JOSE CLAUDIO MENEGHETTI

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Instituto do Coração, Hospital das Clínicas, Faculdade de Medicina

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  • article 59 Citação(ões) na Scopus
    Combined PET and Biopsy Evidence of Marrow Involvement Improves Prognostic Prediction in Diffuse Large B-Cell Lymphoma
    (2014) CEREI, Juliano J.; GYORKE, Tamas; FANTI, Stefano; PAEZ, Diana; MENEGHETTI, Jose Claudio; REDONDO, Francisca; CELLI, Monica; AUEWARAKUL, Chirayu; RANGARAJAN, Venkatesh; GUJRAL, Sumeet; GOROSPE, Charity; CAMPO, Maejoy V.; CHUNG, June-Key; MORRIS, Tim P.; DONDI, Maurizio; CARR, Robert
    Bone marrow is an important extranodal site in diffuse large B-cell lymphoma (DLBCL), and marrow histology has been incorporated into the new National Comprehensive Cancer Network international prognostic index. Marrow involvement demonstrated histologically confers poor prognosis but is identified by staging PET in more cases. How information from staging PET and biopsy should be combined to optimize outcome prediction remains unclear. Methods: The International Atomic Energy Agency sponsored a prospective international cohort study to better define the use of PET in DLBCL. As a planned subsidiary analysis, we examined the interplay of marrow involvement identified by PET and biopsy on clinical outcomes. Results: Eight countries contributed 327 cases with a median follow-up of 35 mo. The 2-y outcomes of cases with no evidence of marrow involvement (n = 231) were 81% (95% confidence interval [Cl], 76%-86%) for event-free survival (EFS) and 88% (83%-91%) for overall survival (OS); cases identified only on PET (n = 61), 81% (69%-89%) for EFS and 88% (77%-94%) for OS; cases indentified only on biopsy (n = 10), 80% (41%-95%) for EFS and 100% for OS; or cases identified by both PET and biopsy (n = 25), 45% (25%-64%) for EFS and 55% (32%-73%) for OS. The hazard ratios for PET-negative/biopsy-negative cases versus PET-positive/biopsy-positive cases were 2.67 (95% Cl, 1.48-4.79) for EFS and 3.94 (1.93-8.06) for OS. Conclusion: This large study demonstrates that positive iliac crest biopsy histology only confers poor prognosis for patients who also have abnormal marrow F-18-FDG uptake identified on the staging PET scan. Abnormal F-18-FDG uptake in marrow, when iliac crest biopsy histology is normal, has no adverse effect on outcomes.
  • article 5 Citação(ões) na Scopus
    Directional analysis of cardiac motion field from gated fluorodeoxyglucose PET images using the Discrete Helmholtz Hodge Decomposition
    (2018) SIMS, J. A.; GIORGI, M. C.; OLIVEIRA, M. A.; MENEGHETTI, J. C.; GUTIERREZ, M. A.
    Objectives: Extract directional information related to left ventricular (LV) rotation and torsion from a 4D PET motion field using the Discrete Helmholtz Hodge Decomposition (DHHD). Materials and methods: Synthetic motion fields were created using superposition of rotational and radial field components and cardiac fields produced using optical flow from a control and patient image. These were decomposed into curl-free (CF) and divergence-free (DF) components using the DHHD. Results: Synthetic radial components were present in the CF field and synthetic rotational components in the DF field, with each retaining its center position, direction of motion and diameter after decomposition. Direction of rotation at apex and base for the control field were in opposite directions during systole, reversing during diastole. The patient DF field had little overall rotation with several small rotators. Conclusions: The decomposition of the LV motion field into directional components could assist quantification of LV torsion, but further processing stages seem necessary.
  • conferenceObject
    A decrease in glycolytic metabolism in noncompaction cardiomyopathy - Insights into pathophysiological mechanisms
    (2016) MELO, M. Dantas Tavares De; GIORGI, M. Clementina; DANTAS JUNIOR, R. Nery; LIMA, C. Rocon De; PARGA FILHO, J. Roberto; SOARES JUNIOR, J.; MENEGHETTI, J. Claudio; BIERRENBACH, A. Luiza; BOCCHI, E. Alcides; SALEMI, V. M. C.
  • article 6 Citação(ões) na Scopus
    Myocardial perfusion in patients with suspected coronary artery disease: comparison between 320-MDCT and rubidium-82 PET
    (2018) DANTAS JR., Roberto Nery; ASSUNCAO JR., Antonildes Nascimento; MARQUES FILHO, Ismar Aguiar; FAHEL, Mateus Guimaraes; NOMURA, Cesar Higa; AVILA, Luiz Francisco Rodrigues; GIORGI, Maria Clementina Pinto; SOARES JR., Jose; MENEGHETTI, Jose Claudio; PARGA, Jose Rodrigues
    Despite advances in non-invasive myocardial perfusion imaging (MPI) evaluation, computed tomography (CT) multiphase MPI protocols have not yet been compared with the highly accurate rubidium-82 positron emission tomography ((RbPET)-Rb-82) MPI. Thus, this study aimed to evaluate agreement between (RbPET)-Rb-82 and 320-detector row CT (320-CT) MPI using a multiphase protocol in suspected CAD patients. Forty-four patients referred for MPI evaluation were prospectively enrolled and underwent dipyridamole stress (RbPET)-Rb-82 and multiphase 320-CT MPI (five consecutive volumetric acquisitions during stress). Statistical analyses were performed using the R software. There was high agreement for recognizing summed stress scores 4 (kappa 0.77, 95% CI 0.55-0.98, p < 0.001) and moderate for detecting SDS 2 (kappa 0.51, 95% CI 0.23-0.80, p < 0.001). In a per segment analysis, agreement was high for the presence of perfusion defects during stress and rest (kappa 0.75 and 0.82, respectively) and was moderate for impairment severity (kappa 0.58 and 0.65, respectively). The 320-CT protocol was safe, with low radiation burden (9.3 +/- 2.4 mSv). There was a significant agreement between dipyridamole stress 320-CT MPI and (RbPET)-Rb-82 MPI in the evaluation of suspected CAD patients of intermediate risk. The multiphase 320-CT MPI protocol was feasible, diagnostic and with relatively low radiation exposure. aEuro cent Rubidium-82 PET and 320-MDCT can perform MPI studies for CAD investigation. aEuro cent There is high agreement between rubidium-82 PET and 320-MDCT for MPI assessment. aEuro cent Multiphase CT perfusion protocols are feasible and with low radiation. aEuro cent Multiphase CT perfusion protocols can identify image artefacts.
  • conferenceObject
    18F-FDG PET/CT Findings vs. Histology of Surgically Resected Cardiac Valves in Patients With Infective Endocarditis.
    (2018) CAMARGO, Raphael A.; CASTELLI, Jussara B.; BITTENCOURT, Marcio S.; AYABE, Daniel; PAIXAO, Milena R.; FELICIO, Marilia F.; SOEIRO, Alexandre M.; GONCALVES, Luis Fernando T.; V, Tania Strabelli; SOARES JR., Jose; BUCHPIGUEL, Carlos A.; MANSUR, Alfredo J.; TARASOUTCHI, Flavio; OLIVEIRA JR., Mucio T.; MENEGHETTI, Claudio; GUALANDRO, Daniele M.; POCEBON, Lucas; BLANKSTEIN, Ron; ALAVI, Abass; SICILIANO, Rinaldo F.
  • bookPart
  • article 6 Citação(ões) na Scopus
    A tomografia por emissão de pósitrons com 2-[18F]-fluoro-2-desoxi-D-glicose é custo-efetiva em pacientes com câncer de pulmão não pequenas células no Brasil
    (2012) CERCI, Juliano Julio; TAKAGAKI, Teresa Yae; TRINDADE, Evelinda; MORGADO, Roberta; MORABITO, Fausto; MUSOLINO, Rafael Silva; SOARES JUNIOR, José; MENEGHETTI, José Cláudio
    OBJECTIVE: To evaluate the accuracy and cost-effectiveness of metabolic staging (MS) with FDG-PET as compared with the conventional staging (CS) strategy in the preoperative staging of non-small cell lung cancer (NSCLC). MATERIALS AND METHODS: A total of 95 patients with initial diagnosis of NSCLC were staged before undergoing treatment. The MS and CS results were compared with regard to treatment definition and incidence of futile thoracotomies with both strategies. RESULTS: Metabolic staging with FDG-PET upstaged 48.4% and downstaged 5.3% of the patients, and would lead to change in the treatment of 41% of cases. Thoracotomy was considered as futile in 47% of the patients with CS, and in 19% of the patients with MS. The cost of futile thoracotomies in eight patients with MS was R$ 79,720, while in 31 patients with CS it would be R$ 308,915. Just such saving in costs would be more than enough to cover the costs of all FDG-PETs (R$ 126,350) or FDG-PET/CTs (R$ 193,515) for the 95 patients. CONCLUSION: The metabolic staging with FDG-PET is more accurate than CS in patients with NSCLC. Both FDG-PET and FDG-PET/CT are cost-effective methods and their utilization is economically justifiable in the Brazilian public health system.
  • bookPart
    Inflamação e infecção cardiovasculares
    (2017) MENEGHETTI, José Cláudio; JúNIOR, José Soares; IZAKI, Marisa; GIORGI, Maria Clementina P.
  • article 6 Citação(ões) na Scopus
    Myocardial blood flow assessment with (82)rubidium-PET imaging in patients with left bundle branch block
    (2015) FALCAO, Andrea; CHALELA, William; GIORGI, Maria Clementina; IMADA, Rodrigo; SOARES JR., Jose; VAL, Renata Do; OLIVEIRA, Marco Antonio; IZAKI, Marisa; KALIL FILHO, Roberto; MENEGHETTI, Jose C.
    OBJECTIVES: Perfusion abnormalities are frequently seen in Single Photon Emission Computed Tomography (SPECT) when a left bundle branch block is present. A few studies have shown decreased coronary flow reserve in the left anterior descending territory, regardless of the presence of coronary artery disease. OBJECTIVE: We sought to investigate rubidium-82 (Rb-82) positron emission tomography imaging in the assessment of myocardial blood flow and coronary flow reserve in patients with left bundle branch block. METHODS: Thirty-eight patients with left bundle branch block (GI), median age 63.5 years, 22 (58%) female, 12 with coronary artery disease (>= 70%; GI-A) and 26 with no evidence of significant coronary artery disease (GI-B), underwent rest-dipyridamole stress Rb-82-positron emission tomography with absolute quantitative flow measurements using Cedars-Sinai software (mL/min/g). The relative myocardial perfusion and left ventricular ejection fraction were assessed in 17 segments. These parameters were compared with those obtained from 30 patients with normal (82) Rb-positron emission tomography studies and without left bundle branch block (GII). RESULTS: Stress myocardial blood flow and coronary flow reserve were significantly lower in GI than in GII (p<0.05). The comparison of coronary flow reserve between GI-A and GI-B showed that it was different from the global coronary flow reserve (p<0.05) and the stress flow was significantly lower in the anterior than in the septal wall for both groups. Perfusion abnormalities were more prevalent in GI-A (p=0.06) and the left ventricular ejection fraction was not different between GI-A and GI-B, whereas it was lower in GI than in GII (p<0.001). CONCLUSION: The data confirm that patients with left bundle branch block had decreased myocardial blood flow and coronary flow reserve and coronary flow reserve assessed by Rb-82-positron emission tomography imaging may be useful in identifying coronary artery disease in patients with left bundle branch block.
  • article 33 Citação(ões) na Scopus
    Diretrizes da Sociedade Brasileira de Cardiologia sobre Angina Instável e Infarto Agudo do Miocárdio sem Supradesnível do Segmento ST (II Edição, 2007) - Atualização 2013/2014
    (2014) NICOLAU, JC; TIMERMAN, A; MARIN-NETO, JA; PIEGAS, LS; BARBOSA, CJDG; FRANCI, A; AVEZUM JR., A; CARVALHO, ACC; MARKMAN FILHO, B; POLANCZYK, CA; ROCHITTE, CE; SERRANO JÚNIOR, CV; PRECOMA, DB; SILVA JUNIOR, DG; ALBUQUERQUE, DC; STEFANINI, E; KNOBEL, E; JATENE, FB; FERES, F; MORCERF, FAP; GANEM, F; LIMA FILHO, FA; FEITOSA FILHO, GS; FERREIRA, JFM; MENEGHETTI, JC; SARAIVA, JFK; SILVA, LS; MAIA, LN; BARACIOLI, LM; LISBOA, LAF; DALLAN, LAO; BODANESE, LC; ANDRADE, MD; OLIVEIRA JÚNIOR, M; DUTRA, OP; COELHO, OR; LEÃES, PE; ALBUQUERQUE, PF; LEMOS, P; KALIL, R; COSTA, RVC; ESPORCATE, R; MARINO, RL; BOTELLHO, RV; MENEGHELO, RS; SPROVIERI, SR; TIMERMAN, S; MATHIAS JÚNIOR, W