MARCOS ROBERTO DE MENEZES

(Fonte: Lattes)
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Lattes
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Instituto de Radiologia, Hospital das Clínicas, Faculdade de Medicina

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  • article 5 Citação(ões) na Scopus
    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 Guido
    Whole-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
    Radiologia intervencionista
    (2019) SETUGUTI, Daniel Takeshi; URAKAWA, Felipe Shoiti; MENEZES, Marcos Roberto de
  • article 31 Citação(ões) na Scopus
    Diagnostic performance of magnetic resonance to assess treatment response after neoadjuvant therapy in patients with locally advanced rectal cancer
    (2019) NAHAS, Sergio Carlos; NAHAS, Caio Sergio Rizkallah; CAMA, Gerson Montoya; AZAMBUJA, Rodrigo Lautert de; HORVAT, Natally; MARQUES, Carlos Frederico Sparapan; MENEZES, Marcos Roberto; RIBEIRO JUNIOR, Ulysses; CECCONELLO, Ivan
    Purpose Our study aimed to evaluate the diagnostic performance of rectal magnetic resonance imaging (MRI) for local restaging in patients with non-metastatic locally advanced rectal cancer (LARC) after neoadjuvant chemoradiotherapy (CRT) using surgical histopathology of total mesorectal excision as the reference standard. Methods Ninety-five patients with LARC who underwent rectal MRI after CRT between January 2014 and December 2016 were included. Accuracy, sensitivity, specificity, positive, and negative predictive value for local staging regarding T-stage, N-stage, circumferential resection margin, and MRI tumor regression grade (ymriTRG) were calculated, and inter-test agreements were assessed. Results 22/95 (23.2%) patients had radiological complete response (rCR), whereas 20/95 (21.1%) had pathological complete response (pCR). Among the patients with pCR, 11/20 (55%) had rCR. Fair agreement was demonstrated between ymriTRG and pathological TRG (ypTRG) (kappa = 0.255). The sensitivity and specificity for detection of pCR were 61.1% (95% CI 35.7-82.7) and 89.6% (95% CI 80.6-95.4). For the detection of ypTRG grades 1 and 2, the corresponding values were 67.2% (95% CI 54.3-78.4) and 51.6 (95% CI 33.1-69.8). The accuracy of ymriTRG was 24.2% (95% CI 15.6-32.8). Inter-test agreement in TRG between MRI and pathology was overall fair (kappa = 0.255) and slight (kappa = 0.179), if TRG 1 + 2. ] Conclusion Qualitative assessment on MRI for diagnosing pCR showed moderate sensitivity and high specificity, whereas the diagnosis of TRG had moderate sensitivity and low specificity with slight to fair inter-test agreement when compared with pathological specimens.