment and imaging biomarkers for patient selection, treatment response, and prognosis.