CARLOS EDUARDO ROCHITTE
Projetos de Pesquisa
Unidades Organizacionais
Instituto do Coração, Hospital das Clínicas, Faculdade de Medicina - Médico
LIM/64, Hospital das Clínicas, Faculdade de Medicina - Líder
LIM/64, Hospital das Clínicas, Faculdade de Medicina - Líder
32 resultados
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- Coronary Artery Stenoses: Accuracy of 64-Detector Row CT Angiography in Segments with Mild, Moderate, or Severe Calcification-A Subanalysis of the CORE-64 Trial(2011) VAVERE, Andrea L.; ARBAB-ZADEH, Armin; ROCHITTE, Carlos E.; DEWEY, Marc; NIINUMA, Hiroyuki; GOTTLIEB, Ilan; CLOUSE, Melvin E.; BUSH, David E.; HOE, John W. M.; ROOS, Albert de; COX, Christopher; LIMA, Joao A. C.; MILLER, Julie M.Purpose: To evaluate the influence of cross-sectional arc calcification on the diagnostic accuracy of computed tomography (CT) angiography compared with conventional coronary angiography for the detection of obstructive coronary artery disease (CAD). Materials and Methods: Institutional Review Board approval and written informed consent were obtained from all centers and participants for this HIPAA-compliant study. Overall, 4511 segments from 371 symptomatic patients (279 men, 92 women; median age, 61 years [interquartile range, 53-67 years]) with clinical suspicion of CAD from the CORE-64 multi-center study were included in the analysis. Two independent blinded observers evaluated the percentage of diameter stenosis and the circumferential extent of calcium (arc calcium). The accuracy of quantitative multidetector CT angiography to depict substantial (>50%) stenoses was assessed by using quantitative coronary angiography (QCA). Cross-sectional arc calcium was rated on a segment level as follows: noncalcified or mild (<90 degrees), moderate (90 degrees-180 degrees), or severe (>180 degrees) calcification. Univariable and multivariable logistic regression, receiver operation characteristic curve, and clustering methods were used for statistical analyses. Results: A total of 1099 segments had mild calcification, 503 had moderate calcification, 338 had severe calcification, and 2571 segments were noncalcified. Calcified segments were highly associated (P < .001) with disagreement between CTA and QCA in multivariable analysis after controlling for sex, age, heart rate, and image quality. The prevalence of CAD was 5.4% in noncalcified segments, 15.0% in mildly calcified segments, 27.0% in moderately calcified segments, and 43.0% in severely calcified segments. A significant difference was found in area under the receiver operating characteristic curves (noncalcified: 0.86, mildly calcified: 0.85, moderately calcified: 0.82, severely calcified: 0.81; P < .05). Conclusion: In a symptomatic patient population, segment-based coronary artery calcification significantly decreased agreement between multidetector CT angiography and QCA to detect a coronary stenosis of at least 50%.
- Comparative Effectiveness of CT-Derived Atherosclerotic Plaque Metrics for Predicting Myocardial Ischemia(2019) BAKHSHI, Hooman; MEYGHANI, Zahra; KISHI, Satoru; MAGALHAES, Tiago A.; VAVERE, Andrea; KITSLAAR, Pieter H.; GEORGE, Richard T.; NIINUMA, Hiroyuki; REIBER, Johan H. C.; BETOKO, Aisha; MATHESON, Matthew; ROCHITTE, Carlos E.; CARLI, Marcelo F. Di; COX, Christopher; LIMA, Joao A. C.; ARBAB-ZADEH, ArminOBJECTIVES This study sought to investigate the performance of various cardiac computed tomography (CT)-derived atherosclerotic plaque metrics for predicting provocable myocardial ischemia. BACKGROUND The association of coronary arterial diameter stenosis with myocardial ischemia is only modest, but cardiac CT provides several other, readily available atherosclerosis metrics, which may have incremental value. METHODS The study analyzed 873 nonstented coronary arteries and their myocardial perfusion territories in 356 patients (mean 62 years of age) enrolled in the CORE320 (Coronary Artery Evaluation using 320-row Multidetector Computed Tomography Angiography and Myocardial Perfusion) study. Myocardial perfusion defects in static CT perfusion imaging were graded at rest and after adenosine in 13 myocardial segments using a 4-point scale. The summed difference score was calculated by subtracting the summed rest score from the summed stress score. Reversible ischemia was defined as summed difference score >= 1. In a sensitivity analysis, results were also provided using single-photon emission computed tomography (SPECT) as the reference standard. Vessel based predictor variables included maximum percent diameter stenosis, lesion length, coronary calcium score, maximum cross-sectional calcium arc, percent atheroma volume (PAV), low-attenuation atheroma volume, positive (external) vascular remodeling, and subjective impression of ""vulnerable plaque."" The study used logistic regression models to assess the association of plaque metrics with myocardial ischemia. RESULTS In univariate analysis, all plaque metrics were associated with reversible ischemia. In the adjusted logistic model, only maximum percent diameter stenosis (1.26; 95% confidence interval: 1.15 to 1.38) remained an independent predictor. With SPECT as outcome variable, PAV and ""vulnerable"" plaque remained predictive after adjustment. In vessels with intermediate stenosis (40% to 70%), no single metric had clinically meaningful incremental value. CONCLUSIONS Various plaque metrics obtained by cardiac CT predict provocable myocardial ischemia by CT perfusion imaging through their association with maximum percent stenosis, while none had significant incremental value. With SPECT as reference standard, PAV and ""vulnerable plaque"" remained predictors of ischemia after adjustment but the predictive value added to stenosis assessment alone was small. (C) 2019 by the American College of Cardiology Foundation.
- Prognostic Value of Combined CT Angiography and Myocardial Perfusion Imaging versus Invasive Coronary Angiography and Nuclear Stress Perfusion Imaging in the Prediction of Major Adverse Cardiovascular Events: The CORE320 Multicenter Study(2017) CHEN, Marcus Y.; ROCHITTE, Carlos E.; ARBAB-ZADEH, Armin; DEWEY, Marc; GEORGE, Richard T.; MILLER, Julie M.; NIINUMA, Hiroyuki; YOSHIOKA, Kunihiro; KITAGAWA, Kakuya; SAKUMA, Hajime; LAHAM, Roger; VAVERE, Andrea L.; CERCI, Rodrigo J.; MEHRA, Vishal C.; NOMURA, Cesar; KOFOED, Klaus F.; JINZAKI, Masahiro; KURIBAYASHI, Sachio; SCHOLTE, Arthur J.; LAULE, Michael; TAN, Swee Yaw; HOE, John; PAUL, Narinder; RYBICKI, Frank J.; BRINKER, Jeffrey A.; ARAI, Andrew E.; MATHESON, Matthew B.; COX, Christopher; CLOUSE, Melvin E.; CARLI, Marcelo F. Di; LIMA, Joao A. C.Purpose: To compare the prognostic importance (time to major adverse cardiovascular event [MACE]) of combined computed tomography (CT) angiography and CT myocardial stress perfusion imaging with that of combined invasive coronary angiography (ICA) and stress single photon emission CT myocardial perfusion imaging. Materials and Methods: This study was approved by all institutional review boards, and written informed consent was obtained. Between November 2009 and July 2011, 381 participants clinically referred for ICA and aged 45-85 years were enrolled in the Combined Noninvasive Coronary Angiography and Myocardial Perfusion Imaging Using 320-Detector Row Computed Tomography (CORE320) prospective multicenter diagnostic study. All images were analyzed in blinded independent core laboratories, and a panel of physicians adjudicated all adverse events. MACE was defined as revascularization (>.30 days after index ICA), myocardial infarction, or cardiac death; hospitalization for chest pain or congestive heart failure; or arrhythmia. Late MACE was defined similarly, except for patients who underwent revascularization within the first 182 days after ICA, who were excluded. Comparisons of 2-year survival (time to MACE) used standard Kaplan- Meier curves and restricted mean survival times bootstrapped with 2000 replicates. Results: An MACE (49 revascularizations, five myocardial infarctions, one cardiac death, nine hospitalizations for chest pain or congestive heart failure, and one arrhythmia) occurred in 51 of 379 patients (13.5%). The 2-year MACE-free rates for combined CT angiography and CT perfusion findings were 94% negative for coronary artery disease (CAD) versus 82% positive for CAD and were similar to combined ICA and single photon emission CT findings (93% negative for CAD vs 77% positive for CAD, P < .001 for both). Event-free rates for CT angiography and CT perfusion versus ICA and single photon emission CT for either positive or negative results were not significantly different for MACE or late MACE (P > .05 for all). The area under the receiver operating characteristic curve (AUC) for combined CT angiography and CT perfusion (AUC = 68; 95% confidence interval [CI]: 62, 75) was similar (P = .36) to that for combined ICA and single photon emission CT (AUC = 71; 95% CI: 65, 79) in the identification of MACE at 2-year follow-up. Conclusion: Combined CT angiography and CT perfusion enables similar prediction of 2-year MACE, late MACE, and event-free survival similar to that enabled by ICA and single photon emission CT. (C) RSNA, 2017
- Predicting Significant Coronary Obstruction in a Population with Suspected Coronary Disease and Absence of Coronary Calcium: CORE-64 / CORE320 Studies(2023) ARMSTRONG, Anderson C.; CERCI, Rodrigo; MATHESON, Matthew B.; MAGALHAES, Tiago; KISHI, Satoru; BRINKER, Jeff; CLOUSE, Melvin E.; ROCHITTE, Carlos E.; COX, Christopher; LIMA, Joao A. C.; ARBAB-ZADEH, ArminBackground: Coronary artery calcium (CAC) scanning can be performed using non-contrast computed tomography to predict cardiovascular events, but has less value for risk stratification in symptomatic patients. Objective: To identify and validate predictors of significant coronary obstruction (SCO) in symptomatic patients without coronary artery calcification. Methods: A total of 4,258 participants were screened from the CORE64 and CORE320 studies that enrolled patients referred for invasive angiography, and from the Quanta Registry that included patients referred for coronary computed tomography angiography (CTA). Logistic regression models evaluated associations between cardiovascular risk factors, CAC, and SCO. An algorithm to assess the risk of SCO was proposed for patients without CAC. Significance level of 5% was used in the analyses. Results: Of the 509 participants of the CORE study, 117 (23%) had zero coronary calcium score; 13 (11%) patients without CAC had SCO. Zero calcium score was related to younger age, female gender, lower body mass index, no diabetes, and no dyslipidemia. Being a current smoker increased similar to 3.5 fold the probability of SCO and other CV risk factors were not significantly associated. Considering the clinical findings, an algorithm to further stratify zero calcium score patients was proposed and had a limited performance in the validation cohort (AUC 58; 95%CI 43, 72). Conclusion: A lower cardiovascular risk profile is associated with zero calcium score in a setting of high-risk patients. Smoking is the strongest predictor of SCO in patients without CAC.
- Perivascular fat attenuation for predicting adverse cardiac events in stable patients undergoing invasive coronary angiography(2022) CHATTERJEE, Devina; SHOU, Benjamin L.; MATHESON, Matthew B.; OSTOVANEH, Mohammad R.; ROCHITTE, Carlos; CHEN, Marcus Y.; DEWEY, Marc; ORTMAN, Jason; COX, Christopher; LIMA, Joao A. C.; ARBAB-ZADEH, ArminBackground: Inflammation surrounding the coronary arteries can be non-invasively assessed using pericoronary adipose tissue attenuation (PCAT). While PCAT holds promise for further risk stratification of patients with low coronary artery disease (CAD) prevalence, its value in higher risk populations remains unknown. Methods: CORE320 enrolled patients referred for invasive coronary angiography with known or suspected CAD. Coronary computed tomography angiography (CCTA) images were collected for 381 patients for whom clinical outcomes were assessed 5 years after enrollment. Using semi-automated image analysis software, PCAT was obtained and normalized for the right coronary (RCA), left anterior descending (LAD), and left circumflex arteries (LCx). The association between PCAT and major adverse cardiovascular events (MACE) during follow up was assessed using Cox regression models. Results: Thirty-seven patients were excluded due to technical failure. For the remaining 344 patients, median age was 62 (interquartile range, 55-68) with 59% having >= 1 coronary artery stenosis of >= 50% by quantitative coronary angiography. Mean attenuation values for PCAT in RCA, LAD, and LCx were-74.9,-74.2, and-71.2, respectively. Hazard ratios and 95% confidence intervals (CI) for normalized PCAT in the RCA, LAD, and LCx for MACE were 0.96 (CI: 0.75-1.22, p = 0.71), 1.31 (95% CI: 0.96-1.78, p = 0.09), and 0.98 (95% CI: 0.78-1.22, p = 0.84), respectively. For death, stroke, or myocardial infarction only, hazard ratios were 0.68 (0.44-1.07), 0.85 (0.56-1.29), and 0.57 (0.41-0.80), respectively.Conclusions: In patients referred for invasive coronary angiography with suspected CAD, PCAT did not predict MACE during long term follow up. Further studies are needed to understand the relationship of PCAT with CAD risk.
- Escore de Cálcio e Angiotomografia Coronariana na Estratificação do Risco Cardiovascular(2012) AZEVEDO, Clerio F.; ROCHITTE, Carlos E.; LIMA, Joao A. C.A doença cardiovascular representa a principal causa de mortalidade no mundo. A capacidade de identificar, dentre os indivíduos assintomáticos, o subgrupo que apresenta maior risco de desenvolver eventos cardiovasculares no futuro representa uma etapa fundamental em qualquer estratégia voltada para a diminuição da taxas de eventos cardiovasculares. O primeiro passo na estratificação do risco cardiovascular é a utilização dos “escores de risco global”, dentre os quais o mais frequentemente utilizado é o escore de Framingham. Entretanto, estudos prévios demonstraram que embora muito úteis, os escores clínicos, quando utilizados isoladamente, apresentam capacidade limitada de estratificação do risco cardiovascular em uma parcela significativa da população. É nesse contexto que o escore de cálcio (EC) coronariano e a angiotomografia das artérias coronárias podem desempenhar papel importante como ferramentas complementares na estratificação de risco dos pacientes assintomáticos. O EC coronariano proporciona importantes informações prognósticas que são incrementais aos escores clínicos baseados nos fatores de risco tradicionais e a outras modalidades diagnósticas, como a dosagem da proteína Creativa, por exemplo. Além disso, o EC também tem o potencial de alterar a conduta e auxiliar no manejo clínico dos pacientes. Já a angiotomografia coronariana proporciona avaliação detalhada da anatomia das artérias coronárias, permitindo visualizar não apenas o lúmen, mas também as paredes arteriais coronarianas. Comparada à coronariografia invasiva convencional, a angiotomografia apresenta excelente acurácia para identificar e, principalmente, excluir a presença de lesões obstrutivas significativas. Adicionalmente, demonstrou-se capaz de proporcionar informações prognósticas incrementais aos fatores de risco tradicionais e ao EC coronariano.
- Diagnostic accuracy of static CT perfusion for the detection of myocardial ischemia. A systematic review and meta-analysis(2016) SORGAARD, Mathias Holm; KOFOED, Klaus Fuglsang; LINDE, Jesper James; GEORGE, Richard Thomas; ROCHITTE, Carlos Eduardo; FEUCHTNER, Gudrun; LIMA, Joao A. C.; ABDULLA, JawdatObjectives: The aim of this study is to provide a meta-analysis of all published studies assessing the diagnostic accuracy of stress CT myocardial perfusion imaging (CTP) in patients suspected of or with known coronary artery disease. This analysis is limited to static stress CTP. Methods: Systematic literature review and meta-analysis of studies examining the diagnostic accuracy of static CTP imaging alone or combined with coronary CT angiography (CTA) in comparison to single photon emission computed tomography (SPECT), magnetic resonance perfusion (MRP), and/or invasive coronary angiography with and without fractional flow reserve (FFR). Results: The search revealed 19 eligible studies including 1188 patients. Pooled results showed that CTP had a good agreement with SPECT and MRP. On a per-patient level, sensitivity, specificity and AUC were 0.85 (95% CI: 0.70-0.93), 0.81 (95% CI: 0.59-0.93), 0.90 (95% CI: 0.87-0.92). On a per-artery level, sensitivity, specificity and AUC were 0.80 (95% CI: 0.67-0.88), 0.81 (95% CI: 0.72-0.88) and 0.87 (95% CI: 0.84-0.90). When invasive coronary angiography was used as reference standard, combined coronary CTA and CTP compared to coronary CTA alone significantly improved the specificity from 0.62 (95% CI: 0.52-0.70) to 0.84 (95% CI: 0.74-0.91) on a per-patient level (p = 0.008) and from 0.72 (95% CI: 0.63-0.79) to 0.90 (95% CI: 0.85-0.93) on a per-artery level (p = 0.0001) without significant decrease in sensitivity (p = 0.59 and p = 0.23, respectively). Conclusion: In selected patients, static CT myocardial perfusion has high diagnostic accuracy to detecting myocardial ischemia. Specificity increases significantly when CT myocardial perfusion is combined with coronary CFA.
- Accuracy of multidetector computed tomography for detection of coronary artery stenosis in acute coronary syndrome compared with stable coronary disease: A CORE64 multicenter trial substudy(2014) SARA, Leonardo; ROCHITTE, Carlos E.; LEMOS, Pedro A.; NIINUMA, Hiroyuki; DEWEY, Marc; SHAPIRO, Edward P.; GOTTLIEB, Ilan; MANSUR, Antonio P.; NICOLAU, Jose C.; LARDO, Albert C.; AZEVEDO, Clerio F.; KALIL-FILHO, Roberto; VAVERE, Andrea L.; COHN, Silvia; COX, Christopher; BRINKER, Jeffrey; MILLER, Julie M.; LIMA, Joao A. C.Background: Multi-detector computed tomography angiography (MDCTA) is a promising method for risk assessment of patients with acute chest pain. However, its diagnostic performance in higher-risk patients has not been investigated in a large international multicenter trial. Therefore, in the present study we sought to estimate the diagnostic accuracy of MDCTA to detect significant coronary stenosis in patients with acute coronary syndrome (ACS). Methods: Patients included in the CORE64 study were categorized as suspected-ACS or non-ACS based on clinical data. A 64-row coronary MDCTA was performed before invasive coronary angiography (ICA) and both exams were evaluated by blinded, independent core laboratories. Results: From 371 patients included, 94 were categorized as suspected ACS and 277 as non-ACS. Patient-based analysis showed an area under the receiver-operating-characteristic curve (AUC) for detecting >= 50% coronary stenosis of 0.95 (95% CI: 0.88-0.98) in ACS and 0.92 (95% CI: 0.88-0.95) in non-ACS group (P = 0.29). The sensitivity, specificity, positive and negative predictive values of MDCTA were 0.90(0.80-0.96), 0.88(0.70-0.98), 0.95(0.87-0.99) and 0.77(0.58-0.90) in suspected ACS patients and 0.87(0.81-0.92), 0.86(0.79-0.92), 0.91(0.85-0.95) and 0.82(0.74-0.89) in non-ACS patients (P NS for all comparisons). The mean calcium scores (CS) were 282 +/- 449 in suspected ACS and 435 +/- 668 in non-ACS group. The accuracy of CS to detect significant coronary stenosis was only moderate and the absence or minimal coronary artery calcification could not exclude the presence of significant coronary stenosis, particularly in ACS patients. Conclusions: The diagnostic accuracy of MDCTA to detect significant coronary stenosis is high and comparable for both ACS and non-ACS patients.
- Combined coronary angiography and myocardial perfusion by computed tomography in the identification of flow-limiting stenosis - The CORE320 study: An integrated analysis of CT coronary angiography and myocardial perfusion(2015) MAGALHAES, Tiago A.; KISHI, Satoru; GEORGE, Richard T.; ARBAB-ZADEH, Armin; VAVERE, Andrea L.; COX, Christopher; MATHESON, Matthew B.; MILLER, Julie M.; BRINKER, Jeffrey; CARLI, Marcelo Di; RYBICKI, Frank J.; ROCHITTE, Carlos E.; CLOUSE, Melvin E.; LIMA, Joao A. C.Background: The combination of coronary CT angiography (CTA) and myocardial CT perfusion (CTP) is gaining increasing acceptance, but a standardized approach to be implemented in the clinical setting is necessary. Objectives: To investigate the accuracy of a combined coronary CTA and myocardial CTP comprehensive protocol compared to coronary CTA alone, using a combination of invasive coronary angiography and single photon emission CT as reference. Methods: Three hundred eighty-one patients included in the CORE320 trial were analyzed in this study. Flow-limiting stenosis was defined as the presence of >= 50% stenosis by invasive coronary angiography with a related perfusion defect by single photon emission CT. The combined CTA + CTP definition of disease was the presence of a >= 50% stenosis with a related perfusion defect. All data sets were analyzed by 2 experienced readers, aligning anatomic findings by CTA with perfusion defects by CTP. Results: Mean patient age was 62 +/- 6 years (66% male), 27% with prior history of myocardial infarction. In a per-patient analysis, sensitivity for CTA alone was 93%, specificity was 54%, positive predictive value was 55%, negative predictive value was 93%, and overall accuracy was 69%. After combining CTA and CTP, sensitivity was 78%, specificity was 73%, negative predictive value was 64%, positive predictive value was 0.85%, and overall accuracy was 75%. In a per-vessel analysis, overall accuracy of CTA alone was 73% compared to 79% for the combination of CTA and CTP (P < .0001 for difference). Conclusions: Combining coronary CTA and myocardial CTP findings through a comprehensive protocol is feasible. Although sensitivity is lower, specificity and overall accuracy are higher than assessment by coronary CTA when compared against a reference standard of stenosis with an associated perfusion defect.
- ECG scar quantification correlates with cardiac magnetic resonance scar size and prognostic factors in Chagas' disease(2011) STRAUSS, David G.; CARDOSO, Savio; LIMA, Joao A. C.; ROCHITTE, Carlos E.; WU, Katherine C.Objective To test the hypothesis that 12-lead ECG QRS scoring quantifies myocardial scar and correlates with disease severity in Chagas' heart disease. Design Patients underwent 12-lead ECG for QRS scoring and cardiac magnetic resonance with late gadolinium enhancement (CMR-LGE) to assess myocardial scar. Setting University of Sao Paulo Medical School, Sao Paulo, Brazil. Patients 44 Seropositive patients with Chagas' disease without a history of myocardial infarction and at low risk for coronary artery disease. Main outcome measures Correlation between QRS score, CMR-LGE scar size and left ventricular ejection fraction. Relation between QRS score, heart failure (HF) class and history of ventricular tachycardia (VT). Results QRS score correlated directly with CMR-LGE scar size (R=0.69, p<0.0001) and inversely with left ventricular ejection fraction (R=-0.54, p=0.0002), which remained significant in the subgroup with conduction defects. Patients with class II or III HF had significantly higher QRS scores than those with class I HF (5.1 +/- 3.4 vs 2.1 +/- 3.1 QRS points (p=0.002)) and patients with a history of VT had significantly higher QRS scores than those without a history of VT (5.3 +/- 3.2% vs 2.6 +/- 3.4 QRS points (p=0.02)). A QRS score >= 2 points had particularly good sensitivity and specificity (95% and 83%, respectively) for prediction of large CMR-LGE, and a QRS score >= 7 points had particularly high specificity (92% and 89%, respectively) for predicting significant left ventricular dysfunction and history of VT. Conclusions The wide availability of 12-lead ECG makes it an attractive screening tool and may enhance clinical risk stratification of patients at risk for more severe, symptomatic Chagas' heart disease.